Synthesis and Structural Studies of trans-[Bromo-Bis(Dimethylglyoximato] Cobalt(III) Complexes Containing Heterocyclic Nitrogen Donor Ligands

Abstract

Cobalt(III) complexes of the type [Co(DH)₂LBr] where DH =
dimethylglyoximato, anion L = (pyridine, piperidine, quinoline,
isoquinoline, triazole, indole, benzimidazole, benzotriazole, carbazole)
have been isolated and characterized on the basis of physicochemical
methods. The chemical analyses are in complete
agreement with the above formula of the compounds. The IR spectra
reveal the hydrogen bonding and bonding from nitrogen of the
ligand to the cobalt. The NMR spectra indicate the stereochemistry
of the compound. The UV spectra indicate the octahedral geometry
of the complexes.