Laser-induced fluorescence line-narrowing of C-60-hydroquinone crystals

被引：5
|
作者：
Ding, XY
Wright, JC
机构：
[1] Department of Chemistry, University of Wisconsin, Madison, WI 53706
来源：
CHEMICAL PHYSICS LETTERS | 1997年 / 269卷 / 3-4期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/S0009-2614(97)00280-7
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：
The low temperature optical spectroscopy of C-60-hydroquinone (C-60(HQ)(3)) crystals has been studied by fluorescence line-narrowing and total luminescence spectroscopy. The spectra are characterized by sharp zero-phonon lines and phonon sidebands of neutral C-60. Symmetric h(g) and a(g) modes and progressions in the Jahn-Teller active 260 cm(-1) h(g) squashing mode dominate the fluorescence spectra indicating the hexagonal environment of the crystal has distorted the C-60 icosahedral symmetry. There may also be a Jahn-Teller distortion of the excited state. The line-narrowing experiments show there is substantial inhomogeneous broadening because of rotational disorder in the crystal.
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页码：341 / 348
页数：8
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