Sterically controlled self-assembly of tetrahedral M(6)L(4) cages via cationic N-donor ligands.

Tripodal cationic N-donor ligands exhibit sterically controlled self-assembly of tetrahedral M6L4 coordination cages that promote selective anion encapsulation (PF6(-)OTf(-)) in the solid state. The described method is a potential template for stepwise assembly of hetero-ligand coordination cages and polymers.

1-{2-[4-(4-Nitrophenyl)piperazin-1-yl]ethyl}-4-aza-1-azoniabicyclo[2.2.2]octane iodide

The title compound, C18H28N5O2+·I−, was observed as a main product in an intended 1:1 reaction between 4-iodonitrobenzene and 1,4-diazabicyclo[2.2.2]octane (DABCO). In the reaction, DABCO undergoes a ring opening to yield a quaternary salt of DABCO and 1-ethyl-4-(4-nitrophenyl)piperazine with an iodide anion. The crystal structure determination was carried out as no crystal structure had been previously reported in the investigations describing the corresponding reaction with 4-chloronitrobenze. Indeed, the crystal structure of the title compound confirms the molecular composition proposed earlier for the analogous chloride salt. The cation conformation is similar to the …

Dioxomolybdenum(VI) and -Tungsten(VI) Amino Bisphenolates as Epoxidation Catalysts

Low-cost metallate salts Na2MO4·2H2O (M = molybdenum, tungsten) react with a tridentate amine bisphenol bis(2-hydroxy-3-tert-butyl-5-methylbenzyl)methylamine (H2ONOtBu) under ambient conditions in acidic methanol solutions. The reactions lead to the formation of isostructural dioxo complexes [MO2(ONOtBu)(MeOH)]·MeOH in convenient yields. Spectral data as well as X-ray analyses reveal these complexes to be isostructural. Both compounds were tested as catalysts for epoxidation of olefins using cis-cyclooctene, cyclohexene, norbornene and styrene as substrates and tert-butyl hydroperoxide and hydrogen peroxide as oxidants. The molybdenum complex catalyses selectively the oxidation of cis-cyclo…

Asymmetric Synthesis of Five-Membered Spiropyrazolones via N-Heterocyclic Carbene (NHC)-Catalyzed [3+2] Annulations

A new synthetic strategy for the asymmetric synthesis of five-membered spiropyrazolones via N-heterocyclic carbene-catalyzed [3+2] annulations employing enals and unsaturated pyrazolones as substrates has been developed. The new protocol allows the flexible variation of all four substituents of the pharmaceutically important spiropyrazolones in moderate to very good yields and in most cases with excellent diastereoselectivities and good to excellent enantioselectivities.

Halogen bonds in 2,5-dihalopyridine-copper(II) chloride complexes

Ten coordination complexes obtained through a facile reaction between 2,5-dihalopyridines and copperIJII) chloride (CuCl2) are characterized using single crystal X-ray diffraction. Two series of dihalopyridine complexes based on 2-chloro-5-X-pyridine and 2-bromo-5-X-pyridine (X = F, Cl, Br and I) were prepared to analyze the C–X2/X5⋯Cl–Cu halogen bonds (XB). The influence of X2- and X5-substituents on the respective interactions was examined by comparing them to the X2/X3⋯Cl–Cu XBs found in mono-substituted halopyridine complexes, (n-X-pyridine)2·CuCl2 (n = 2, 3 and X = Cl, Br and I). Varying the X5-halogens in (2,5-dihalopyridine)2·CuCl2, the C5–X5⋯Cl–Cu XBs follow the order F5 1 and they c…

Tetrameric and Dimeric [N∙∙∙I+∙∙∙N] Halogen-Bonded Supramolecular Cages

Tripodal N-donor ligands are used to form halogen-bonded assemblies via structurally analogous Ag+-complexes. Selective formation of discrete tetrameric I6L4 and dimeric I3L2 halonium cages, wherein multiple [N∙∙∙I+∙∙∙N] halogen bonds are used in concert, can be achieved by using sterically rigidified cationic tris(1-methyl-1-azonia-4-azabicyclo[2.2.2]octane)-mesitylene ligand, L1(PF6)3, and flexible ligand 1,3,5-tris(imidazole-1-ylmethyl)-2,4,6-trimethylbenzene, L2, respectively. The iodonium cages, I6L14(PF6)18 and I3L22(PF6)3, were obtained through the [N∙∙∙Ag+∙∙∙N] → [N∙∙∙I+∙∙∙N] cation exchange reaction between the corresponding Ag6L14(PF6)18 and Ag3L22(PF6)3 coordination cages, prepar…

Amide functionalized aminobisphenolato MoO2 and WO2 complexes: Synthesis, characterization, and alkene epoxidation catalysis

The use of dioxidomolybdenum(vi) and -tungsten(vi) complexes supported by a variety of structurally different tri- and tetradentate aminobisphenolato ligands as pre-catalysts in the epoxidation of alkenes is well established. However, under the widely used standard 1 mol-% catalyst loadings these types of complexes generally show modest activity only. Recently, amide functionalities in the ligand design of various aminomonophenolato MoO2 complexes have been shown to lead to heightened catalytic activity in alkene epoxidation. In this paper we show that similar ligand amide functionalization can lead to significant enhancement in the alkene epoxidation activity of aminobisphenolato MoO2 comp…

Synthesis, NMR spectral and single crystal X-ray structural studies on Ni(II) dithiocarbamates. Fabrication of nickel sulfide nanospheres by the solvothermal method

Abstract Three dithiocarbamatonickel(II) complexes, [Ni(bzbudtc)2] (1), [Ni(bzbudtc)(PPh3)(NCS)] (2) and [Ni(bzbudtc)(PPh3)(CN)] (3) (where, bzbudtc = the N-benzyl-N-butyldithiocarbamato anion and PPh3 = triphenylphosphine), were prepared. All three complexes were analyzed by UV–Vis, IR and NMR (1H, 13C and 31P) spectra. The 13C NMR spectra of complexes 1–3 show the most crucial thioureide signal at around 200 ppm. A significant deshielding observed for the 31P signals in 2 and 3 reveals the effective bonding of phosphorus to the metal center. Single crystal X-ray analysis of crystals of 1–3 show that all the described complexes exhibit a distorted square planar coordination geometry in the…

Series of Near-IR-Absorbing Transition Metal Complexes with Redox Active Ligands

New soluble and intensely near-IR-absorbing transition metal (Ti, Zr, V, Ni) complexes were synthesized using a redox non-innocent N,N&rsquo

Phase selective synthesis of ZnS nanoparticles from structurally new dithiocarbamate precursor

Abstract A phase selective solvothermal synthesis of ZnS (wurzite) nanoparticles with a flower-like morphology using a dithiocarbamate precursor, [Zn(4-dpmpzdtc)2(dpmpz)] (1) (where, dpmpz=(diphenylmethyl)piperazine), is described. The nanoparticles were identified as ZnS (wurzite) with the particle size of about 3 to 10 nm by scanning and transmission electron microscopy as well as powder X-ray diffraction (XRD). In addition, the precursor complex 1 was characterized using single crystal X-ray diffraction.

