Solvation Statics and Dynamics of Coumarin 153 in Hexane−Propionitrile Solvent Mixtures

We have studied the solvation statics and dynamics of coumarin 153 dye in binary hexane−propionitrile solvent mixtures. The static and dynamic solvation of coumarin 153 in hexane−propionitrile shows that preferential solvation occurs in both the ground and excited states. We analyzed both the statics and dynamics of preferential solvation of coumarin 153 in hexane−propionitrile using Agmon's model, which is based on extension of the Smoluchowski aggregation model to the reversible case.