A Continuous Spectroscopic Investigation of Polyaromatic Hydrocarbons (Acenaphthylene and Acenaphthene) and a Biological π Acceptor (Folic acid)


The complexation between folic acid and typical polyaromatic hydrocarbons (Acenaphthylene and Acenaphthene) was studied by using FTIR and UV spectra with pH changing. The experiments confirmed that combination was through π-π donor–acceptor interaction and inducing the protonation process in folic acid upon strengthening electron accepting ability of the acid so the changing of their charge distribution and the surroundings became necessarily. In another words, this inferred that not only biotransformation process of folic acid, but also the toxicity of polyaromatic hydrocarbons could be more understood.