Oxidovanadium(v) complexes with l-proline-based amino acid phenolates

L-proline was used to prepare chiral, tridentate amino acid phenol proligands H2L1—4. These proligands react with vanadium precursors VO(acac)2, VOSO4 ∙ 5 H2O and VO(OPr)3 in methanol to form the corresponding oxidoalkoxidovanadium(V) complexes 1—4. The complexes crystallize from methanol, and are octahedrally coordinated with a general formula [VO(L1—4)(OMe)(MeOH)]. In solution, however, they adopt several different conformations or isomeric structures depending on the solvent. peerReviewed

Synthesis and structural studies on Ni(II) dithiocarbamates : Exploring intramolecular Ni···H-C interactions

Five new Ni(II) dithiocarbamates with NiS4, NiS2PN and NiS2PCl coordination spheres, viz. [Ni(bupmbzdtc)2] (1), [Ni(bupmbzdtc)(PPh3)(NCS)] (2), [Ni(bupmbzdtc)(PPh3)Cl] (3), [Ni(4-dpmpzdtc)(PPh3)Cl] (4) and [Ni(pbbzbudtc)(PPh3)(NCS)] (5), where bupmbzdtc = N-butyl(p-methylbenzyl)dithiocarbamato anion, 4-dpmpzdtc = 4-(diphenylmethyl)piperazinecarbodithioato anion, pbbzbudtc = N-(p-bromobenzyl)butyl-dithiocarbamato anion and PPh3 = triphenylphosphine, were synthesized and characterized by UV, IR, NMR and single crystal X-ray diffraction methods. Spectral results suggest a square planar geometry around the Ni(II) metal center for all the synthesized complexes. Single crystal X-ray structural an…

Enantioselective Total Syntheses of (+)-Hippolachnin A, (+)-Gracilioether A, (-)-Gracilioether E, and (-)-Gracilioether F.

The Plakortin polyketides represent a structurally and biologically fascinating class of marine natural products. Herein, we report a unified strategy that enables the divergent syntheses of various Plakortin polyketides with high step-economy and overall efficiency. As proof-of-concept cases, the enantioselective total syntheses of (+)-hippolachnin A, (+)-gracilioether A, (-)-gracilioether E, and (-)-gracilioether F have been accomplished based on a series of bio-inspired, rationally designed, or serendipitously discovered transformations, which include (1) an organocatalytic asymmetric 1,4-conjugate addition to assemble the common chiral γ-butenolide intermediate enroute to all of the afo…

Pyrazolium- and 1,2-Cyclopentadiene-Based Ligands as σ-Donors: a Theoretical Study of Electronic Structure and Bonding

A high-level theoretical investigation of 1,2-cyclopentadiene (4) was performed using density functional theory and wave function methods. The results reveal that, in contrast to earlier assumptions, the ground state of this ephemeral “allene” is carbene-like with a small diradical component. Furthermore, the electronic structure and chemistry of 4 are found to parallel that of 1,2,4,6-cycloheptatetraene: both molecules possess a low-lying excited singlet state with a closed-shell carbenic structure, enabling rich coordination chemistry. Energy decomposition analyses conducted for currently unknown metal complexes of 4 as well as those involving stable carbenes based on the pyrazolium frame…

A diamagnetic iron complex and its twisted sister – structural evidence on partial spin state change in a crystalline iron complex

We report here the syntheses of a diamagnetic Fe complex [Fe(HL)2] (1), prepared by reacting a redox non-innocent ligand precursor N,N′-bis(3,5-di-tert-butyl-2-hydroxy-phenyl)-1,2-phenylenediamine (H4L) with FeCl3, and its phenoxazine derivative [Fe(L′)2] (2), which was obtained via intra-ligand cyclisation of the parent complex. Magnetic measurements, accompanied by spectroscopic, structural and computational analyses show that 1 can be viewed as a rather unusual Fe(III) complex with a diamagnetic ground state in the studied temperature range due to a strong antiferromagnetic coupling between the low-spin Fe(III) ion and a radical ligand. For a paramagnetic high-spin Fe(II) complex 2 it wa…

Synthesis of self-assembled mesoporous 3D In2O3 hierarchical micro flowers composed of nanosheets and their electrochemical properties

This report describes the methodology for the fabrication of mesoporous In2O3 microflowers by hydrothermal and calcination procedures in which In(OH)3/In2S3 acts as an intermediate. Both In2O3 and its precursor were analyzed with scanning electron microscopy, energy dispersive X-ray spectrophotometry, transmission electron microscopy and powder X-ray diffraction. BET surface area, pore size and pore volume analyses were also carried out. Electron microscopy images clearly evidence the self-assembly of 2D nanosheets into the micro flower structure. The mechanism of self-assembly and calcination is reported. Electrochemical properties of the synthesized In2O3 micro flowers were studied. peerR…

Vanadium complexes with multidentate amine bisphenols

The reaction of VO(acac)2 (acac(-) = acetyl acetonate) with tripodal glycine bisphenol H3L(1) under an ambient atmosphere yields a hexacoordinated vanadium(iv) complex [V(acac)(L(1))] (1). The corresponding reactions with tripodal 2-propanolamine bisphenol H3L(2) and potentially pentadentate ethoxyethanolamine bisphenol H3L(3) lead to the oxidation of the metal centre and formation of mononuclear oxovanadium(v) complexes [VO(L(2))] (2) and [VO(L(3))] (3), respectively. Alternatively, these latter two complexes can be prepared using VOSO4·5H2O or VO(OPr)3 as a precursor. The CV of 1 in an ACN solution shows a reversible one-electron process at E1/2 = +1.18 V, whereas 2 and 3 have an irrevers…

Synthesis, NMR spectral and structural studies on mixed ligand complexes of Pd(II) dithiocarbamates: First structural report on palladium(II) dithiocarbamate with SCN-ligand

Abstract Three new mixed ligand complexes of palladium(II) dithiocarbamates; [Pd(4-dpmpzdtc)(PPh3)(SCN)] (1), [Pd(4-dpmpzdtc)(PPh3)Cl] (2) and [Pd(bzbudtc)(PPh3)Cl] (3), (where, 4-dpmpzdtc = 4-(diphenylmethyl)piperazinecarbodithioato anion, bzbudtc = N-benzyl-N-butyldithiocarbamato anion and PPh3 = triphenylphosphine) have been synthesized from their respective parent dithiocarbamates by ligand exchange reactions and characterized by IR and NMR (1H, 13C and 31P) spectroscopy. IR and NMR spectral data support the isobidentate coordination of the dithiocarbamate ligands in all complexes (1–3) in solid and in solution, respectively. Single crystal diffraction analysis of complexes 1–3 evidence…

Oxidovanadium(V) amine bisphenolates as epoxidation, sulfoxidation and catechol oxidation catalysts

Air-stable oxidovanadium(V) complexes with tetradentate amine bisphenolate ligands were made by the reaction of VOSO4·xH2O and ligand precursors in MeOH solutions. Isolated compounds were studied as catechol oxidase models as well as catalysts for epoxidation and sulfoxidation reactions. All compounds can catalyse such oxidation reactions without notable structure-activity correlations. The 51V NMR studies indicate that the complexes turn to the number of different species during the catalytic experiments. peerReviewed

Thermal, spectroscopic and crystallographic analysis of mannose-derived linear polyols

The major diastereomer formed in the Barbier-type metal-mediated allylation of D-mannose has previously been shown to adopt a perfectly linear conformation, both in solid state and in solution, resulting in the formation of hydrogen-bonded networks and subsequent aggregation from aqueous solution upon stirring. Here, a comprehensive study of the solid state structure of both the allylated D-mannose and its racemic form has been conducted. The binary melting point diagram of the system was determined by differential scanning calorimetry analysis, and the obtained results, along with structure determination by single crystal X-ray diffraction, confirmed that allylated mannose forms a true rac…

Metal-bound Nitrate Anion as an Acceptor for Halogen Bonds in mono-Halopyridine-Copper(II) nitrate Complexes

