Effect of O and S heteroatom containing heterocyclic dicarboxylates in the structural diversity of cadmium(II) coordination polymers with flexible 1-substituted (1,2,4-triazole) ligand

ERER H.

POLYHEDRON, cilt.102, ss.201-206, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 102
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.poly.2015.09.041
  • Dergi Adı: POLYHEDRON
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.201-206
  • Anahtar Kelimeler: 2D -> 3D polycatenated, Furan-2,5-dicarboxylate complexes, Thiophene-2,5-dicarboxylate complexes, 1,4-bis[(1H-1,2,4-triazol-1-yl)methyl]benzene, 3D coordination polymer, METAL-ORGANIC FRAMEWORKS, POLYCARBOXYLATE ANIONS SYNTHESES, CRYSTAL-STRUCTURES, BIS(IMIDAZOLE) LIGANDS, MAGNETIC-PROPERTIES, 3D NETWORKS, SERIES, ACID, LUMINESCENCE, ZINC(II)
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

The self-assembly of cadmium(II) ions with bis(1,2,4-triazole) ligand afford two new coordination polymers based on different heterocyclic dicarboxylates, namely, [Cd(mu-fdc)(mu-pbtx)(H2O)](n) (1) and [Cd-2(mu(3)-tdc)(2)(mu-pbtx)(2)(H2O)(2)](n) (2) where H(2)fdc = furan-2,5-dicarboxylic acid, H(2)tdc = thiophene-2,5-dicarboxylic acid, pbtx = 1,4-bis[(1H-1,2,4-triazol-1-yl)methyl]benzene. The coordination polymers have been prepared by the hydrothermal method and characterized by elemental analysis, IR spectra and single crystal X-ray diffraction. The anionic linkers play important roles in modulating the formation of the coordination polymers. Single crystal X-ray diffraction study reveals that complex 1 possesses a uninodal 4-connected two-dimensional (2D) -> 3D polycatenated framework based on inclined 2D 4(4)-sql grids. When the O-containing fdc is replaced by S-containing tdc ligand, a uninodal 8-connected three-dimensional (3D) framework of 2 with rare cco-8-Pbcm (3(6).4(14).5(7).6) topology is obtained under the same reaction conditions. The effect of O and S atoms in heterocyclic dicarboxylates on the formation of framework has been discussed. Moreover, photoluminescence properties and thermal stabilities of the compounds were investigated. (C) 2015 Elsevier Ltd. All rights reserved.