FLUORESCENCE BEHAVIOR OF 2,2'-BIPYRIDINE IN AQUEOUS-SOLUTION

被引：19

作者：

DHANYA, S

BHATTACHARYYA, PK

机构：

[1] BHABHA ATOM RES CTR,DIV ISOTOPE,BOMBAY 400085,INDIA

[2] BHABHA ATOM RES CTR,DIV CHEM,BOMBAY 400085,INDIA

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1992年 / 63卷 / 02期

关键词：

D O I：

10.1016/1010-6030(92)85134-G

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 behaviour of an aqueous solution of 2,2'-bipyridine (Bpy) (concentration, greater than 10(-3)M) was investigated under various conditions. When complexed with Zn2+ or Cd2+ the excitation maximum changed from 365 to 370 nm and the fluorescence maximum was red shifted from 430 to 455 nm. The enhancement of the fluorescence intensity on complexation is at a maximum for the 1:1 complex. The fluorescence intensity is affected by the presence of additives such as urea and LiCl. These observations suggest that the fluorescence originates from the excited state of the Bpy dimer or higher aggregates.

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页码：179 / 185

页数：7

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