Three copper(II) complexes of thiophene-2,5-dicarboxylic acid with dissimilar ligands: Synthesis, IR and UV-Vis spectra, thermal properties and structural characterizations

YEŞİLEL O. Z., Ilker I., BÜYÜKGÜNGÖR O.

POLYHEDRON, cilt.28, sa.14, ss.3010-3016, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 28 Sayı: 14
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.poly.2009.06.044
  • Dergi Adı: POLYHEDRON
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3010-3016
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

Three thiophene-2,5-dicarboxylic acid (H(2)tdc) complexes of copper(II) with 2-aminomethylpyridine (ampy), {[Cu(2)(mu-tdc)(2)(ampy)(2)]center dot 2DMF}(n) (1), ethylenediamine (en), trans-[Cu(H(2)O)(2)(en)(2)](tdc) (2) and 4-methylimidazole (4-meim), trans-[Cu(H(2)O)(2)(4-meim)(4)](tdc)center dot 4H(2)O (3) have been synthesized and characterized by spectral (IR, UV-Vis), thermal analyses and X-ray diffraction techniques. In 1, thiophene-2,5-dicarboxylate acts as a bridging bis(bidentate) ligand through four carboxylate oxygen atoms forming a 1-D zigzag polymeric chain, whereas in 2 and 3 the tdc dianion behaves as a counter ion. In all cases, the Cu(II) centers have an octahedral coordination geometry. Three-dimensional frameworks are constructed though hydrogen bonding and/or C-H center dot center dot center dot pi interactions in the three complexes. (C) 2009 Elsevier Ltd. All rights reserved.