Dinuclear and polynuclear copper(II) complexes with 3,3 '-thiodipropionate and unprecedented coordination mode


ARICI M., YEŞİLEL O. Z. , ŞAHİN O., TAŞ M.

POLYHEDRON, vol.71, pp.62-68, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 71
  • Publication Date: 2014
  • Doi Number: 10.1016/j.poly.2014.01.005
  • Journal Name: POLYHEDRON
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.62-68
  • Keywords: 3,3 '-Thiodipropionate complexes, Copper(II) complexes, Coordination polymers, Dinuclear complex, Thermochromism, POLYMERS
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

Three new coordination compounds, {[Cu(mu(3)-tdp)(phen)]center dot 2H(2)O} (1), {[Cu(mu(3)-tdp)(bipy)]center dot H2O}(n) (2), [Cu(mu(3)-tdp)(bhen)(4)](NO3)(2)center dot 2H(2)O (3) [tdpH(2) = 3,3'-thiodipropionic acid, phen = 1,10-phenanthroline, bipy = 2,2'-bipyridine] were synthesized and characterized by the IR spectroscopy, elemental analysis, magnetic measurements and single crystal X-ray diffraction. Thermal behaviors and thermochromic properties of the complexes were investigated in detail. Complexes I and 2 are 1D coordination polymers while complex 3 is dinuclear structure. In complexes 1 and 2, the tdp acts as a tridentate bridging ligand to coordinate the two different Cu(H) centers to form 1D chain, which are extended into a 3D networks by hydrogen bonding and pi center dot center dot center dot pi interactions. The 3,3'-thiodipropionate ligand adopts a new coordination mode in 3. Furthermore, complex 3 changed the color from blue to green at 140 degrees C at solid state. (C) 2014 Elsevier Ltd. All rights reserved.