Synthesis, characterization and crystal structures of dinuclear macrocyclic Schiff base copper(I) complexes bearing different bridges


Khandar A. A. , Butcher R. J. , Abedi M., Hosseini-Yazdi S. A. , AKKURT M. , Tahir M. N.

POLYHEDRON, vol.29, no.17, pp.3178-3182, 2010 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 17
  • Publication Date: 2010
  • Doi Number: 10.1016/j.poly.2010.08.031
  • Title of Journal : POLYHEDRON
  • Page Numbers: pp.3178-3182

Abstract

Utilizing a new 20-membered macrocyclic Schiff base ligand with two coordination sites formed from the [2+2] condensation of 1 3-diaminopropane and benzene-1 3-chcarboxaldehyde in the presence of CuX (X = Cl- Br- I-) salts air-stable dicopper(I) complexes were synthesized in acetonitrile intramolecularly linked via two halide groups and characterized by different physico chemical techniques The single crystal X-ray diffraction technique indicates these complexes consist of two N2X2 donor sets that have distorted tetrahedral coordination environments around the copper(I) ions In these halogen-bridged binuclear Cu2LX2 systems the Cu Cu separation can be controlled as this distance is reduced on increasing the halide size and hence the X X repulsion with the rigidity of the macrocycle playing a significant role (C) 2010 Elsevier Ltd All rights reserved