0000000001305083
AUTHOR
Maria Vanda Marinho
On the magneto-structural role of the coordinating anion in oxamato-bridged copper(ii) derivatives
We herein present the synthesis, spectroscopic analysis, description of the crystal structures and magnetic properties of four new complexes of the formula [{Cu(opba)(H2O)1.2}{Cu(dmphen)(SCN)}2]·dmf (1), [{Cu(opba)}2{Cu(dmphen)Cl}4]·1.5dmf·2.5dmso (2), [{Cu(opba)}2{Cu(dmphen)Br}4]·dmf·2.3dmso (3) and [{Cu(opba)}{Cu(dmphen)(dca)}2]n (4) [H4opba = N,N′-1,2-phenylenebis(oxamic acid), dmphen = 2,9-dimethyl-1,10-phenanthroline and dca = dicyanamide anion]. 1 is a neutral tricopper(II) complex where an inner [Cu(opba)]2− fragment adopts a bis-bidentate coordination mode towards two outer [Cu(dmphen)(NCS)]+ units. 2 and 3 are bis-trinuclear species where two oxamato-bridged [Cu(opba){Cu(dmphen)X}2…
A two-dimensional oxamate- and oxalate-bridged Cu(II)Mn(II) motif: crystal structure and magnetic properties of (Bu4N)2[Mn2{Cu(opba)}2ox].
A new compound of formula (Bu4N)2[Mn2{Cu(opba)}2ox] (1) [Bu4N(+) = tetra-n-butylammonium cation, H4opba = 1,2-phenylenebis(oxamic acid), and H2ox = oxalic acid] has been synthesized and magneto-structurally investigated. The reaction of manganese(II) acetate, [Cu(opba)](2-), and ox(2-) in dimethyl sulfoxide yielded single crystals of 1. The structure of 1 consists of heterobimetallic oxamato-bridged Cu(II)Mn(II) chains which are connected through bis-bidentate oxalate coordinated to the manganese(II) ions to afford anionic heterobimetallic layers of 6(3)-hcb net topology. The layers are interleaved by n-Bu4N(+) counterions. Each copper(II) ion in 1 is four-coordinate in a square planar envi…
Polymorphic Derivatives of NiII and CoII Mesocates with 3D Networks and “Brick and Mortar” Structures: Preparation, Structural Characterization, and Cryomagnetic Investigation of New Single-Molecule Magnets
In this work we describe the preparation, spectroscopic, thermal and structural characterization, and cryomagnetic investigation of four new polymorphic derivatives of the [M2(H2mpba)3]2– mesocate ...
Copper(II) assembling with bis(2-pyridylcarbonyl)amidate and N,N'-2,2-phenylenebis(oxamate).
We herein present the synthesis and X-ray structures of five copper(II) complexes of formulae [Cu(bpca)(CF3SO3)(H2O)]·H2O (1), [Cu(bpca)(Phpr)(H2O)]·3/2H2O (2), {[Cu(bpca)]2[Cu(opba)(H2O)]}·H2O (3), {[Cu(bpca)]2(H2opba)}2·6H2O (4) and [Cu(bpca)(EtH2opba)]n (5), where bpca = bis(2-pyridylcarbonyl)amidate, Phpr = 3-phenylpropionate, CF3SO3(−) = triflate (anion of the trifluoromethanesulphonic acid), H4opba = N,N′-1,2-phenylenebis(oxamic acid), and EtH3opba = monoethyl ester derivative of the H4opba. 1 and 2 are mononuclear copper(II) complexes where the copper atom is five-coordinate in distorted square pyramidal surroundings with a tridentate bpca and a water molecule (1)/carboxylate oxygen …
Building-up host-guest helicate motifs and chains: a magneto-structural study of new field-induced cobalt-based single-ion magnets.