Fifteen n-halopyridine-Cu(NO3)2 complexes (n = 2, 3, 4) obtained from two different solvents, acetonitrile and ethanol, are investigated for C–X···O–N halogen bonds (XBs) in the solid state by single and powder X-ray diffraction. The nitrate anions bind copper(II) via anisobidentate modes and one of three oxygens act as an XB acceptor to halogens on the core pyridine rings. The N-metal coordination activates the electron-deficient π-system and triggers even C2- and C4-chlorines in the corresponding [Cu(2-chloropyridine)2(NO3)2] and [Cu(4-chloropyridine)2(NO3)2(ACN)] complexes to form short C–Cl2/Cl4···O–N halogen bonds. Notably, the C2–Cl2···O–N XBs with a normalized XB distance parameter (…

Synthesis and characterisation of p-block complexes of biquinoline at different ligand charge states

The first examples of p-block coordination complexes of biquinoline, namely [(biq)BCl2]Cl and [(biq)BCl2]˙, were synthesized and structurally characterized. The acquired data allowed the estimation of the ligand charge state based on its metrical parameters. The subsequent use of this protocol, augmented with theoretical calculations, revealed ambiguities in the published data for transition metal complexes of biquinoline. peerReviewed

Synthesis of new hybrid 1,4-thiazinyl-1,2,3-dithiazolyl radicals via Smiles rearrangement

The condensation reaction of 2-aminobenzenethiols and 3-aminopyrazinethiols with 2-amino-6-fluoro-N-methylpyridinium triflate afforded thioether derivatives that were found to undergo Smiles rearrangement and cyclocondensation with sulphur monochloride to yield new hybrid 1,4-thiazine-1,2,3-dithiazolylium cations. The synthesized cations were readily reduced to the corresponding stable neutral radicals with spin densities delocalized over both 1,4-thiazinyl and 1,2,3-dithiazolyl moieties. peerReviewed

Organocatalytic Asymmetric Synthesis of 2,3′-Connected Bis-Indolinones by Mannich Reactions of N-Acetylindolin-3-ones with Isatin N-Boc Ketimines

A highly diastereo- and enantioselective Mannich reaction of N-acetylindolin-3-ones with isatin N-Boc ketimines to form 2,3′-connected bis-indolinones is developed employing a low loading of a readily available bifunctional thiourea catalyst. The asymmetric synthesis connects two indolinones via a vic-diamine unit and generates two neighboring stereocenters.

Halogen bonds in 2,5-dihalopyridine-copper(II) chloride complexes

Ten coordination complexes obtained through a facile reaction between 2,5-dihalopyridines and copper(II) chloride (CuCl2) are characterized using single crystal X-ray diffraction. Two series of dihalopyridine complexes based on 2-chloro-5-X-pyridine and 2-bromo-5-X-pyridine (X = F, Cl, Br and I) were prepared to analyze the C–X2/X5⋯Cl–Cu halogen bonds (XB). The influence of X2- and X5-substituents on the respective interactions was examined by comparing them to the X2/X3⋯Cl–Cu XBs found in mono-substituted halopyridine complexes, (n-X-pyridine)2·CuCl2 (n = 2, 3 and X = Cl, Br and I). Varying the X5-halogens in (2,5-dihalopyridine)2·CuCl2, the C5–X5⋯Cl–Cu XBs follow the order F5 1 and they c…

Aminobisphenolate supported tungsten disulphido and dithiolene complexes

Dioxotungsten(vi) complexes with tetradentate amino bisphenolates were converted into the corresponding Cs-symmetric amino bisphenolate disulphido complexes by a reaction with either Lawesson's reagent or P2S5. Further reaction with diethyl acetylenedicarboxylate leads to the formation of diamagnetic tungsten(iv) dithiolene compounds. The syntheses, crystal structures, spectroscopic and electrochemical characterization of such disulphido and dithiolene complexes are presented.

Charge-Assisted Halogen Bonding in an Ionic Cavity of a Coordination Cage Based on a Copper(I) Iodide Cluster.

The design of molecular containers capable of selective binding of specific guest molecules presents an interesting synthetic challenge in supramolecular chemistry. Here, we report the synthesis and structure of a coordination cage assembled from Cu3I4– clusters and tripodal cationic N-donor ligands. Owing to the localized permanent charges in the ligand core the cage binds iodide anions in specific regions within the cage by ionic interactions. This allows the selective binding of bromomethanes as secondary guest species within cage promoted by halogen bonding, which was confirmed by single crystal X-ray diffraction. peerReviewed

The conformational polymorphism and weak interactions in solid state structures of ten new monomeric and dimeric substituted dibenzyldimethylammonium chloridopalladate salts

In this study, ten new dibenzyldimethyl/ethyl ammonium chloridopalladate(II) compounds with five different cations and two anions have been synthesized and a simple method for a synthesis, in which hydrochloric acid solutions are used, has been described. Furthermore, twelve structures including two polymorphs have been obtained from hydrochloric and methanol/acetonitrile solutions. The anion–cation and cation–cation interactions of the synthesized compounds have been studied mainly by means of single X-ray diffraction in order to study the effects of varying either the anion or the cations in these QA2PdCl4 and QA2Pd2Cl6 salts. The results indicate that the effects of intermolecular cation…

Highly Enantioselective Kinetic Resolution of Michael Adducts through N-Heterocyclic Carbene Catalysis: An Efficient Asymmetric Route to Cyclohexenes

Ahighly efficient strategy for the kinetic resolu-tion of Michael adductswas realized using achiral N-het-erocyclic carbene catalyst.The kinetic resolution providesanew convenientroute to single diastereomers of cyclo-hexenes and Michael adducts in good yields with highenantiomeric excesses (up to 99 % ee with aselectivityfactor of up to 458). This “two flies with one swat” con-cept allows the synthesis of these two synthetically valua-ble compound classes at the same time by asingle trans-formation. peerReviewed

N-Heterocyclic Carbene-Catalyzed Activation of α-Chloroaldehydes: Asymmetric Synthesis of 5-Cyano-Substituted Dihydropyranones

An N-heterocyclic carbene (NHC)-catalyzed asymmetric [4+2] annulation of (E)-2-benzoyl-3-phenylacrylonitriles with α-chloroaldehydes has been developed. The protocol leads to 5-cyano-substituted dihydropyranones in good to excellent yields with excellent diastereo- and enantioselectivities (up to 93% yield, >20:1 d.r. and 99% ee).

One‐pot synthesis of [2+2]‐helicate‐like macrocycle and 2+4‐μ 4 ‐oxo tetranuclear open frame complexes: Chiroptical properties and asymmetric oxidative coupling of 2‐naphthols

Do Extremely Bent Allenes Exist?

