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4-硝基喹啉氧化物激发三重态与甲硫氨酸二肽之间的电子转移
Reaction of Electron Transfer from Methionine-containing Dipeptides to Triplet 4-Nitroquinoline 1-Oxide
【Abstract】 Photochemical reactions of 4-nitroquinoline 1-oxide(4NQO) with methionine-containing dipeptides Met-Met, Ala-Met, Met-Lue and Met-Gly have been studies by using 248 nm laser flash photolysis. The formation of α-alkyl radicals was observed, and their rate constants of formation were obtained. The reaction mechanism that the α-alkyl radicals produced via an electron transfer process between triplet 4NQO and methionine-containing dipeptide was proposed.
【关键词】 硝基喹啉氧化物;
含甲硫氨酸的肽;
激光闪光光解;
电子转移;
【Key words】 Nitroquinoline 1-oxide; Methionine-containing dipeptides; Laser flash photolysis; Electron transfer;
【Key words】 Nitroquinoline 1-oxide; Methionine-containing dipeptides; Laser flash photolysis; Electron transfer;
- 【文献出处】 高等学校化学学报 ,Chemical Research In Chinese Universities , 编辑部邮箱 ,2000年07期
- 【分类号】O644
- 【下载频次】46