0000000001304353
AUTHOR
Catalin Maxim
The odd association of a C3h trisamidinium cation and tosylate anion with a series of linear oxalate-bridged trinuclear heterometallic complexes
A series of six isostructural heterometallic trinuclear oxalate-bridged complexes of the formula (TDbenz)(2)(TsO)(2)[M(II)(H(2)O)(2){(μ-ox)M(III)(ox)(2)}(2)]·6H(2)O·2CH(3)OH (TDbenz = 1,3,5-tris[2-(1,3-diazolinium)]benzene; TsO = 4-methylbenzenesulfonate; ox = oxalate; M(III) = Fe, M(II) = Mn (1), Fe (2), Co (3); M(III) = Cr, M(II) = Mn (4), Fe (5), Co (6)) have been synthesized from (NH(4))(3)[M(III)(ox)(3)]·3H(2)O, the chloride salts of the divalent metal ions and the tosylate salt of 1,3,5-tris[2-(1,3-diazolinium)]benzene (trisamidinium). Whereas the crystal structures of compounds 2, 3, 4 and 5 have been investigated by single-crystal X-ray diffraction, the structures of 1 and 6 have be…
Polynuclear copper(II) complexes with hexadentate Schiff base directed by the counter ion. Syntheses, crystal structures and magnetic properties
Abstract Four new complexes, [Cu 9 L 6 ( µ 3 -ClO 4 ) 2 ](ClO 4 ) 4 ·4CHCl 3 1 , [Cu 3 L 2 (H 2 O) 2 ](ClO 4 ) 2 ·3H 2 O 2 , [Cu 6 L 4 (N 3 ) 2 ](ClO 4 ) 2 3 and [Cu 2 L(CH 3 COO) 2 ] 4 , where H 2 L stands for the Schiff base N , N ′-bis[(2-hydroxybenzilideneamino)-propyl]-piperazine, were obtained and structurally characterized. Compounds 1 , 2 and 3 contain the Cu 3 L 2 2+ entities in which L 2− acts in an unsymmetrical mode with N 3 O donor set wrapped around marginal copper(II) and with the remained NO sets bound to the central copper ion. The marginal copper(II) ions are in distorted square pyramidal environment, whereas that of the central one is square planar. In 1 , the peripheral …
A two-dimensional coordination polymer constructed from binuclear copper(II) metalloligands and manganese(II) ions: Synthesis, crystal structure and magnetic properties
Abstract The self-assembly process between the binuclear [Cu2(HL)(L)]− complex and the manganese(II) ion affords a two-dimensional coordination polymer of formula [Mn{Cu2(HL)(L)}2(H2O)2]n (1) (H3L = 3-hydroxyiminomethylsalicylic acid) where parallel ladder-like motifs of defective double cubanes of bis(phenoxo)dicopper(II) units as rods and anti-syn carboxylato bridges as rungs act as ligands towards tetraaqua-manganese(II) entities through the deprotonated oxime groups. The topology of 1 is compared with the one of another compound, [Mn{Cu2(HL)(L)}2(H2O)4]·4H2O·2DMF (1′) which was obtained in different conditions by Okawa et al. (J. Chem. Soc., Dalton Trans. (2001) 3119). Magnetic suscepti…
Heterometallic CoII-CoIII-MII alkoxido-bridged heptanuclear motifs (M = Cu, Zn). Syntheses, crystal structures and magnetic properties
Two new alkoxido-bridged heterometallic complexes of formula [CoIICoIII 3CuII 3(dea)6(CH3COO)3](ClO4)0.75(CH3COO)1.25 (1) and [CoII 2CoIII 2ZnII 3(tea)2(piv)6(CH3O)2(OH)2(CH3OH)2]·H2O 2 (H2dea=diethanolamine, H3tea=triethanolamine and Hpiv=pivalic acid) have been assembled using aminoalcohol ligands. The cationic core in 1 possesses a threefold crystallographic axis, and it exhibits a set of three copper(II), one cobalt(II) and three cobalt(III) ions arranged as a hexagon of alternating copper(II) and cobalt(III) ions around the central cobalt(II) ion. Each edge of the hexagon is defined by a double alkoxido bridge, the outer one being bis-monodentate with copper(II)-cobalt(III) pair wherea…
New cyanide-bridged Mn(III)-M(III) heterometallic dinuclear complexes constructed from [M(III)(AA)(CN)4]- building blocks (M = Cr and Fe): synthesis, crystal structures and magnetic properties.