Bent allenes: Theoretical calculations show that extremely bent allenes, cyclic or acyclic, adopt a ground state that only bears a formal relationship to classical allenes. Consequently, five-membered ring allenes favor a carbene-like electronic structure and formally contain a trivalent carbon(II) center. peerReviewed

The Syntheses and Vibrational Spectra of 16 O- and 18 O-Enriched cis -MO2 (M=Mo, W) Complexes

Cover Feature: Highly Enantioselective Kinetic Resolution of Michael Adducts through N-Heterocyclic Carbene Catalysis: An Efficient Asymmetric Route to Cyclohexenes (Chem. Eur. J. 39/2018)

The Syntheses and Vibrational Spectra of 16O- and 18O-Enriched cis-MO2 (M=Mo, W) Complexes

In this contribution, we report convenient synthetic approaches for obtaining 16O/18O‐enriched dioxidometalVI complexes, MO2(L) (W, Mo), with a linear, tetradentate amine phenolate ligand N,N′‐dimethyl‐N,N′‐bis(2‐hydroxy‐3,5‐dimethylbenzyl)ethylenediamine (H2L) and describe their characterization by IR and Raman spectroscopy complemented by DFT computational analysis. The isotopologues of WO2(L) were made of tungstenVI trisglycolate W(eg)3 (eg=1,2‐ethanediolate dianion) and ligand H2L in the presence of either H2[16O] or H2[18O], whereas Mo16O2(L) was made using Na2MoO4⋅2H2O which was converted to Mo18O2(L) by oxido substitution using H2[18O]. The complementary IR and Raman analyses show th…

Poly[[myy-N,N'-bis(2-hydroxyethyl)-N,N,N',N'-tetramethylpropane-1,3-diaminium-kappa2O:O']tetra-myy-bromido-dibromidodimanganese(II)]

The asymmetric unit of the title three-dimensional coordination polymer, [Mn2Br6(C11H28N2O2)]n, consists of one MnII cation, half of a dicationic N,N0 -bis(2-hydroxyethyl)- N,N,N0 ,N0 -tetramethylpropane-1,3-diaminium ligand (L) (the other half being generated by a twofold rotation axis), and three bromide ions. The MnII cation is coordinated by a single L ligand via the hydroxy O atom and by five bromide ions, resulting in a distorted octahedral MnBr5O coordination geometry. Four of the bromide ions are bridging to two adjacent MnII atoms, thereby forming polymeric chains along the a and b axes. The L units act as links between neighbouring Mn—(-Br)2—Mn chains, also forming a polymeric con…

Frontispiece: Positive Allosteric Control of Guests Encapsulation by Metal Binding to Covalent Porphyrin Cages

Positive Allosteric Control of Guests Encapsulation by Metal Binding to Covalent Porphyrin Cages

The allosteric control of the receptor properties of two flexible covalent cages is reported. These receptors consist of two zinc(II) porphyrins connected by four linkers of two different sizes, each incorporating two 1,2,3‐triazolyl ligands. Silver(I) ions act as effectors, responsible for an on/off encapsulation mechanism of neutral guest molecules. Binding silver(I) ions to the triazoles opens the cages and triggers the coordination of pyrazine or the encapsulation of N,N′‐dibutyl‐1,4,5,8‐naphthalene diimide. The X‐ray structure of the silver(I)‐complexed receptor with short connectors is reported, revealing the hollow structure with a cavity well‐defined by two eclipsed porphyrins. Rath…

Single crystal X-ray structural dataset of 1,2,4-dithiazolium tetrafluoroborate

Herein, we present the crystallographic dataset of 1,2,4-dithiazolium tetrafluoroborate. Single crystal X-ray structural analysis evidences that the 1,2,4-dithiazolium ring is almost planar. The 1,2,4-dithiazolium and tetrafluoroborate ions contribute in hydrogen bonding wherein the N-H·N hydrogen bonding in 1,2,4-dithiazolium dimer forms an eight-membered pseudo ring with the R22(8) Etter's graph set. The information provided in this data contributes to the understanding of structural chemistry and hydrogen bonding interactions in dithiazole derivatives.

Oxidovanadium(v) complexes with l-proline-based amino acid phenolates

Abstract l -proline was used to prepare chiral, tridentate amino acid phenol proligands H2L1–4. These proligands react with vanadium precursors VO(acac)2, VOSO4∙5H2O and VO(OPr)3 in methanol to form the corresponding oxidoalkoxidovanadium( v ) complexes 1–4. The complexes crystallize from methanol, and are octahedrally coordinated with a general formula [VO(L1–4)(OMe)(MeOH)]. In solution, however, they adopt several different conformations or isomeric structures depending on the solvent.

Self-Assembly of Water-Mediated Supramolecular Cationic Archimedean Solids

Understanding the self-assembly of small structural units into large supramolecular assemblies remains one of the great challenges in structural chemistry. We have discovered that tetrahedral supramolecular cages, exhibiting the shapes of Archimedean solids, can be self-assembled by hydrogen bonding interactions using tricationic N-donors (1 or 2) in cooperation with water (W). Single crystal X-ray analysis shows that cage (2)4(W)6, assembled in an aqueous solution of cation 2 and KPF6, consists of four tripodal trications linked by six water monomers and resembles the shape of a truncated tetrahedron. Similarly, cage (1)4(W6)4 spontaneously self-assembles in an aqueous solution of cation 1…

Spectral and structural studies on Ni(II) dithiocarbamates: Nickel sulfide nanoparticles from a dithiocarbamate precursor

Abstract Three new planar Ni(II) dithiocarbamate complexes; [Ni(4-dpmpzdtc)2] (1), [Ni(4-dpmpzdtc)(PPh3)(NCS)] (2) and [Ni(bupcbzdtc)(PPh3)(NCS)] (3) (where, 4-dpmpzdtc = 4-(diphenylmethyl)piperazinecarbodithioato anion, bupcbzdtc = N-butyl-N-(4-chlorobenzyl))dithiocarbamato anion and PPh3 = triphenylphosphine) with “NiS4” and “NiS2PN” chromophore units were synthesized and characterized by single crystal X-ray structural analysis as well as UV–Vis, IR and NMR (1H, 13C and 31P) spectroscopy. For 2, 1H–1H COSY spectrum was also recorded. Single crystal X-ray structural analysis of 1–3, reveals a slightly distorted square planar geometry in all three complexes wherein the steric and electroni…

Facile fabrication of flower like self-assembled mesoporous hierarchical microarchitectures of In(OH)3 and In2O3: In(OH)3 micro flowers with electron beam sensitive thin petals

Abstract A template and capping-reagent free facile fabrication method for mesoporous hierarchical microarchitectures of flower-like In(OH) 3 particles under benign hydrothermal conditions is reported. Calcination of In(OH) 3 to In 2 O 3 with the retention of morphology is also described. Both In(OH) 3 and In 2 O 3 microstructures were analyzed with SEM, EDX, TEM and powder X-ray diffraction. The crystal sizes for In(OH) 3 and In 2 O 3 were calculated using the Scherrer equation. In In(OH) 3 the thin flakes at the periphery of micro flowers were electron beam sensitive. The mechanism of self-assembly process was analyzed as well.

Enantioselective Total Syntheses of (+)-Hippolachnin A, (+)-Gracilioether A, (-)-Gracilioether E and (-)-Gracilioether F

The Plakortin polyketides represent a structurally and biologically fascinating class of marine natural products. Herein, we report a unified strategy that enables the divergent syntheses of various Plakortin polyketides with high step-economy and overall efficiency. As proof-of-concept cases, the enantioselective total syntheses of (+)-hippolachnin A, (+)-gracilioether A, (−)-gracilioether E, and (−)-gracilioether F have been accomplished based on a series of bio-inspired, rationally designed, or serendipitously discovered transformations, which include (1) an organocatalytic asymmetric 1,4-conjugate addition to assemble the common chiral γ-butenolide intermediate enroute to all of the afo…

NIR-absorbing transition metal complexes with redox-active ligands

Bench top stable transition metal (M = Co, Ni, Cu) complexes with a non-innocent ortho-aminophenol derivative were synthesized by the reaction of metal(II)acetates with a ligand precursor in 2:1 ratio. The solid-state structures reveal the formation of neutral molecular complexes with square planar coordination geometries. The Co(II) and Cu(II) complexes are paramagnetic, whereas the Ni complex is a diamagnetic square planar low-spin Ni(II) complex. All complexes, and Ni(II) complex in particular, show strong absorption in the near-IR region. Peer reviewed

