Towards hydroperoxovanadium complexes: the X-ray crystal structure of a peroxovanadium(v) complex containing a V(O-2)(RCO2H)(H2O)(2) cluster with hydrogen bond inter-linkages

The molecular structure of the oxo-peroxovanadium complex [VO(O-2)(bpaH)]Cl O4. 2H(2)O, containing the new ligand N,N-bis(2-pyridylmethyl)-beta -alanin e (bpaH) reveals tight binding of the carboxylic acid function to the vanad ium centre through its doubly bonded oxygen; the carboxylic acid proton med iates hydrogen bonding interactions comprising the peroxo group and the two waters of crystallisation, thus providing the basis for the potential form ation of a hydroperoxo species.