Abstract

the solvent reorganization energy should significantly decrease with applied pressure due to changes in the solvent dielectric constant and refractive index, whereas small increases are observed. Possible reasons for this discrepancy are discussed. Electron transfer from a neutral donor to DCA or TCA forms a radical anion/radical cation pair, whereas electron transfer to MA+ forms a radical/radical cation pair. Different pressure dependencies are observed for @& when the cyanoanthracene and MA+ acceptors are used which are attributed to differing influences of electrostriction on k,, for the two acceptors.

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