Molybdenum(VI) complexes with a chiral L-alanine bisphenol [O,N,O,O’] ligand : Synthesis, structure, spectroscopic properties and catalytic activity

Dioxidomolybdenum(VI) compound [MoO2Cl2(dmso)2] reacts with a chiral tetradentate O3N-type L-alanine bisphenol ligand precursor (Et3NH)H2Lala to form an oxidochloridomolybdenum(VI) complex [MoOCl(Lala)] (1) as two separable geometric isomers with phenolate groups in cis or trans positions. The single crystal X-ray and NMR analyses of cis- and trans-1 reveal that the complexes are formed of monomeric molecules, in which the ligand has a tetradentate coordination through three oxygen donors and one nitrogen donor. The reaction of Na2MoO4·2H2O with the same ligand precursor in an acidic methanol solution leads to the formation of an anionic dioxido complex (Et3NH)[MoO2(Lala)] (2) with a trans …

Synthesis, characterization, crystal structures and biological screening of 4-amino quinazoline sulfonamide derivatives

Three quinazolin-4-ylamino derivatives containing phenylbenzenesulfonamides (7a-7c) were synthesized by reacting (E)-N'-(2-cyanophenyl)-N,N-dimethyl formamidine (6) with different 4- amino-N-(phenyl)benzenesulfonamides (4a-4c) and characterized by different techniques such as HRMS, IR, 1H NMR and 13C NMR spectroscopy. The structural properties were further examined by single crystal X-ray diffraction method. The X-ray data shows that compounds 7a and 7c contain two molecules and 7b contains one molecule in the asymmetric unit. Comparison of conformation of two distinct molecules, “A” and “B”, in the asymmetric unit of 7a and 7c were studied with the aid of reported literature. The in vitro …

Dioxidomolybdenum(VI) and –tungsten(VI) complexes with tetradentate amino bisphenolates as catalysts for epoxidation

Sixteen molybdenum and tungsten complexes with tripodal or linear tetradentate amino bisphenol ligands were studied as catalysts for the epoxidation of cis-cyclooctene, 1-octene, styrene, limonene and α-terpineol. These complexes can be divided into different categories upon key features, i.e. central metal (Mo versus W), side-arm donor (O versus N), hybridization of the N-donor (pyridine versus amine), ligand geometry (tripodal versus linear diamine) and sterical hindrance (Me versus tert-Bu substituents in the phenol part). All complexes can catalyse selectively the epoxidation of cis-cyclooctene by tert-butylhydroperoxide whereas the activities and selectivities towards other olefins (1-…

Halogen Bonding Based “Catch and Release”: Reversible Solid State Entrapment of Elemental Iodine with Mono-Alkylated DABCO Salts

The halogen bonding (XB) between elemental iodine (I2) and neutral 1,4-diazabicyclo[2.2.2]octane (DABCO) and its monoalkylated PF6– salts was studied by X-ray crystallographic, thermoanalytical, and computational methods. DABCO was found to form both 1:1 and 1:2 complexes with I2 showing an exceptionally strong halogen bond (ΔEcp = −73.0 kJ/mol) with extremely short N···I distance (2.37 A) in the 1:1 complex (1a). In the more favored 1:2 complex (1b), the XB interaction was found to be slightly weaker [ΔEcp = −64.4 kJ/mol and d(N···I) = 2.42 A] as compared to 1a. The monoalkylated DABCO salts (2PF6–7PF6) form corresponding 1:1 XB complexes with I2 {[2···I2]PF6–([7···I2]PF6} similarly to the…

From Mannose to Small Amphiphilic Polyol: Perfect Linearity Leads To Spontaneous Aggregation

Terminally unsaturated and diastereochemically pure polyol derived from d-mannose shows spontaneous aggregation behavior in water solution. In order to study and clarify this unforeseen phenomenon, a conformational study based on NMR spectroscopy combined with ab initio structure analysis using the COSMO-solvation model was pursued. The results, together with X-ray diffraction studies, suggest a low energy linear conformation for this particular substrate both in solid states and in solution. For such small-sized acyclic carbohydrate derivatives, the linear conformation appears to be a key prerequisite for the unusual molecular self-assembly reported herein. peerReviewed

Bioinspired Mo, W and V complexes bearing a highly hydroxyl-functionalized Schiff base ligand

Abstract A series of bioinspired dioxidomolybdenum( vi), dioxidotungsten (vi) and oxidovanadium (v) complexes [MoO2(H2LSaltris)], [WO2(H2LSaltris)] and [VO(HLSaltris)]2 were prepared by the reaction of a hydroxyl-rich Schiff base proligand N-(1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl)-3,5-di-tert-butylsalicylaldimine (H4LSaltris) with metal precursors in methanol solutions. Molybdenum and tungsten complexes crystallize as mononuclear molecules, whereas the vanadium complex forms dinuclear units. From the complexes, [VO(HLSaltris)]2 shows activity in the oxidation of 4-tert-butylcatechol and 3,5-di-tert-butylcatechol, mimicking the action of the dicopper enzyme catechol oxidase.

NI halogen bonding supported stabilization of a discrete pseudo-linear [I12]2− polyiodide

Two different dicationic N-donors, based on the DABCO diamine, have been studied as templates for polyiodides. The results present a new strategy for polyiodide stabilization, which involves both N⋯I halogen bonding and cation–anion interactions. This is highlighted by the self-assembly of an unprecedented discrete pseudo-linear dodecaiodide species.

Switchable Access to Different Spirocyclopentane Oxindoles by N-Heterocyclic Carbene Catalyzed Reactions of Isatin-Derived Enals and N-Sulfonyl Ketimines

A novel NHC-catalyzed annulation protocol for the asymmetric synthesis of biologically important β-lactam fused spirocyclopentane oxindoles with four contiguous stereocenters, including two quaternary carbon centers, was developed. Alternatively, spirocyclopentane oxindoles containing an enaminone moiety can be achieved using the same starting materials, isatin-derived enals, and N-sulfonyl ketimines, in the presence of a slightly different NHC catalytic system. This switchable annulation strategy enables the selective assembly of both heterocyclic scaffolds with good yields and excellent enantioselectivities for a broad range of substrates.

N‐Heterocyclic Carbene Catalyzed [4+2] Annulation of Enals via a Double Vinylogous Michael Addition: Asymmetric Synthesis of 3,5‐Diaryl Cyclohexenones

A strategy for the N-heterocyclic carbene (NHC) catalyzed asymmetric synthesis of 3,5-diaryl substituted cyclohexenones has been developed via oxidative [4+2] annulation of enals and alkenylisoxazoles. It is the first example of using NHC organocatalysis in a double vinylogous Michael type reaction, a challenging but highly desirable topic. This unprecedented protocol affords good yields as well as high to excellent diastereo- and enantioselectivities.

