Synthesis and structural characterization of a new polymeric zinc(II) complex with thiophene-2-carboxylic acid
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
01/01/2010
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Resumo |
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Processo FAPESP: 07/06072-2 A new polymeric zinc(II) complex with thiophene-2-carboxylic acid (-tpc) of composition [Zn2(C20H12O8S4)]n was obtained and structurally characterized by X-ray diffraction, thermal analysis, nuclear magnetic resonance (NMR), and infrared spectroscopies. Upfield shift in the 1H-NMR spectrum is explained by the crystalline structure, which shows the thiophene rings overlapping each other in parallel pairs. The compound crystallizes in the monoclinic system, space group P21/c, with a = 9.7074(4) angstrom, b = 13.5227(3) angstrom, c = 18.9735(7) angstrom, = 95.797(10)degrees, and Z = 4. Three -tpc groups bridge between two Zn(II) ions through oxygens and the fourth one bridges between one of these ions and the third one, symmetry related by a twofold screw axis. This arrangement gives rise to infinite chains along the crystallographic a direction. The metal atoms display an approximate tetrahedral configuration. The complex is insoluble in water, ethanol, and acetone, but soluble in dimethyl sulfoxide. |
Formato |
2278-2285 |
Identificador |
http://dx.doi.org/10.1080/00958972.2010.503271 Journal of Coordination Chemistry. Abingdon: Taylor & Francis Ltd, v. 63, n. 13, p. 2278-2285, 2010. 0095-8972 http://hdl.handle.net/11449/39797 10.1080/00958972.2010.503271 WOS:000281220400007 |
Idioma(s) |
eng |
Publicador |
Taylor & Francis Ltd |
Relação |
Journal of Coordination Chemistry |
Direitos |
closedAccess |
Palavras-Chave | #Polymeric zinc complex #Thiophene-2-carboxylic acid #Crystal structure #1H-and 13C-NMR |
Tipo |
info:eu-repo/semantics/conferenceObject |