OPTICAL HIGH-RESOLUTION STUDY OF QUINIZARIN ADSORBED ON GAMMA-ALUMINA POWDER - INDICATION OF LOW-FREQUENCY ADSORBATE MOTIONS

被引：4

作者：

BASCHE, T

BRAUCHLE, C

机构：

[1] Institut für Physikalische Chemie der Universität München, D-8000 München 2

来源：

JOURNAL OF MOLECULAR STRUCTURE | 1990年 / 218卷

关键词：

D O I：

10.1016/0022-2860(90)80298-X

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：

Quinizarin adsorbed on γ-alumina was investigated with the optical high resolution methods fluorescence line narrowing (FLN) and persistent spectral hole burning (PSHB). Fluorescence excitation spectra showed an absorption red shift of about 35 nm for adsorbed quinizarin. The FLN spctra indicate a coupling of low frequency adsorbate motions to the electronic transitions of the adsorbed molecules. Such motions may represent an effective dephasing mechanism leading to an increased width of spectral holes when compared to matrixdoped molecules. © 1990.

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页码：387 / 392

页数：6

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