Five new cobalt(II) and copper(II)-1,2,4,5-benzenetetracarboxylate supramolecular architectures: syntheses, structures, and magnetic properties
| hal.structure.identifier | Department of Chemistry | |
| dc.contributor.author | MAJUMDER, Arpi | |
| hal.structure.identifier | Department of Chemistry, Laboratorium für Kristallographie | |
| dc.contributor.author | GRAMLICH, Volker | |
| hal.structure.identifier | Department of Chemistry | |
| dc.contributor.author | ROSAIR, Georgina M. | |
| hal.structure.identifier | School of Chemistry | |
| dc.contributor.author | BATTEN, Stuart R. | |
| hal.structure.identifier | Department of Chemistry and Biochemistry | |
| dc.contributor.author | MASUDA, Jason D. | |
| hal.structure.identifier | Departament de Quimica Inorgànica, Facultat de Quimica | |
| dc.contributor.author | EL FALLAH, M. Salah | |
| hal.structure.identifier | Departament de Quimica Inorgànica, Facultat de Quimica | |
| dc.contributor.author | RIBAS, Joan | |
| hal.structure.identifier | Laboratoire de chimie de coordination [LCC] | |
| dc.contributor.author | SUTTER, Jean-Pascal | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DESPLANCHES, Cédric | |
| hal.structure.identifier | Department of Chemistry | |
| dc.contributor.author | MITRA, Samiran | |
| dc.date.issued | 2006 | |
| dc.identifier.issn | 1528-7483 | |
| dc.description.abstractEn | 1,2,4,5-Benzenetetracarboxylic acid (H4btec) and a combination of N-donor coligands, such as 4-aminopyridine (4-apy), pyrazine (pyz), 2,4,6-tris(2-pyridyl)-1,3,5-triazine (tptz), and 4,4'-bipyridine (4,4'-bipy) with transition metal ions Co(II) and Cu(II), give rise to five coordination complexes namely, [{Co(H2btec)(H2O)4}·4-apy·(H2O)2]n(1), [{Cu(btec)(4-apy)2}·(4-Hapy)2·(H2O)4]n(2), [{Cu(H3btec)2(pyz)·(H2O)2}·H2O]n (3), [Co(tptz)(H2O)2(H2btec)]·(H2O)2(4), and [{Co2(4,4'-bipy)2(H2O)8}·(btec)·(H2O)2]n(5). All these complexes form supramolecular frameworks through ligand-based hydrogen bonding interactions. They have been characterized by a combination of analytical, spectroscopic, and crystallographic methods. These highly crystalline complexes have been obtained under different pH conditions at room temperature and the btec binding mode differs in these five complexes. Complex 1 is a one-dimensional (1D) layered solid consisting of alternating neutral metal-organic coordination polymeric chains, [Co(H2btec)(H2O)4]n, and amines whereas the molecular structure of 2 is made up of alternating layers of anionic [Cu(btec)(4-apy)2]2-n coordination polymers and 4-apy cations (4-Hapy). In both 1 and 2, btec links the metal centers. Complex 3 is composed of zigzag 1D copper chains, and complex 4 is a mononuclear cobalt complex. In both 3 and 4, btec binds as a monodentate ligand. In the crystal structure of 5, btec4- is present unbound in the lattice and linked to 1D chains of [Co(4,4'-bipy)(H2O)4]2+ through strong hydrogen bonding interactions. The magnetic properties of the polymers were investigated in the temperature range 300-2 K. The values for the spin coupling constant J were estimated to be -0.60, -0.50, -0.79, and -5.72 cm-1 for 1-3 and 5, respectively, indicative of antiferromagnetic interactions. | |
| dc.language.iso | en | |
| dc.publisher | American Chemical Society | |
| dc.subject.en | Nitronyl nitroxide radicals | |
| dc.subject.en | Zinc coordination polymers | |
| dc.subject.en | Crystal structure | |
| dc.subject.en | 1.2.4.5-Benzenetetracarboxylic acid | |
| dc.subject.en | Hydrothermal synthesis | |
| dc.subject.en | Cooper(II) complexes | |
| dc.subject.en | Electronic structure | |
| dc.subject.en | Dinuclear complexes | |
| dc.subject.en | Co(II) | |
| dc.subject.en | Chain compounds | |
| dc.title.en | Five new cobalt(II) and copper(II)-1,2,4,5-benzenetetracarboxylate supramolecular architectures: syntheses, structures, and magnetic properties | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1021/cg060337y | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Crystal Growth & Design | |
| bordeaux.page | p. 2355-2368 | |
| bordeaux.volume | vol. 6, n° 10 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00110638 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Non spécifiée | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00110638v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Crystal%20Growth%20&%20Design&rft.date=2006&rft.volume=vol.%206,%20n%C2%B0%2010&rft.spage=p.%202355-2368&rft.epage=p.%202355-2368&rft.eissn=1528-7483&rft.issn=1528-7483&rft.au=MAJUMDER,%20Arpi&GRAMLICH,%20Volker&ROSAIR,%20Georgina%20M.&BATTEN,%20Stuart%20R.&MASUDA,%20Jason%20D.&rft.genre=article |
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