n e 4λRTРinteresting cases are those quenchers for whichРelectron transfer is less than diffusion-limited and in which υn is the frequency factor and κe is theРis competitive with energy transfer. In these cases, adiabaticity factor. The curve shown was obtainedР qРsubstantially negative ∆Vq values were seen (Table by allowing the product Kaνnκe and reorganizationР4), apparently reflecting the substantial outer-sphere energy λ to iterate until an optimum fit (R ) 0.96)Рsolvent reorganization energy owing to charge sepa- was obtained. This gave a typical value of 1.5 × 1011Р -1 -1Рration accompanying the electron transfer A* + Q M s for Kaνnκe and a large value of 1.89 eV (183
全文预览
