Features of spectral characteristics of phenyl-containing vanadium (III) β-diketonates

Tris-dibenzoylmethanate ([V(dbm) 3 ]) and tris-benzoylacetonate vanadium ([V(bac) 3 ]) were obtained by electrochemical synthesis. The composition of chelates was determined using elemental analysis and IR spectral data. It was shown that the formation of a quasi-aromatic metallocycle, the main structural element of chelate, occurred as a result of electrolysis. At the same time, the batachromic shift of absorption bands of carbonyl groups was more than 100 cm –1 . The overwhelming majority of absorption bands in the IR spectra of both compounds had mixed nature. For ([V(dbm) 3 ] the characteristic of absorption bands did not exceed 13.5 %, and for [V(bac) 3 ] – 10.3 %. The peripheral groups of ligands (phenyl and methyl) did not undergo transformation when influenced by electric current.