Synthesis, characterization and electrical conductivity of mixed-ligand heterobimetallic coordination polymers

Abstract

A series of mixed-ligand heterobimetallic complexes of the form MM′(C7H4NS2 )4(py)2 and MM′(C7H4NS2)4(N-N) and complex heterobimetallic salts [M(N-N)3][M′ (C7H4NS2)4] [M = Co(II) or Ni(II); M′= Zn(II) or Hg(II); N-N = ethylenediamine(en) or 1,10-phenanthroline(phen)] has been prepared and characterized by IR and UV-visible spectroscopy, microanalysis and conductivity techniques. Except with NiZn(C7H4NS2)4(py)2 which is insulator all of the compounds exhibit σrt in the 10-12-10-5 S cm-1 range and semiconduct over 303-393 K. © 2002 Elsevier Science B.V. All rights reserved.