In this work, we present the synthetic pathway, a refined structural description, complete solid-state characterization and the magnetic properties of four new cobalt(II) compounds of formulas [Co(H2O)6][Co2(H2mpba)3]·2H2O·0.5dmso (1), [Co(H2O)6][Co2(H2mpba)3]·3H2O·0.5dpss (2), [Co2(H2mpba)2(H2O)4]n·4nH2O (3), and [Co2(H2mpba)2(CH3OH)2(H2O)2]n·0.5nH2O·2ndpss (4) [dpss = 2,2′-dipyridyldisulfide and H4mpba = 1,3-phenylenebis(oxamic) acid], where 2 and 4 were obtained from [Co(dpss)Cl2] (Pre-I) as the source of cobalt(II). All four compounds are air-stable and were prepared under ambient conditions. 1 and 2 were obtained from a slow diffusion method [cobalt(II) : H2mpba2− molar ratio used 1 : …
Study of the complex formation between the [Cu(bpca)]+ secondary building unit and the aromatic N donors 2,3,5,6-tetra(2-pyridyl)pyrazine (tppz) and 1,3-bis(4-pyridyl)propane (bpp)
Two new complexes of the formula [{Cu(bpca)}2(μ-tppz)](NO3)2·5H2O (1) and [Cu(bpca)(H2O)(ClO4)(μ-bpp)Cu(bpca)(H2O)2]ClO4·H2O (2) [tppz = 2,3,5,6-tetra(2-pyridyl)pyrazine and bpp = 1,3-bis(4-pyridyl)propane] have been prepared by the reaction of the [Cu(bpca)]+ [Hbpca = bis(2-pyridylcarbonyl)imide] building block and the tppz and bpp N donors. An unusual coordination mode of the tppz ligand was observed in 1, which functions as a bis(bidentate) ligand to two copper(II) atoms each coordinated to a nitrogen atom of the pyrazine moiety and a pyridyl nitrogen atom. This compound presents a layered structure of alternating anionic (ca. 1.6 A) and cationic (ca. 10 A) slices, providing the opportun…
Photoluminescent and Slow Magnetic Relaxation Studies on Lanthanide(III)-2,5-pyrazinedicarboxylate Frameworks
In the series described in this work, the hydrothermal synthesis led to oxidation of the 5-methyl-pyrazinecarboxylate anion to the 2,5-pyrazinedicarboxylate dianion (2,5-pzdc) allowing the preparation of three-dimensional (3D) lanthanide(III) organic frameworks of formula {[Ln2(2,5-pzdc)3(H2O)4]·6H2O}n [Ln = Ce (1), Pr (2), Nd (3), and Eu (4)] and {[Er2(2,5-pzdc)3(H2O)4]·5H2O}n (5). Single-crystal X-ray diffraction on 1–5 reveals that they crystallize in the triclinic system, P1 space group with the series 1–4 being isostructural. The crystal structure of the five compounds are 3D with the lanthanide(III) ions linked through 2,5-pzdc2– dianions acting as two- and fourfold connectors, buildi…
Magneto-structural versatility of copper(II)-3-phenylpropionate coordination polymers with N-donor coligands.
A novel series of copper(II) coordination polymers [Cu2(O2CC8H9)4(pyz)]n (1), [Cu2(O2CC8H9)4(dps)]n (2), {[Cu(O2CC8H9)2(dps)(H2O)]·H2O}n (3), {[NaCu(O2CC8H9)2(bpm)(NO3)]·H2O}n (4), and [Cu4(O2CC8H9)6(OH)2(bpp)2]n (5) [O2CC8H9− = 3-phenylpropionate anion, pyz = pyrazine, dps = di(4-pyridyl)sulfide, bpm = 2,2′-bipyrimidine, and bpp = 1,3-bis(4-pyridyl)propane] have been synthesized and magneto-structurally investigated. Compounds 1 and 2 belong to a large group of copper(II) carboxylates where bis-monodentate pyz (1) and dps (2) ligands connect the paddle-wheel [CuII2(μ-O2CC8H9)4] units leading to alternating copper(II) chains. The structure of 3 consists of uniform chains of trans-[CuII(O2CC…
Solvothermal synthesis, crystal structure and magnetic properties of homometallic Co(II) and Cu(II) chains with double di(4-pyridyl)sulfide as bridges
Abstract Two new coordination polymers {[Co(μ-4,4′-dps)2(H2O)2](NO3)2·2(4,4′-dps)·4H2O}n (1) and {[Cu(μ-4,4′-dps)2(H2O)2](NO3)2·2H2O}n (2) [4,4′-dps = di(4-pyridyl)sulfide] have been synthesized by solvothermal reactions between the nitrate salts of cobalt(II) (1) and copper(II) (2) and the 4,4′-dps molecule. Compounds 1 and 2 have been characterized by elemental analysis, thermal analysis (TG/DTA), vibrational spectroscopy, single crystal X-ray diffraction analysis and variable-temperature magnetic measurements. Compounds 1 and 2 are cationic chain compounds of formula {[M(μ-4,4′-dps)2(H2O)2]n2n+ [M = Co(II) (1) and Cu(II) (2)] with double 4,4′-dps bridges, uncoordinated nitrate anions, an…
CCDC 1898457: Experimental Crystal Structure Determination
Related Article: Ludmila dos S. Mariano, Iara M. L. Rosa, Nathália R. De Campos, Antônio C. Doriguetto, Danielle F. Dias, Walace D. do Pim, Ana Karoline S.M. Valdo, Felipe T. Martins, Marcos A. Ribeiro, Elgte E. B. De Paula, Emerson F. Pedroso, Humberto O. Stumpf, Joan Cano, Francesc Lloret, Miguel Julve, Maria Vanda Marinho|2020|Cryst.Growth Des.|20|2462|doi:10.1021/acs.cgd.9b01638