Tetrameric and Dimeric [N∙∙∙I+∙∙∙N] Halogen-Bonded Supramolecular Cages

Tripodal N‐donor ligands are used to form halogen‐bonded assemblies via structurally analogous Ag+‐complexes. Selective formation of discrete tetrameric I6L4 and dimeric I3L2 halonium cages, wherein multiple [N⋅⋅⋅I+⋅⋅⋅N] halogen bonds are used in concert, can be achieved by using sterically rigidified cationic tris(1‐methyl‐1‐azonia‐4‐azabicyclo[2.2.2]octane)‐mesitylene ligand, L1(PF6)3, and flexible ligand 1,3,5‐tris(imidazole‐1‐ylmethyl)‐2,4,6‐trimethylbenzene, L2, respectively. The iodonium cages, I6L14(PF6)18 and I3L22(PF6)3, were obtained through the [N⋅⋅⋅Ag+⋅⋅⋅N]→ [N⋅⋅⋅I+⋅⋅⋅N] cation exchange reaction between the corresponding Ag6L14(PF6)18 and Ag3L22(PF6)3 coordination cages, prepare…

1‑Phenyl-3-(pyrid-2-yl)benzo[e][1,2,4]triazinyl: The First "Blatter Radical" for Coordination Chemistry

A neutral air- and moisture-stable N,N′-chelating radical ligand, 1-phenyl-3-(pyrid-2-yl)benzo[e][1,2,4]triazinyl (1) was synthesized and characterized by electron paramagnetic resonance spectroscopy, X-ray crystallography, and magnetic measurements. Subsequent reaction of 1 with Cu(hfac)2·2H2O (hfac = hexafluoroacetylacetonate) under ambient conditions afforded the coordination complex Cu(1)(hfac)2 in which the radical binds to the metal in a bidentate fashion. Magnetic susceptibility data collected from 1.8 to 300 K indicate a strong ferromagnetic metal-radical interaction in the complex and weak antiferromagnetic radical···radical interactions between the Cu(1)(hfac)2 units. Detailed com…

Asymmetric Synthesis of Amino-Bis-Pyrazolone Derivatives via an Organocatalytic Mannich Reaction.

A new series of N-Boc ketimines derived from pyrazolin-5-ones have been used as electrophiles in asymmetric Mannich reactions with pyrazolones. The amino-bis-pyrazolone products are obtained in excellent yields and stereoselectivities by employing a very low loading of 1 mol % of a bifunctional squaramide organocatalyst. Depending on the substitution at position 4 of the pyrazolones, the new protocol allows for the generation of one or two tetrasubstituted stereocenters, including a one-pot version combing the Mannich reaction with a base-mediated halogenation. peerReviewed

Synthesis and structural studies on Ni(II) dithiocarbamates : Exploring intramolecular Ni···H-C interactions

Abstract Five new Ni(II) dithiocarbamates with NiS4, NiS2PN and NiS2PCl coordination spheres, viz. [Ni(bupmbzdtc)2] (1), [Ni(bupmbzdtc)(PPh3)(NCS)] (2), [Ni(bupmbzdtc)(PPh3)Cl] (3), [Ni(4-dpmpzdtc)(PPh3)Cl] (4) and [Ni(pbbzbudtc)(PPh3)(NCS)] (5), where bupmbzdtc = N-butyl(p-methylbenzyl)dithiocarbamato anion, 4-dpmpzdtc = 4-(diphenylmethyl)piperazinecarbodithioato anion, pbbzbudtc = N-(p-bromobenzyl)butyl-dithiocarbamato anion and PPh3 = triphenylphosphine, were synthesized and characterized by UV, IR, NMR and single crystal X-ray diffraction methods. Spectral results suggest a square planar geometry around the Ni(II) metal center for all the synthesized complexes. Single crystal X-ray stru…

Poly[[μ-N,N′-bis(2-hydroxyethyl)-N,N,N′,N′-tetramethylpropane-1,3-diaminium-κ2O:O′]tetra-μ-bromido-dibromidodimanganese(II)]

The asymmetric unit of the title three-dimensional coordination polymer, [Mn2Br6(C11H28N2O2)] n , consists of one Mn(II) cation, half of a dicationic N,N'-bis-(2-hy-droxy-eth-yl)-N,N,N',N'-tetra-methyl-propane-1,3-diaminium ligand (L) (the other half being generated by a twofold rotation axis), and three bromide ions. The Mn(II) cation is coordinated by a single L ligand via the hy-droxy O atom and by five bromide ions, resulting in a distorted octa-hedral MnBr5O coordination geometry. Four of the bromide ions are bridging to two adjacent Mn(II) atoms, thereby forming polymeric chains along the a and b axes. The L units act as links between neighbouring Mn-(μ-Br)2-Mn chains, also forming a …

Synthesis of self-assembled mesoporous 3D In2O3 hierarchical micro flowers composed of nanosheets and their electrochemical properties

This report describes the methodology for the fabrication of mesoporous In2O3 microflowers by hydrothermal and calcination procedures in which In(OH)3/In2S3 acts as an intermediate. Both In2O3 and its precursor were analyzed with scanning electron microscopy, energy dispersive X-ray spectrophotometry, transmission electron microscopy and powder X-ray diffraction. BET surface area, pore size and pore volume analyses were also carried out. Electron microscopy images clearly evidence the self-assembly of 2D nanosheets into the micro flower structure. The mechanism of self-assembly and calcination is reported. Electrochemical properties of the synthesized In2O3 micro flowers were studied.

CCDC 1429013: Experimental Crystal Structure Determination

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CCDC 1821333: Experimental Crystal Structure Determination

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CCDC 1901279: Experimental Crystal Structure Determination

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CCDC 1959439: Experimental Crystal Structure Determination

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CCDC 1821338: Experimental Crystal Structure Determination

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CCDC 1023710: Experimental Crystal Structure Determination

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CCDC 1484210: Experimental Crystal Structure Determination

Related Article: Jörg A. Schachner, Nadia C. Mösch-Zanetti, Anssi Peuronen, Ari Lehtonen|2017|Polyhedron|134|73|doi:10.1016/j.poly.2017.06.011

CCDC 1554863: Experimental Crystal Structure Determination

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CCDC 1855152: Experimental Crystal Structure Determination

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CCDC 990215: Experimental Crystal Structure Determination

Related Article: Balasubramaniam Arul Prakasam, Manu Lahtinen, Anssi Peuronen, Manickavachagam Muruganandham, Erkki Kolehmainen, Esa Haapaniemi, Mika Sillanpää|2015|Inorg.Chim.Acta|425|239|doi:10.1016/j.ica.2014.09.016

CCDC 1959438: Experimental Crystal Structure Determination

Related Article: Pasi Salonen, Anssi Peuronen, Ari Lehtonen|2020|Inorg.Chim.Acta|503|119414|doi:10.1016/j.ica.2020.119414

CCDC 1901284: Experimental Crystal Structure Determination

Related Article: Rakesh Puttreddy, Anssi Peuronen, Manu Lahtinen, Kari Rissanen|2019|Cryst.Growth Des.|19|3815|doi:10.1021/acs.cgd.9b00284

CCDC 1821334: Experimental Crystal Structure Determination

Related Article: Rakesh Puttreddy, Carolina von Essen, Anssi Peuronen, Manu Lahtinen, Kari Rissanen|2018|CrystEngComm|20|1954|doi:10.1039/C8CE00209F

CCDC 1007104: Experimental Crystal Structure Determination

Related Article: Balasubramaniam Arul Prakasam, Manu Lahtinen, Anssi Peuronen, Manickavachagam Muruganandham, Erkki Kolehmainen, Esa Haapaniemi, Mika Sillanpää|2015|Inorg.Chim.Acta|425|239|doi:10.1016/j.ica.2014.09.016

CCDC 1554861: Experimental Crystal Structure Determination

Related Article: Lotta Turunen, Anssi Peuronen, Samu Forsblom, Elina Kalenius, Manu Lahtinen and Kari Rissanen|2017|Chem.-Eur.J.|23|11714|doi:10.1002/chem.201702655

CCDC 1936526: Experimental Crystal Structure Determination

Related Article: Eswaran Chinnaraja, Rajendran Arunachalam, Renjith S. Pillai, Anssi Peuronen, Kari Rissanen, Palani S. Subramanian|2020|Appl.Organomet.Chem.|34|e5666|doi:10.1002/aoc.5666

