CHARGE-TRANSFER FLUORESCENCE OF RIGIDLY LINKED ANILINE NAPHTHALENE DONOR-ACCEPTOR SYSTEMS

被引：32

作者：

RETTIG, W ^{[1
]}

HAAG, R ^{[1
]}

WIRZ, J ^{[1
]}

机构：

[1] UNIV BASEL,INST PHYS CHEM,CH-4056 BASEL,SWITZERLAND

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 180卷 / 03期

关键词：

D O I：

10.1016/0009-2614(91)87143-Y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The bichromophoric compounds 1 and 2, a pair of isomers containing a naphthalene and an aniline moiety rigidly linked through an alicyclic spacer, exhibit intramolecular charge-transfer (CT) fluorescence which is strongly affected by solvent polarity. The Coulomb attraction term is somewhat smaller in isomer 1; hence, the CT energy of 1 is intrinsically larger than that of 2. This situation is reversed in highly polar solvents due to the increased solvation arising from the larger mean distance of charge separation for 1. Comparison with solvatochromic shifts in the aniline-naphthalene exciplex leads to the conclusion that the average distance between donor and acceptor in polar intermolecular exciplexes is considerably larger than is commonly assumed.

引用

页码：216 / 221

页数：6

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