STATIC AND DYNAMIC FLUORESCENCE QUENCHING OF A DICYANOANTHRACENE-CAPPED BETA-CYCLODEXTRIN

被引：24

作者：

ACQUAVELLA, MF ^{[1
]}

EVANS, ME ^{[1
]}

FARRAHER, SW ^{[1
]}

NEVORET, CJ ^{[1
]}

ABELT, CJ ^{[1
]}

机构：

[1] COLL WILLIAM & MARY,DEPT CHEM,WILLIAMSBURG,VA 23187

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 1995年 / 02期

关键词：

D O I：

10.1039/p29950000385

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Fluorescence quenching of 6(A),6(D)(C)-(9,10-dicyanoanthracene-2,6-disulfonyl)-beta-cyclodextrin (DCA-beta-CD) by several amines (1-6) has been investigated. Apparent Stern-Volmer constants, which are the sum of dynamic and static (binding) components, have been determined. Quenching constants with potassium 9,10-dicyanoanthracene-2,6-disulfonate (DCA-DS) and binding constants with beta-CD have been determined as approximations for the dynamic and static components, respectively. DCA-beta-CD does not bind all amines more strongly than does beta-CD despite its greater hydrophobic surface area. Dynamic quenching accounts for at least a fifth of the total even with strongly bound amines. Neither charge-transfer absorption nor exciplex emission is observed for any inclusion complex.

引用

页码：385 / 388

页数：4

共 35 条

[1] SYNTHESIS OF A WATER-SOLUBLE DICYANOANTHRACENE AS A CAP FOR BETA-CYCLODEXTRIN [J].