Linkage isomerism for 4-methylimidazole and a new coordination mode of pyrazine-2,3-dicarboxylate ligand in {[Cd(pzdc)(4-mim)(5-mim)(2)]center dot 1/2H(2)O}(n) coordination polymer

YEŞİLEL O. Z., Gunay G., Mutlu A., ÖLMEZ H., BÜYÜKGÜNGÖR O.

INORGANIC CHEMISTRY COMMUNICATIONS, cilt.13, sa.10, ss.1173-1177, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 13 Sayı: 10
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.inoche.2010.06.042
  • Dergi Adı: INORGANIC CHEMISTRY COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1173-1177
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

A novel one dimensional coordination polymer of Cd(II)-pyrazine-2,3-dicarboxylate with a new coordination mode of pyrazine-2,3-dicarboxylate ligand (pzdc), {[Cd(pzdc)(4-mim)(5-mim)(2)]center dot 1/2H(2)O}(n)) (1) (4(5)-methylimidazole = 4 (5)-mim), has been synthesized and characterized by elemental, thermal analysis, IR spectrum and single crystal X-ray diffraction technique. In complex 1, the Cd(II) ion has a distorted octahedral geometry, in which the pzdc moiety acts as a bridging ligand. Linkage isomerism of the coordinated 4(5)-methylimidazole ligand was observed in 1. The two adjacent one-dimensional chains connected by interchain hydrogen bonds among the N-H groups of methylimidazoles and carboxylate oxygens of pzdc, leading to a three-dimensional framework. The hydrogen bonds account for the coexistence of two unique coordination forms of methylimidazoles in the same coordination sphere. (C) 2010 Elsevier B.V. All rights reserved.