摘要

The quenching mechanisms of both the singlet and triplet state riboflavin (RF) by dopamine (DP) were investigated by means of density functional theory calculations in this communication. It was found that both the direct electron transfer and H-atom transfer pathways are thermodynamically feasible for the singlet state RF quenching by DP, while only the H-atom transfer pathway is involved in the triplet state RF quenching by DP.