Three Mn(III)-M(III) (M = Cr and Fe) dinuclear complexes have been obtained by assembling [Mn(III)(SB)(H(2)O)](+) and [M(III)(AA)(CN)(4)](-) ions, where SB is the dianion of the Schiff-base resulting from the condensation of 3-methoxysalicylaldehyde with ethylenediamine (3-MeOsalen(2-)) or 1,2-cyclohexanediamine (3-MeOsalcyen(2-)): [Mn(3-MeOsalen)(H(2)O)(µ-NC)Cr(bipy)(CN)(3)]·2H(2)O (1), [Mn(3-MeOsalen)(H(2)O)(µ-NC)Cr(ampy)(CN)(3)][Mn(3-MeOsalen)(H(2)O)(2)]ClO(4)·2H(2)O (2) and [Mn(3-MeOsalcyen)(H(2)O)(µ-NC)Fe(bpym)(CN)(3)]·3H(2)O (3) (bipy = 2,2'-bipyridine, ampy = 2-aminomethylpyridine and bpym = 2,2'-bipyrimidine). The [M(AA)(CN)(4)](-) unit in 1-3 acts as a monodentate ligand towards th…
Ascorbic acid decomposition into oxalate ions: a simple synthetic route towards oxalato-bridged heterometallic 3d-4f clusters.
Two types of oxalato-bridged heterometallic 3d–4f dodeca- and hexanuclear compounds have been obtained by connecting six bi- and, respectively, trinuclear moieties through oxalato bridges arising from the slow decomposition of the L-ascorbic acid.
New complexes of Ni(II) and Co(III) with a Schiff-base ligand derived from o -vanillin. Crystal structure, magnetic and catalytic properties of a dissymmetric binuclear nickel(II) complex
Abstract A binuclear complex, [Ni2L2(NO3)(H2O)(CH3CN)]ClO4·CH3CN (1), has been obtained using a Schiff-base ligand (HL) derived from o-vanillin and 4-(2-aminoethyl)morpholine. The crystal structure of 1 has been solved. Both Ni(II) ions are hexacoordinated, but they display different coordination spheres. The exchange interaction between the two nickel ions is antiferromagnetic (J = −7.9 ± 0.2 cm−1; H = −JS1S2), in line with the DFT calculations. Compound 1 has been tested as a catalyst in the epoxidation of various olefins. The reaction of the same ligand with a mixture of cobalt(II) perchlorate and nitrate affords a mononuclear Co(III) complex, [CoL2(H2O)]ClO4·CH3OH (2).
One-dimensional coordination polymers constructed from di- and trinuclear {3d–4f} tectons. A new useful spacer in crystal engineering: 1,3-bis(4-pyridyl)azulene
Four new heterometallic 3d–4f complexes have been obtained using bi- and trinuclear building blocks: 1∞[Ni(L1)Gd(NO3)3(azbbpy)]·CH3CN (1), [Zn(L1)Eu(NO3)3(azbbpy)]·H2O (2), 1∞[(CuL2)2Gd(NO3)2(dca)] 3 and 1∞[(NiL2)2Dy(H2O)4(oxy-bbz)]NO3·3H2O (4), [H2L1 = 1,3-propanediyl-bis(2-iminomethylene-6-methoxyphenol), H2L2 = 2,6-di(acetoacetyl)pyridine, azbbpy = 1,3-bis(4-pyridyl)azulene, dca− = dicyanamide anion, and oxy-bbz = the dianion of the 4,4′-oxy-bis(benzoic) acid]. 1 and 2 represent the first complexes containing 1,3-bis(4-pyridyl)azulene as a ligand. 1, 3, and 4 are one-dimensional coordination polymers constructed from heterometallic nodes connected by the exo-dentate ligands. Helical chai…
CCDC 1049500: Experimental Crystal Structure Determination
Related Article: Alina S. Dinca, Sergiu Shova, Adrian E. Ion, Catalin Maxim, Francesc Lloret, Miguel Julve, Marius Andruh|2015|Dalton Trans.|44|7148|doi:10.1039/C5DT00778J
CCDC 1049932: Experimental Crystal Structure Determination
