Studies on Cobaloxime Compounds. I. Synthesis of Various Cobaloximes and Investigation on Their Infrared and Far-Infrared Spectra

Abstract

Cobaloximes with the general formula: [CoX(DH)2B] or [RCo(DH)2B] (X: Cl, CN. R: Alkyl groups such as methyl, ethyl, n-propyl, i-propyl, n-butyl, benzyl, or hydroxypropyl. DH: Dimethylglyoximato monoanion. B: Bases such as water, nicotinamide, p-toluidine, pyridine, γ-picoline, imidazole, or 4-vinylpyridine), and polymeric cobaloximes with the general formula: [Co(OH)(DH)2(Copoly–AM-VPy)] (Copoly–AM-VPy: a low molecular weight copolymer of acrylamide and 4-vinylpyridine), were synthesized and their infrared and far-infrared spectra were examined. The frequency shifts by changing the axial ligands were discussed.