The structure, dynamics, and hydrogen bonding effects on the triplet state of the phototrigger model compound p-methoxyacetophenone (MAP) were analyzed using piesecond and nanosecond time-resolved resonance Raman spectroscopy combined with density fuctional theory calculations. The ground and triple states of MAP were found to be associated strongly with the water solvent molecules in the 50% H2O/50% MeCN solvent system. H-bonds at the carbonyl site involving one water molecule was found to be the most stable for both the ground and the triplet state. It was also found out that the triplet of both the free MAP and the carbonyl H-bond complex was generated rapidly after photoexcitation.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry