Mixed-Ligand Complexes of Cr(III), Fe(III) and Ru(III) Diphenates with Heterocyclic Bases

摘要

Several new mixed ligand complexes of chromium(III), iron(III) and ruthenium(III) with diphenic acid (DAH2) and nitrogen-containing heterocyclic bases have been prepared. The complexes have the compositions KM(DA)2.L2, KM(DA)2.L1 and K2M(DA)2 (OX), where M = Cr(III), Fe(III) or Ru(III); DA = dianion of diphenic acid; L = quinoline (Q), isoquinoline (IQ), pyridine (Py), 2-picoline (2-Pic) or 4-picoline (4-Pic); L#x2032; = 2-aminopyridine (2-Apy), 3-aminopyridine (3-Apy), 2,2#x2032; -bipyridine (Bipy) or 1, 10-phenan-throline (Phen); OX = anion of 8-hydroxyquinoline. The complexes were characterised on the basis of elemental analyses, conductivity measurements, magnetic measurements, infra-red and electronic spectral studies. All the complexes were found to be octahedral.