STRUCTURE AND PHOTOPHYSICS IN C-60-MICELLAR SOLUTIONS

被引：69

作者：

EASTOE, J

CROOKS, ER

BEEBY, A

HEENAN, RK

机构：

[1] UNIV DURHAM,DEPT CHEM,DURHAM DH1 3LE,ENGLAND

[2] RUTHERFORD APPLETON LAB,EPSRC,ISIS,CHILTON OX11 0QZ,OXON,ENGLAND

来源：

CHEMICAL PHYSICS LETTERS | 1995年 / 245卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/0009-2614(95)01059-I

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Routes to the preparation of monomeric and colloidal C-60 in micellar solutions of non-ionic surfactants are described. UV-visible spectra and small-angle neutron scattering provide clear evidence for these two different forms. The micelles serve to stabilise the excited triplet state C-3(60) and the lifetime tau(T) is increased by a factor of 3 as compared to C-3(60) in toluene. Furthermore, with monomeric dispersions in the presence of the electron donor DABCO, the radical anion C-60(-) is formed, with an unusually long lifetime tau(A) = 16 ms. This lifetime is approximately 270 times longer than for gamma-cyclodextrin-stabilised systems.

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页码：571 / 577

页数：7

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