One-dimensional coordination polymers of Co(II) and Cd(II)-squarate with 2-methylimidazole and 4(5)-methylimidazole ligands

ERER H., YEŞİLEL O. Z., BÜYÜKGÜNGÖR O.

POLYHEDRON, cilt.29, sa.3, ss.1163-1167, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 29 Sayı: 3
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.poly.2009.12.017
  • Dergi Adı: POLYHEDRON
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1163-1167
  • Anahtar Kelimeler: Supramolecular complexes, Polynuclear complexes, Squarate complexes, Coordination polymers, Methylimidazole complexes, CRYSTAL-STRUCTURE, MAGNETIC-PROPERTIES, COPPER(II) COMPLEXES, DINUCLEAR COPPER(II), NICKEL(II) COMPLEXES, MOLECULAR-STRUCTURES, SQUARATE LIGAND, COBALT(II), DIHYDRATE, OXALATE
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

Two new mixed-ligand coordination polymers, {[Co(mu(1,3)-sq)(H2O)(2)(2-Meim)(2)] 2(2-Meim)}(n) (1) and [Cd(mu(1) (3)-sq)(H2O)(2)(4(5)-Meim)(2)](n) (2), (sq = squarate, 2-Meim = 2-methylimidazole, 4(5)-Meim = 5-methylimidazole) have been synthesized and structurally characterized by X-ray crystallography. The spectral (IR arid UV-Vis) and thermal analyses are also reported The Co(II) and Cd(II) ions are distorted octahedrally coordinated by four oxygen atoms of two O-1-O-3-bridging squarate ligands arid two trans-aqua ligands, and by two nitrogen atoms of the trans-imidazole (2-Meim or 4(5)-Meim) ligands The structures of 1 and 2 consist of one-dimensional chains of mu-1,3-squarato bridged metal(II) complex units These chains are held together by hydrogen bonding interactions, forming three-dimensional framework (C) 2009 Elsevier Ltd All rights reserved