Lanthanide-containing reversed micelles: A structural and luminescence study

被引：20

作者：

Beeby, A ^{[1
]}

Clarkson, IM ^{[1
]}

Eastoe, J ^{[1
]}

Faulkner, S ^{[1
]}

Warne, B ^{[1
]}

机构：

[1] UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,AVON,ENGLAND

来源：

LANGMUIR | 1997年 / 13卷 / 22期

关键词：

D O I：

10.1021/la970404d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Lanthanide surfactants of the type Ln(AOT)(3) have been prepared and characterized, where Ln = Tb, Eu, Nd, and AOT is bis(2-ethylhexyl) sulfosuccinate. Small-angle neutron scattering experiments indicate that spherical reverse micelles form in cyclohexane. The luminescence lifetimes of lanthanide ions held inside these aggregates were found to depend on the molar ratio w = [water]/[AOT(-)]. This behavior is consistent with changes in the Ln(3+) solvation: in ''dry'' micelles the ions are complexed by the surfactant polar groups, while addition of water results in progressive Ln ion hydration. The results show that reversed micelles can be used to control photophysical properties of lanthanides.

引用

页码：5816 / 5819

页数：4

共 22 条

[1] Luminescence from neodymium(III) in solution [J].