THE ROOM-TEMPERATURE PHOSPHORESCENCE OF 2-CHLORONAPHTHALENE INDUCED BY INCLUSION COMPLEXATION WITH 6-IODO-6-DEOXY-BETA-CYCLODEXTRIN AND THE EXCIMER FLUORESCENCE OF A BETA-CYCLODEXTRIN-2-CHLORONAPHTHALENE INCLUSION COMPLEX IN AQUEOUS-SOLUTION

被引：25

作者：

HAMAI, S

MONONOBE, N

机构：

[1] Department of Chemistry, College of Education, Akita University, Akita, 010

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1995年 / 91卷 / 03期

关键词：

ROOM TEMPERATURE PHOSPHORESCENCE; 2-CHLORONAPHTHALENE; INCLUSION COMPLEXES; EXCIMER FLUORESCENCE;

D O I：

10.1016/1010-6030(95)04128-1

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：

In aqueous solution, 6-iodo-6-deoxy-beta-cyclodextrin (beta-CDI) forms a 1:1 inclusion complex with 2-chloronaphthalene (2CN), with a formation constant of 1400 +/- 300 mol(-1) dm(3). The fluorescence of 2CN is quenched by the formation of the inclusion complex with beta-CDI. In addition, in deaerated aqueous solution, the room-temperature phosphorescence of 2CN is observed from the inclusion complex. Although parent beta-cyclodextrin (beta-CD) also induces the room-temperature phosphorescence of 2CN on formation of an inclusion complex with this compound, beta-CDI as a heavy atom perturber is more than 1.2 times as effective in enhancing the room-temperature phosphorescence than beta-CD beta-CD forms an inclusion complex with 2CN, from which the excimer fluorescence of 2CN is observed. It is probable that the excimer fluorescence is due to a 2:2 beta-CD-2CN inclusion complex.

引用

页码：217 / 221

页数：5

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