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The role of'ihe solvent and the substituents on the chromophore arc important in the efficiencies of photoinduced intramolecular electron transfer (PIET) processes. In tlus study estcrs of 9-antlxncene methanol wew syntl~esized and characterized. The fluorescence quantum yields of these esters were measured and electron transfer r ates estimntecl. The estimated electron transfer rate constants were correlated linearly wit11 a values. The fluorescence quantum yields were also measured in two different micellar solutions in order to investigate tile behavior of PIET in organized mcdia. The values of the reaction constant, p, for tl~e photoinduced electron transfer were calculated as 3.28 (r = 0.98), 3.42 (r = 0.96) and 2.41 (r = 0.99) in methanol, sodium dodecyl sulphate (SDS) and Triton X-100 (TX-100j respectively. This variation is explained by considering tlle microviscositj~ and micropolarity of the interior of the micelle systems. micellar eRccd.

journal of the national science foundation of sri lanka/journal of the national science foundation

Further studies on photoinduced intramolecular electron transfer of substituted benzoate esters of 9-anthracene methanole II-substituent and medium effects