Exciplex fluorescence in heterocycle acceptor complexes

Abstract

A number of heterocyclic acceptor excited-state (exciplex) complexes with N,N-diethylaniline have been examined. In general their behaviour is consistent with the accepted theories. Spectral shift sand intensity changes with solvent and radiationless deactivation appear to be more complicated than with aromatics. The bipyridyls are discussed in some detail.