CCDC 1898455: Experimental Crystal Structure Determination
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CCDC 1510396: Experimental Crystal Structure Determination
Related Article: Maria Vanda Marinho, Daniella O. Reis, Willian X. C. Oliveira, Lippy F. Marques, Humberto O. Stumpf, Mariadel Déniz, Jorge Pasán, Catalina Ruiz-Pérez, Joan Cano, Francesc Lloret, and Miguel Julve|2017|Inorg.Chem.|56|2108|doi:10.1021/acs.inorgchem.6b02774
CCDC 1883575: Experimental Crystal Structure Determination
Related Article: Nathália R. de Campos, Cintia A. Simosono, Iara M. Landre Rosa, Rafaela M. R. da Silva, Antônio C. Doriguetto, Walace D. do Pim, Tatiana R. Gomes Simões, Ana Karoline S. M. Valdo, Felipe T. Martins, Charlie V. Sarmiento, Wallace C. Nunes, Guilherme P. Guedes, Emerson F. Pedroso, Cynthia L. M. Pereira, Humberto O. Stumpf, Francesc Lloret, Miguel Julve, Maria Vanda Marinho|2021|Dalton Trans.|50|10707|doi:10.1039/D1DT01693H
CCDC 1901771: Experimental Crystal Structure Determination
Related Article: Tatiana R. G. Simões, Maria Vanda Marinho, Jorge Pasán, Humberto O. Stumpf, Nicolás Moliner, Francesc Lloret, Miguel Julve|2019|Dalton Trans.|48|10260|doi:10.1039/C9DT01277J
CCDC 1510397: Experimental Crystal Structure Determination
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CCDC 1883574: Experimental Crystal Structure Determination
Related Article: Nathália R. de Campos, Cintia A. Simosono, Iara M. Landre Rosa, Rafaela M. R. da Silva, Antônio C. Doriguetto, Walace D. do Pim, Tatiana R. Gomes Simões, Ana Karoline S. M. Valdo, Felipe T. Martins, Charlie V. Sarmiento, Wallace C. Nunes, Guilherme P. Guedes, Emerson F. Pedroso, Cynthia L. M. Pereira, Humberto O. Stumpf, Francesc Lloret, Miguel Julve, Maria Vanda Marinho|2021|Dalton Trans.|50|10707|doi:10.1039/D1DT01693H
CCDC 1883576: Experimental Crystal Structure Determination
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CCDC 1901770: Experimental Crystal Structure Determination
Related Article: Tatiana R. G. Simões, Maria Vanda Marinho, Jorge Pasán, Humberto O. Stumpf, Nicolás Moliner, Francesc Lloret, Miguel Julve|2019|Dalton Trans.|48|10260|doi:10.1039/C9DT01277J
CCDC 1898454: Experimental Crystal Structure Determination
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CCDC 1993352: Experimental Crystal Structure Determination
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CCDC 1510399: Experimental Crystal Structure Determination
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CCDC 1901769: Experimental Crystal Structure Determination
Related Article: Tatiana R. G. Simões, Maria Vanda Marinho, Jorge Pasán, Humberto O. Stumpf, Nicolás Moliner, Francesc Lloret, Miguel Julve|2019|Dalton Trans.|48|10260|doi:10.1039/C9DT01277J
CCDC 1901768: Experimental Crystal Structure Determination
Related Article: Tatiana R. G. Simões, Maria Vanda Marinho, Jorge Pasán, Humberto O. Stumpf, Nicolás Moliner, Francesc Lloret, Miguel Julve|2019|Dalton Trans.|48|10260|doi:10.1039/C9DT01277J
CCDC 1898456: Experimental Crystal Structure Determination
Related Article: Ludmila dos S. Mariano, Iara M. L. Rosa, Nathália R. De Campos, Antônio C. Doriguetto, Danielle F. Dias, Walace D. do Pim, Ana Karoline S.M. Valdo, Felipe T. Martins, Marcos A. Ribeiro, Elgte E. B. De Paula, Emerson F. Pedroso, Humberto O. Stumpf, Joan Cano, Francesc Lloret, Miguel Julve, Maria Vanda Marinho|2020|Cryst.Growth Des.|20|2462|doi:10.1021/acs.cgd.9b01638
CCDC 1510395: Experimental Crystal Structure Determination
Related Article: Maria Vanda Marinho, Daniella O. Reis, Willian X. C. Oliveira, Lippy F. Marques, Humberto O. Stumpf, Mariadel Déniz, Jorge Pasán, Catalina Ruiz-Pérez, Joan Cano, Francesc Lloret, and Miguel Julve|2017|Inorg.Chem.|56|2108|doi:10.1021/acs.inorgchem.6b02774
CCDC 1510398: Experimental Crystal Structure Determination
Related Article: Maria Vanda Marinho, Daniella O. Reis, Willian X. C. Oliveira, Lippy F. Marques, Humberto O. Stumpf, Mariadel Déniz, Jorge Pasán, Catalina Ruiz-Pérez, Joan Cano, Francesc Lloret, and Miguel Julve|2017|Inorg.Chem.|56|2108|doi:10.1021/acs.inorgchem.6b02774
CCDC 1883577: Experimental Crystal Structure Determination
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