Related Article: Alina S. Dinca, Sergiu Shova, Adrian E. Ion, Catalin Maxim, Francesc Lloret, Miguel Julve, Marius Andruh|2015|Dalton Trans.|44|7148|doi:10.1039/C5DT00778J
CCDC 1550041: Experimental Crystal Structure Determination
Related Article: Eliza Martin, Violeta Tudor, Augustin M. Madalan, Catalin Maxim, Floriana Tuna, Francesc Lloret, Miguel Julve, Marius Andruh|2017|Inorg.Chim.Acta|475|98|doi:10.1016/j.ica.2017.05.077
CCDC 1049499: Experimental Crystal Structure Determination
Related Article: Alina S. Dinca, Sergiu Shova, Adrian E. Ion, Catalin Maxim, Francesc Lloret, Miguel Julve, Marius Andruh|2015|Dalton Trans.|44|7148|doi:10.1039/C5DT00778J
CCDC 1049501: Experimental Crystal Structure Determination
Related Article: Alina S. Dinca, Sergiu Shova, Adrian E. Ion, Catalin Maxim, Francesc Lloret, Miguel Julve, Marius Andruh|2015|Dalton Trans.|44|7148|doi:10.1039/C5DT00778J
CCDC 1049546: Experimental Crystal Structure Determination
Related Article: Alina S. Dinca, Sergiu Shova, Adrian E. Ion, Catalin Maxim, Francesc Lloret, Miguel Julve, Marius Andruh|2015|Dalton Trans.|44|7148|doi:10.1039/C5DT00778J
CCDC 1558560: Experimental Crystal Structure Determination
Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024
CCDC 949950: Experimental Crystal Structure Determination
Related Article: Adrian E. Ion, Simona Nica, Augustin M. Madalan, Catalin Maxim, Miguel Julve, Francesc Lloret, Marius Andruh|2014|CrystEngComm|16|319|doi:10.1039/C3CE41592A
CCDC 1558856: Experimental Crystal Structure Determination
Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024
CCDC 949949: Experimental Crystal Structure Determination
Related Article: Adrian E. Ion, Simona Nica, Augustin M. Madalan, Catalin Maxim, Miguel Julve, Francesc Lloret, Marius Andruh|2014|CrystEngComm|16|319|doi:10.1039/C3CE41592A
CCDC 1558855: Experimental Crystal Structure Determination
Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024
CCDC 949948: Experimental Crystal Structure Determination
Related Article: Adrian E. Ion, Simona Nica, Augustin M. Madalan, Catalin Maxim, Miguel Julve, Francesc Lloret, Marius Andruh|2014|CrystEngComm|16|319|doi:10.1039/C3CE41592A
CCDC 1049497: Experimental Crystal Structure Determination
Related Article: Alina S. Dinca, Sergiu Shova, Adrian E. Ion, Catalin Maxim, Francesc Lloret, Miguel Julve, Marius Andruh|2015|Dalton Trans.|44|7148|doi:10.1039/C5DT00778J
CCDC 1550042: Experimental Crystal Structure Determination
Related Article: Eliza Martin, Violeta Tudor, Augustin M. Madalan, Catalin Maxim, Floriana Tuna, Francesc Lloret, Miguel Julve, Marius Andruh|2017|Inorg.Chim.Acta|475|98|doi:10.1016/j.ica.2017.05.077
CCDC 1558561: Experimental Crystal Structure Determination
Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024
CCDC 1049498: Experimental Crystal Structure Determination
Related Article: Alina S. Dinca, Sergiu Shova, Adrian E. Ion, Catalin Maxim, Francesc Lloret, Miguel Julve, Marius Andruh|2015|Dalton Trans.|44|7148|doi:10.1039/C5DT00778J
CCDC 949947: Experimental Crystal Structure Determination
Related Article: Adrian E. Ion, Simona Nica, Augustin M. Madalan, Catalin Maxim, Miguel Julve, Francesc Lloret, Marius Andruh|2014|CrystEngComm|16|319|doi:10.1039/C3CE41592A