Singlet state exciplex formation of phenazine with some aromatic amines

Exciplex formation of phenazine with some aromatic amines i.e., N,N-diethylaniline, N,N-dimethylaniline and 4,4′-bis(dimethylamino)diphenylmethane has been studied by steady state fluorescence measurements. Some interesting features of the exciplex were observed which have been attributed to the fast intersystem crossing of the phenazine molecule.