CCDC 1818911: Experimental Crystal Structure Determination

Related Article: Xiang‐Yu Chen, Sun Li, Qiang Liu, Mukesh Kumar , Anssi Peuronen, Kari Rissanen, Dieter Enders|2018|Chem.-Eur.J.|24|9735|doi:10.1002/chem.201802420

CCDC 2158304: Experimental Crystal Structure Determination

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CCDC 1534938: Experimental Crystal Structure Determination

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CCDC 1023705: Experimental Crystal Structure Determination

Related Article: Anssi Peuronen, Heikki Rinta, Manu Lahtinen|2015|CrystEngComm|17|1736|doi:10.1039/C4CE01866D

CCDC 1516205: Experimental Crystal Structure Determination

Related Article: Sun Lia, Lei Wang, Pankaj Chauhan, Anssi Peuronen, Kari Rissanen, Dieter Enders|2017|Synthesis|49|1808|doi:10.1055/s-0036-1588381

CCDC 1959437: Experimental Crystal Structure Determination

Related Article: Pasi Salonen, Anssi Peuronen, Ari Lehtonen|2020|Inorg.Chim.Acta|503|119414|doi:10.1016/j.ica.2020.119414

CCDC 1023709: Experimental Crystal Structure Determination

Related Article: Anssi Peuronen, Heikki Rinta, Manu Lahtinen|2015|CrystEngComm|17|1736|doi:10.1039/C4CE01866D

CCDC 2002644: Experimental Crystal Structure Determination

Related Article: Esko Saloj��rvi, Anssi Peuronen, Jani Moilanen, Hannu Huhtinen, Johan Lind��n, Akseli Mansikkam��ki, Mika Lastusaari, Ari Lehtonen|2021|Dalton Trans.|50|15831|doi:10.1039/D1DT01607E

CCDC 1901282: Experimental Crystal Structure Determination

Related Article: Rakesh Puttreddy, Anssi Peuronen, Manu Lahtinen, Kari Rissanen|2019|Cryst.Growth Des.|19|3815|doi:10.1021/acs.cgd.9b00284

CCDC 1855149: Experimental Crystal Structure Determination

Related Article: Pasi Salonen, Anssi Peuronen, Jari Sinkkonen, Ari Lehtonen|2019|Inorg.Chim.Acta|489|108|doi:10.1016/j.ica.2019.02.011

CCDC 1519804: Experimental Crystal Structure Determination

Related Article: Petra Vasko, Juha Hurmalainen, Akseli Mansikkamäki, Anssi Peuronen, Aaron Mailman, Heikki M. Tuononen|2017|Dalton Trans.|46|16004|doi:10.1039/C7DT03243A

CCDC 1901276: Experimental Crystal Structure Determination

Related Article: Rakesh Puttreddy, Anssi Peuronen, Manu Lahtinen, Kari Rissanen|2019|Cryst.Growth Des.|19|3815|doi:10.1021/acs.cgd.9b00284

CCDC 1518784: Experimental Crystal Structure Determination

Related Article: Juha Hurmalainen, Akseli Mansikkamäki, Ian S. Morgan, Anssi Peuronen, Heikki M. Tuononen|2017|Dalton Trans.|46|1377|doi:10.1039/C6DT04504A

CCDC 996586: Experimental Crystal Structure Determination

Related Article: Balasubramaniam Arul Prakasam, Manu Lahtinen, Anssi Peuronen, Manickavachagam Muruganandham, Erkki Kolehmainen, Esa Haapaniemi, Mika Sillanpaa|2014|Polyhedron|81|588|doi:10.1016/j.poly.2014.06.059

CCDC 1569236: Experimental Crystal Structure Determination

Related Article: Pasi Salonen, Anssi Peuronen, Ari Lehtonen|2017|Inorg.Chem.Commun.|86|165|doi:10.1016/j.inoche.2017.10.017

CCDC 1821336: Experimental Crystal Structure Determination

Related Article: Rakesh Puttreddy, Carolina von Essen, Anssi Peuronen, Manu Lahtinen, Kari Rissanen|2018|CrystEngComm|20|1954|doi:10.1039/C8CE00209F

CCDC 990214: Experimental Crystal Structure Determination

Related Article: Balasubramaniam Arul Prakasam, Manu Lahtinen, Anssi Peuronen, Manickavachagam Muruganandham, Erkki Kolehmainen, Esa Haapaniemi, Mika Sillanpää|2015|Inorg.Chim.Acta|425|239|doi:10.1016/j.ica.2014.09.016

CCDC 996587: Experimental Crystal Structure Determination

Related Article: Balasubramaniam Arul Prakasam, Manu Lahtinen, Anssi Peuronen, Manickavachagam Muruganandham, Erkki Kolehmainen, Esa Haapaniemi, Mika Sillanpaa|2014|Polyhedron|81|588|doi:10.1016/j.poly.2014.06.059

CCDC 1901283: Experimental Crystal Structure Determination

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CCDC 2211278: Experimental Crystal Structure Determination

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CCDC 1519805: Experimental Crystal Structure Determination

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CCDC 947464: Experimental Crystal Structure Determination

Related Article: Anssi Peuronen, Esa Lehtimäki, and Manu Lahtinen|2013|Cryst.Growth Des.|13|4615|doi:10.1021/cg401246n

CCDC 1901278: Experimental Crystal Structure Determination

Related Article: Rakesh Puttreddy, Anssi Peuronen, Manu Lahtinen, Kari Rissanen|2019|Cryst.Growth Des.|19|3815|doi:10.1021/acs.cgd.9b00284

CCDC 1406085: Experimental Crystal Structure Determination

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CCDC 1027704: Experimental Crystal Structure Determination

Related Article: Balasubramaniam Arul Prakasam, Manu Lahtinen, Anssi Peuronen, Manickavachagam Muruganandham, Erkki Kolehmainen, Esa Haapaniemi, Mika Sillanpää|2016|J.Mol.Struct.|1108|195|doi:10.1016/j.molstruc.2015.11.076

CCDC 1901272: Experimental Crystal Structure Determination

Related Article: Rakesh Puttreddy, Anssi Peuronen, Manu Lahtinen, Kari Rissanen|2019|Cryst.Growth Des.|19|3815|doi:10.1021/acs.cgd.9b00284

CCDC 1901285: Experimental Crystal Structure Determination

Related Article: Rakesh Puttreddy, Anssi Peuronen, Manu Lahtinen, Kari Rissanen|2019|Cryst.Growth Des.|19|3815|doi:10.1021/acs.cgd.9b00284

CCDC 978171: Experimental Crystal Structure Determination

Related Article: Anssi Peuronen, Samu Forsblom, Manu Lahtinen|2014|Chem.Commun.|50|5469|doi:10.1039/C3CC49663E

CCDC 2157985: Experimental Crystal Structure Determination

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CCDC 1844318: Experimental Crystal Structure Determination

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CCDC 2211279: Experimental Crystal Structure Determination

Related Article: Anssi Peuronen, Anni Taponen, Elina Kalenius, Ari Lehtonen, Manu Lahtinen|2023|Angew.Chem.,Int.Ed.|62|e202215689|doi:10.1002/anie.202215689

CCDC 2002643: Experimental Crystal Structure Determination

Related Article: Esko Saloj��rvi, Anssi Peuronen, Jani Moilanen, Hannu Huhtinen, Johan Lind��n, Akseli Mansikkam��ki, Mika Lastusaari, Ari Lehtonen|2021|Dalton Trans.|50|15831|doi:10.1039/D1DT01607E

CCDC 947462: Experimental Crystal Structure Determination

Related Article: Anssi Peuronen, Esa Lehtimäki, and Manu Lahtinen|2013|Cryst.Growth Des.|13|4615|doi:10.1021/cg401246n

