Remarkable effect of electron acceptors on pyrene-sensitized decomposition of N-phenylglycine

Article abstract of DOI:10.1246/cl.1999.1009

The efficiency of the pyrene-sensitized decomposition of N-phenylglycine (NPG) was enhanced by the addition of an electron acceptor, such as p-dicyanobenzene. The reaction mechanism is discussed on the basis of observed Stern-Volmer constants for quenching of singlet excited state of pyrene (py*) and transient absorption spectra. Examination of various electron acceptors shows that the efficient quenching of py* by electron acceptors does not necessarily result in an increase in the NPG decomposition rate.