Two new pyridine-2,3-dicarboxylate coordination polymers prepared from zerovalent metal precursor: Syntheses, luminescent and magnetic properties


Semerci F., Yesilel O. Z. , Soylu M. S. , Yerli Y. , Dal H.

JOURNAL OF SOLID STATE CHEMISTRY, vol.210, no.1, pp.224-231, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 210 Issue: 1
  • Publication Date: 2014
  • Doi Number: 10.1016/j.jssc.2013.11.028
  • Title of Journal : JOURNAL OF SOLID STATE CHEMISTRY
  • Page Numbers: pp.224-231

Abstract

Two new K+/Cu(II) and Zn(II) coordination polymers with pyridine-2,3-dicarboxylate (pydc), {K-2[Cu(mu-PYdc)(2)] center dot 3H(2)O}(n) (1) and {[Zn(mu-pydc)(H2O)(4-mim)] center dot H2O}(n) (2) (4-mim=4-methylimidazole) have been synthesized from zerovalent metal and characterized by IR, EPR spectroscopy, thermal analysis and single crystal X-ray diffraction techniques. In the sandwiched 3D anionic framework of 1, pydc ligands exhibit hexadentate coordination; tridentate coordination bond with Cu(II) and tridentate ionic interaction with K+ ions. {K2[Cu(mu-pydc)(2)] center dot 3H(2)O}(n) shows a rare topology consists of three dimensional (3,4,5)-connected network with the point symbol of {4(2).6}(2){4(2).8(4)}{4(3).6.8(6)}(2). The distorted square pyramidal geometry of 2 is completed with an nitrogen atom from 4-mim and aqua ligand to form a 1D polynuclear structure. The hydrogen bonds link the 1D chains into 3D architecture. The temperature dependent magnetic property of complex 1 has been studied. Complex 2 exhibits unusual yellow luminescence in the solid state at room temperature. (C) 2013 Elsevier Inc. All rights reserved.