One-dimensional silver(I) 5,5-diethylbarbiturato coordination polymers with N-piperidineethanol and 1,3-bis(4-piperidyl)propane: Syntheses, crystal structures, spectroscopic and thermal properties


YILMAZ V. T. , Soyer E., BÜYÜKGÜNGÖR O.

POLYHEDRON, vol.29, no.2, pp.920-924, 2010 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 2
  • Publication Date: 2010
  • Doi Number: 10.1016/j.poly.2009.10.029
  • Title of Journal : POLYHEDRON
  • Page Numbers: pp.920-924

Abstract

Two new coordination polymers, [Ag(2)(barb)(pipet)](n) (1) and {Na(3)[Ag(2)(barb)(2)](pippr)center dot 2H(2)O}(n) (2) (where H(2)barb, pipet and Hpippr are 5,5-diethylbarbituric acid, N-piperidineethanol and 1,3-bis(4-piperidyl)propane, respectively) have been synthesized and characterized by elemental analysis, IR, thermal analysis and X-ray single-crystal diffraction techniques. Silver(I) ions in complexes 1 and 2 are bridged by barb dianions, leading to one-dimensional coordination polymers. In 1, the barb ligand acts as a tetradentate bridging ligand, while in 2 as a bidendate bridging ligand. The pipet ligand behaves as a bidentate chelating donor, whereas the pippr anion is not involved in coordination and remains as a counter-ion. The one-dimensional chains of 1 and 2 are further extended into supramolecular networks. Spectral and thermal analysis data for 1 and 2 are in agreement with the crystal structures. (C) 2009 Elsevier Ltd. All rights reserved.