Interaction between naphthyl-indolyl-ethenes and aliphatic amines -: Effects on fluorescence and trans→cis photoisomerization

被引：4

作者：

Galiazzo, G

Bortolus, P

Gennari, G

机构：

[1] Univ Padua, Dipartimento Chim Fis, I-35131 Padua, Italy

[2] Univ Padua, Dipartimento Chim Organ, I-35131 Padua, Italy

[3] CNR, Area Ricerca, Ist Fotochim & Radiaz Alta Energia, I-40129 Bologna, Italy

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1999年 / 120卷 / 03期

关键词：

naphthyl-indolyl-ethenes; aliphatic amines; fluorescence; trans -> cis photoisomerization;

D O I：

10.1016/S1010-6030(98)00421-3

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 fluorescence of two trans naphthyl-indolyl-ethenes in solvents of different polarity and H-bonding ability is quenched by aliphatic amines. The I-I-bonded complexes formed both in the ground- and in the first excited singlet state are responsible for the quenching in nonhydroxylated media. In methanol the interaction, which occurs only in the excited st;state, leads to the deprotonation of the indolyl-moiety. The consequences of the quenching on the trans-->cis photoisomerization yield are reported. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：161 / 170

页数：10

共 36 条

[1]

AHMAD A, 1981, PHOTOCHEM PHOTOBIOL, V34, P573, DOI 10.1111/j.1751-1097.1981.tb09405.x

[2] ROLE OF CHARGE-TRANSFER INTERACTIONS IN PHOTOREACTIONS .2. EXCIPLEXES BETWEEN STILBENE-LIKE MOLECULES AND AMINES [J].