Synthesis and characterization of silver(I) saccharinate complexes with pyrazole and imidazole ligands: [Ag(sac)(pz)(H2O)](n) and [Ag(sac)(im)] center dot 2H(2)O

YILMAZ V. T., Hamamci S., Buyukgungor O.

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, vol.61, no.2, pp.189-193, 2006 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 61 Issue: 2
  • Publication Date: 2006
  • Journal Name: ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.189-193
  • Keywords: saccharinate, pyrazole, imidazole, silver, CRYSTAL-STRUCTURES
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

Two new silver(I) saccharinate (sac) complexes, [Ag(sac)(pz)(H2O)](n) (1) and [Ag(sac)(im)]center dot 2H(2)O (2) (pz=pyrazole and im=imidazole), have been prepared and characterized by elemental analysis, IR spectroscopy, thermal analysis and single crystal X-ray diffraction. Complexes 1 and 2 crystallize in the monoclinic space group P2(1)/c and triclinic space group P (1) over bar, respectively. The sac, pz and im ligands all are N-coordinated. In 1, the [Ag(sac)(pz)] units are bridged by aqua ligands to generate a one-dimensional helical chain, in which the silver(l) ions exhibit a distorted square-planar AgN2O2 coordination geometry. The polymeric chains are connected by N-H center dot center dot center dot O hydrogen bonds into sheets, which are further linked by aromatic pi(pz)center dot center dot center dot pi(sac) stacking interactions into a three-dimensional supramolecular network. Complex 2 consists of individual molecules containing linearly coordinated silver(I) ions with a slightly distorted coordination of AgN2. The molecules interact with each other through hydrogen bonds and pi center dot center dot center dot pi interactions to form a three-dimensional supramolecular network.