ELECTRON-TRANSFER QUENCHING OF S-2 STATE FLUORESCENCE OF ZN-TETRAPHENYLPORPHYRIN
ELECTRON-TRANSFER QUENCHING OF S-2 STATE FLUORESCENCE OF ZN-TETRAPHENYLPORPHYRIN
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DOI：
10.1016/0009-2614(95)00790-b
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发表时间：
1995-09-01
影响因子：
2.8
通讯作者：
TOKUMARU, K
中科院分区：
文献类型：
--
作者：
CHOSROWJAN, H;TANIGICHI, S;TOKUMARU, K
用稳态光谱和时间分辨光谱研究了四苯基锌卟啉（ZnTPP）与二氯甲烷的第二激发态（S-2）的荧光猝灭。有效的分子间电子转移从ZnTPP的S-2状态到二氯甲烷进行了观察。使用荧光上转换方法测量ZnTPP的S-2态的荧光衰减，并且在纯二氯甲烷中的电子转移的速率常数被确定为1.0 × 10（12）M（-1）s（-1）。
Fluorescence quenching of the second excited (S-2) state of zinctetraphenylporphyrin (ZnTPP) with dichloromethane has been studied by steady state as well as time-resolved spectroscopy. Effective intermolecular electron transfer from the S-2 state of ZnTPP to dichloromethane was observed. The fluorescence decay of the S-2 state of ZnTPP was measured using a fluorescence up-conversion method and the rate constant of the electron transfer in neat dichloromethane was determined to be 1.0 x 10(12) M(-1) s(-1).