Article,

Synthesis, characterization, and crystal structure determination of two copper(II) complexes: Cu(dm4bt)Cl2(DMSO) and \Cu(dm4bt)(H2O)(tpht)\ center dot H2On

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JOURNAL OF COORDINATION CHEMISTRY, 63 (18): 3207-3217 (2010)
DOI: {10.1080/00958972.2010.509794}

Abstract

Copper complexes, Cu(dm4bt)Cl2(DMSO) (1) and \Cu(dm4bt)(H2O)(tpht)\ H2On (2) (dm4bt, 2,2'-dimethyl-4,4'-bithiazole; tpht, terephthalate), have been synthesized and their crystal structures were determined by X-ray crystallography. Complex 1 was prepared from a reaction of CuCl2 2H2O with dm4bt and terephthalic acid in a mixture of methanol, water, and DMSO. Complex 2 was prepared from a reaction of CuCl2 2H2O with dm4bt, terephthalic acid, and ethylene diamine in a mixture of methanol and water. The two complexes were characterized by IR, UV-Vis spectroscopy, and single-crystal structure. Complex 2 was also characterized by electron paramagnetic resonance spectra. Complex 1 is a monomer while 2 is a coordination polymer. This copper tpht polymer has a cis-configuration of tpht rings opposed to zigzag chains with anti-configuration usually reported in the literature.

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