Electronic structure and vibrational frequencies in dehydroacetic acid (DHA) transition-metal complexes: A DFT study

A bonding analysis of these species shows the weakness of M-O (solvent) bonds compared to M-O (DHA) ones. The calculated vibrational data have been found in good agreement with experimental results. TD-DFT calculations rationalize the long-range electronic communication as a main characteristic of the DHA transition-metal species and as a key to improve MLCT and LMCT charge transfers.