Preferred formation of coplanar inclined fluorescent J-dimers in rhodamine 101 doped silica gels

被引：43

作者：

del Monte, F ^{[1
]}

Ferrer, ML ^{[1
]}

Levy, D ^{[1
]}

机构：

[1] CSIC, ICMM, Madrid 28049, Spain

来源：

LANGMUIR | 2001年 / 17卷 / 16期

关键词：

D O I：

10.1021/la010357w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Rhodamine 101 (R101) doped silica gels were prepared through the sol-gel process with dye concentrations ranging from 4.0 x 10(-6) to 6.4 x 10(-4) M. Excitation and emission fluorescence spectra and lifetime measurements were recorded for R101 doped silica gels in the whole range of concentrations. The photophysical behavior of the gel-glasses doped with high concentrations of R101 resembles that of fluorescent J-dimers in a coplanar inclined configuration. The formation of fluorescent J-dimers in a coplanar inclined rather than in an oblique configuration is discussed in terms of the molecular structure of R101.

引用

页码：4812 / 4817

页数：6

共 82 条

[61] FLUORESCENCE STUDY OF ALUMINOSILICATE SOLS AND GELS DOPED WITH HYDROXY TRISULFONATED PYRENE [J].