Formation and behavior of intramolecular N- (styrylalkyl)aniline exciplexes

被引：19

作者：

Lewis, FD ^{[1
]}

Wagner-Brennan, JM ^{[1
]}

Miller, AM ^{[1
]}

机构：

[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

来源：

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE | 1999年 / 77卷 / 5-6期

关键词：

intramolecular exciplex; fluorescence; aniline; styrene;

D O I：

10.1139/cjc-77-5-6-595

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The photophysical and photochemical behavior of several aniline spacer - styrene molecules in which the spacer is a short polymethylene chain has been investigated. Long wavelength excitation selectively excites the aniline chromophore which undergoes intramolecular quenching by the styrene to yield an intramolecular exciplex. Exciplex fluorescence is observed for both of the tertiary anilines investigated and for one of the three secondary anilines. More rapid exciplex formation in nonpolar vs. polar solvents is attributed to the necessity of desolvating the polar aniline singlet in polar solvents. Intramolecular adduct formation is the major photochemical process for the secondary anilines, but is highly inefficient for the tertiary anilines. The behavior of the intramolecular aniline-styrene exciplexes is compared to that of the styrene-amine exciplexes previously investigated in this laboratory.

引用

页码：595 / 604

页数：10

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