CCDC 1536800: Experimental Crystal Structure Determination

Related Article: Petra Vasko, Juha Hurmalainen, Akseli Mansikkamäki, Anssi Peuronen, Aaron Mailman, Heikki M. Tuononen|2017|Dalton Trans.|46|16004|doi:10.1039/C7DT03243A

CCDC 1850751: Experimental Crystal Structure Determination

Related Article: Eswaran Chinnaraja, Rajendran Arunachalam, Renjith S. Pillai, Anssi Peuronen, Kari Rissanen, Palani S. Subramanian|2020|Appl.Organomet.Chem.|34|e5666|doi:10.1002/aoc.5666

CCDC 2157989: Experimental Crystal Structure Determination

Related Article: Pasi Salonen, Jörg A. Schachner, Anssi Peuronen, Manu Lahtinen, Ferdinand Belaj, Nadia Carmen Mösch-Zanetti, Ari Lehtonen|2023|Mol.Catal.|540|113034|doi:10.1016/j.mcat.2023.113034

CCDC 1821329: Experimental Crystal Structure Determination

Related Article: Rakesh Puttreddy, Carolina von Essen, Anssi Peuronen, Manu Lahtinen, Kari Rissanen|2018|CrystEngComm|20|1954|doi:10.1039/C8CE00209F

CCDC 1855150: Experimental Crystal Structure Determination

Related Article: Pasi Salonen, Anssi Peuronen, Jari Sinkkonen, Ari Lehtonen|2019|Inorg.Chim.Acta|489|108|doi:10.1016/j.ica.2019.02.011

CCDC 1986213: Experimental Crystal Structure Determination

Related Article: Esko Saloj��rvi, Anssi Peuronen, Manu Lahtinen, Hannu Huhtinen, Leonid S. Vlasenko, Mika Lastusaari, Ari Lehtonen|2020|Molecules|25|2531|doi:10.3390/molecules25112531

CCDC 1857204: Experimental Crystal Structure Determination

Related Article: A. Sunil Kumar, Jyothi Kudva, Manu Lahtinern, Anssi Peuronen, Rajitha Sadashiva, Damodara Naral|2019|J.Mol.Struct.|1190|29|doi:10.1016/j.molstruc.2019.04.050

CCDC 1855151: Experimental Crystal Structure Determination

Related Article: Pasi Salonen, Anssi Peuronen, Jari Sinkkonen, Ari Lehtonen|2019|Inorg.Chim.Acta|489|108|doi:10.1016/j.ica.2019.02.011

CCDC 1986216: Experimental Crystal Structure Determination

Related Article: Esko Saloj��rvi, Anssi Peuronen, Manu Lahtinen, Hannu Huhtinen, Leonid S. Vlasenko, Mika Lastusaari, Ari Lehtonen|2020|Molecules|25|2531|doi:10.3390/molecules25112531

CCDC 1822427: Experimental Crystal Structure Determination

Related Article: Ida Mattsson, Manu Lahtinen, Anssi Peuronen, Abhijit Sau, Andreas Gunell, Tiina Saloranta-Simell, Reko Leino|2018|Cryst.Growth Des.|18|3151|doi:10.1021/acs.cgd.8b00263

CCDC 1822426: Experimental Crystal Structure Determination

Related Article: Ida Mattsson, Manu Lahtinen, Anssi Peuronen, Abhijit Sau, Andreas Gunell, Tiina Saloranta-Simell, Reko Leino|2018|Cryst.Growth Des.|18|3151|doi:10.1021/acs.cgd.8b00263

CCDC 947463: Experimental Crystal Structure Determination

Related Article: Anssi Peuronen, Esa Lehtimäki, and Manu Lahtinen|2013|Cryst.Growth Des.|13|4615|doi:10.1021/cg401246n

CCDC 1850752: Experimental Crystal Structure Determination

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CCDC 1554864: Experimental Crystal Structure Determination

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CCDC 1543566: Experimental Crystal Structure Determination

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CCDC 2157988: Experimental Crystal Structure Determination

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CCDC 1821328: Experimental Crystal Structure Determination

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CCDC 2211276: Experimental Crystal Structure Determination

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CCDC 1986214: Experimental Crystal Structure Determination

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CCDC 1555938: Experimental Crystal Structure Determination

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CCDC 1023706: Experimental Crystal Structure Determination

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CCDC 1821327: Experimental Crystal Structure Determination

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CCDC 1519808: Experimental Crystal Structure Determination

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CCDC 996588: Experimental Crystal Structure Determination

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CCDC 1821330: Experimental Crystal Structure Determination

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CCDC 1901271: Experimental Crystal Structure Determination

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CCDC 1519806: Experimental Crystal Structure Determination

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CCDC 2129454: Experimental Crystal Structure Determination

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CCDC 1537523: Experimental Crystal Structure Determination

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CCDC 2062703: Experimental Crystal Structure Determination

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CCDC 1429012: Experimental Crystal Structure Determination

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CCDC 1537522: Experimental Crystal Structure Determination

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CCDC 1901275: Experimental Crystal Structure Determination

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CCDC 1821335: Experimental Crystal Structure Determination

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CCDC 2109451: Experimental Crystal Structure Determination

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CCDC 978172: Experimental Crystal Structure Determination

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CCDC 2157986: Experimental Crystal Structure Determination

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CCDC 2157987: Experimental Crystal Structure Determination

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CCDC 1429016: Experimental Crystal Structure Determination

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CCDC 2157984: Experimental Crystal Structure Determination

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CCDC 1536801: Experimental Crystal Structure Determination

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CCDC 1027705: Experimental Crystal Structure Determination

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CCDC 1821331: Experimental Crystal Structure Determination

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CCDC 947465: Experimental Crystal Structure Determination

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CCDC 1901281: Experimental Crystal Structure Determination

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CCDC 1023708: Experimental Crystal Structure Determination

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CCDC 1986215: Experimental Crystal Structure Determination

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CCDC 1527542: Experimental Crystal Structure Determination

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CCDC 1821332: Experimental Crystal Structure Determination

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CCDC 1023704: Experimental Crystal Structure Determination

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CCDC 1901273: Experimental Crystal Structure Determination

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CCDC 1519807: Experimental Crystal Structure Determination

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CCDC 1901274: Experimental Crystal Structure Determination

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CCDC 1431928: Experimental Crystal Structure Determination

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CCDC 1901280: Experimental Crystal Structure Determination

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CCDC 1429014: Experimental Crystal Structure Determination

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CCDC 1901277: Experimental Crystal Structure Determination

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CCDC 1901270: Experimental Crystal Structure Determination

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CCDC 1821337: Experimental Crystal Structure Determination

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CCDC 1913766: Experimental Crystal Structure Determination

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CCDC 1027703: Experimental Crystal Structure Determination

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CCDC 1429015: Experimental Crystal Structure Determination

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CCDC 1574958: Experimental Crystal Structure Determination

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CCDC 1857205: Experimental Crystal Structure Determination

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CCDC 2211277: Experimental Crystal Structure Determination

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CCDC 1825936: Experimental Crystal Structure Determination

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CCDC 1844317: Experimental Crystal Structure Determination

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CCDC 1913765: Experimental Crystal Structure Determination

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CCDC 992712: Experimental Crystal Structure Determination

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CCDC 1987795: Experimental Crystal Structure Determination

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CCDC 2129453: Experimental Crystal Structure Determination

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CCDC 1023707: Experimental Crystal Structure Determination

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CCDC 1518783: Experimental Crystal Structure Determination

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CCDC 1554862: Experimental Crystal Structure Determination

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