19663-54-8Relevant academic research and scientific papers
Lipophilic chloro-oxo-bis(hydroxamato)vanadium(V) complexes: synthesis methods and structure
Dzyuba, Valeriy I.,Koval, Lyudmila I.,Shtokvysh, Olherd O.,Trachevskii, Volodymyr V.,Pekhnyo, Vasyl I.
, (2020)
New methods for the synthesis of vanadium(V) complexes with hydrophobic alkyl- and aryl-substituted hydroxamic acids as well as hydrophilic ones have been developed. A number of novel coordination compounds of the general formula VOL2Cl (where HL is N-phenylaceto-, N-methylbenzo-, N-methyldecano- or N-methylacetohydroxamic acid) have been synthesized. Complexes of the above formula with alkyl substituents on the ligands have been obtained for the first time. All the compounds obtained have been characterized by UV–Vis, IR, 1H and 51V NMR spectroscopy. Studies using the 51V NMR method showed the presence of two forms of the complexes in solution, which coalesce with increasing temperature. Chloro-oxo-bis(N-methylacetohydroxamato)vanadium(V) has been characterized by X-ray crystallography. The effect of the electron donating properties of the ligand substituents on the structure of the complexes is discussed.
