There has been tremendous interest in photo-induced charge transfer phenomena because the process can be initiated at a well defined instant and spectroscopic investigations can monitor the changes easily. The present work deals with a systematic study on the ICT behavior of two different cinnamic acid derivatives in different media. Despite potential complexity of microaggregates containing intrinsically heterogeneous systems, several mean microscopic properties were obtained using fluorimetric titration. The applicability of ICT fluorescence of these probes to characterize different known...