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. (C) 2003 Elsevier Science B.V. All rights reserved.