Unusual pyrene excimer formation during sodium deoxycholate gelation

被引：45

作者：

Jover, A

Meijide, F

Nunez, ER

Tato, JV

Mosquera, M

Prieto, FR

机构：

[1] UNIV SANTIAGO, DEPT QUIM FIS, FAC CIENCIAS, E-27002 LUGO, SPAIN

[2] UNIV SANTIAGO, DEPT FIS APLICADA, FAC CIENCIAS, E-27002 LUGO, SPAIN

[3] UNIV SANTIAGO, FAC QUIM, DEPT QUIM FIS, E-15706 SANTIAGO, SPAIN

来源：

LANGMUIR | 1996年 / 12卷 / 07期

关键词：

D O I：

10.1021/la9506335

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Steady-state and time-resolved fluorescence have been used to study the gelation of sodium deoxycholate at pH values close to neutrality. Pyrene was used as a probe. The results suggest the formation of pyrene excimer as a result of the aggregation process: when two clusters carrying probes form a larger one, pyrene molecules can interact in both the ground and excited states. Fluorescence lifetimes for monomer and excimer pyrene are given and favorably compared to similar systems. A structure for the aggregates is also suggested.

引用

页码：1789 / 1793

页数：5

共 56 条

[1] PHOTOCHEMICAL AND PHOTOPHYSICAL STUDIES OF ORGANIZED ASSEMBLIES - INTERACTION OF OILS, LONG-CHAIN ALCOHOLS, AND SURFACTANTS FORMING MICRO-EMULSIONS [J].