Synthesis and characterization of Co(II) and Ni(II) complexes of 2,5-diphenyl-3,4-bis(2-pyridyl)-cyclopentadienone (L). X-ray crystal structures of CoLCl2.0.5CH3CN and NiLBr2.CHCl3
Artikel i vetenskaplig tidskrift, 2010

The preparation and properties of [M(chelate)X2] complexes are reported, where M = Co(II) or Ni(II), chelate = 2,5-diphenyl-3,4-bis(2-pyridyl)cyclopentadienone and X = Cl or Br. These complexes have been characterized by elemental analyses and spectroscopic methods. The crystal and molecular structures of CoLCl2·0.5CH3CN (1) and NiLBr2·CHCl3 (4) have been determined by X-ray crystallography. Compound (1) crystallizes in the triclinic space group P-1, different from that of CoLCl2 (monoclinic space group P21/c) that we have reported previously. Compound (4) crystallizes in the monoclinic space group P21/n. Both CoLCl2 and NiLBr2 complexes are pseudo-tetrahedral, and utilization is made of the electronic and vibrational spectra in the structural diagnosis of CoLBr2 and NiLCl2.

crystal structures

pseudotetrahedral

nickel(II)

chelates

cobalt(II)

Författare

Mehdi Amirnasr

Isfahan University of Technology

Vratislav Langer

Chalmers, Kemi- och bioteknik, Oorganisk miljökemi

Ahmad Amiri

Isfahan University of Technology

Shadpour Mallakpour

Isfahan University of Technology

Farzaneh Afshar

Isfahan University of Technology

Polyhedron

0277-5387 (ISSN)

Vol. 29 985-990

Ämneskategorier

Kemi

Organisk kemi

DOI

10.1016/j.poly.2009.11.020