SPECTROSCOPIC STUDIES OF THE INTERACTION OF TERT-BUTYLAMINE AND N-PROPYLAMINE WITH THE BETA-CYCLODEXTRIN - PYRENE COMPLEX

被引：36

作者：

WILL, AY ^{[1
]}

DELAPENA, AM ^{[1
]}

NDOU, TT ^{[1
]}

WARNER, IM ^{[1
]}

机构：

[1] EMORY UNIV,DEPT CHEM,ATLANTA,GA 30322

来源：

APPLIED SPECTROSCOPY | 1993年 / 47卷 / 03期

关键词：

PYRENE; CYCLODEXTRINS; AMINES; FLUORESCENCE; NUCLEAR MAGNETIC RESONANCE;

D O I：

10.1366/0003702934066749

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The influence of amines on the aqueous beta-cyclodextrin (beta-CD):pyrene complex with the use of steady-state fluorescence measurements is examined. A 2:1 beta-CD:pyrene complex is reported in the presence of either tert-butylamine (TBA) or n-propylamine (PA). At low amine concentrations, the role of the amine is to shield pyrene from the bulk aqueous phase. However, at higher TBA concentrations, there exists a competitive equilibrium between the amine and pyrene for the beta-CD cavity. The formation constants for the various complexes in the presence of either amine were estimated to be of comparable order of magnitude.

引用

页码：277 / 282

页数：6

共 35 条

[31] FORMATION OF PYRENE EXCIMER IN AN ASSOCIATION DIMER OF PYRENE-APPENDED GAMMA-CYCLODEXTRIN [J].