Chain-Length- and Solvent-Dependent Intramolecular Proton Transfer in Styrene-Amine Exciplexes
作者:Frederick D. Lewis、G. Dasharatha Reddy、Dario M. Bassani、Siegfried Schneider、Michael Gahr
DOI:10.1021/ja00081a021
日期:1994.1
Efficient intramolecular addition of an aminomethyl C-H to styrene is observed in nonpolar. solvents for the (aminoethyl)styrenes, and addition of an aminomethylene C-H is observed for the (aminobutyl)styrenes. However, the (aminomethyl)- and (aminopropyl)styrenes do not undergo intramolecular addition reactions. Both the reactive and unreactive (aminoalkyl)styrenes form fluorescent singlet exciplexes in
研究了几种((N,N-二甲氨基)烷基)苯乙烯的光化学和光物理行为,其中氨基通过甲基、乙基、丙基或丁基多亚甲基链连接到苯乙烯的α-或β-碳上。在非极性中观察到氨基甲基 CH 与苯乙烯的有效分子内加成。(氨基乙基)苯乙烯的溶剂,并且观察到(氨基丁基)苯乙烯添加氨基亚甲基CH。然而,(氨甲基)-和(氨丙基)苯乙烯不发生分子内加成反应。反应性和非反应性(氨基烷基)苯乙烯在非极性和极性溶剂中形成荧光单线态激发复合物