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vol.54 número2SYNTHESIS OF CONFORMATIONALLY RESTRICTED N-{4-[4-(4,7-DIMETHOXY-BENZO[b]THIOPHENE-2-CARBONYL)-1-PIPERAZINYL]-PHENYL}-ARYLCARBOXAMIDES POTENTIAL LIGANDS WITH 5-HT1A BINDING AFFINITYOXYGEN RADICAL ANTIOXIDANT CAPACITY (ORAC) VALUES OF HERBAL TEAS OBTAINED EMPLOYING DIFFERENT METHODOLOGIES CAN PROVIDE COMPLEMENTARY DATA índice de autoresíndice de assuntospesquisa de artigos
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Journal of the Chilean Chemical Society

versão On-line ISSN 0717-9707

Resumo

BRIT0, IVÁN et al. X-RAY CRYSTALLOGRAPHIC STRUCTURAL STUDY ON A NEW COORDINATION POLYMER: CATENA-di-μCHLORO-BIS[(di-2-PYRIDYLDISULFIDE- k2 N, N') COPPER(I)]. J. Chil. Chem. Soc. [online]. 2009, vol.54, n.2, pp.151-153. ISSN 0717-9707.  http://dx.doi.org/10.4067/S0717-97072009000200012.

In title compound, [CuC1(C10H8N2S2)]n, (I) each Cu(I) ion coordinates to two nitrogen atoms from two different ligands and to two chloro ions which bridge to another Cu(I) to complete a planar four-membered Cu2Cl2 ring.The Cu+ coordination geometry is best described as a slightly distorted tetrahedron. The structure consists of CuCl cores connected by 2, 2'-dypyridyldisulfide ligand and form a two-dimensional extended polymeric network in which the 2, 2'-dipyridyldisulfide ligand bridges Cu atoms. The title compound is isostructural with di-u-chlorido-bis[(di-2-pyridyldisulnde-K2 N, N') copper(I)], (II)', which is a zero-dimensional binuclear compound. The two structures differ due conformational flexibility of ligand, which have axial conformation in (I) and equatorial conformation in (II), torsion angles S-S-C-N (axial ring) 168.8(4)°; for (I) and 72.0(3)° for (II) respectively.

Palavras-chave : Coordination polymes; disulfides; x-ray diffraction.

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