GROUND-STATE MOLECULAR PAIR FORMATION IN AMORPHOUS ANTHRACENE DEPOSITED ONTO A METAL-SUBSTRATE AT INTERMEDIATE TEMPERATURES

被引：16

作者：

ISHII, K

NAKAYAMA, H

YAGASAKI, Y

ANDO, K

KAWAHARA, M

机构：

[1] Department of Chemistry, Gakushuin University, Toshimaku, Tokyo, 171

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 222卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(94)00334-3

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：

Anthracene films deposited onto cold metal substrates in vacuum were studied by Raman spectroscopy. They were found to be amorphous but weakly indicated the formation of some molecular pairs with close contacts when the substrate temperature at deposition was set at around 120 K. Fluorescence measurements showed that these molecular pairs in the electronic ground state are the source of the previously reported excimer fluorescence. This local ordering in amorphous anthracene seems to inhibit the system from crystallization which starts at around 200 K if the sample is highly disordered.

引用

页码：117 / 122

页数：6

共 12 条

[1]

ELLIOTT S, 1990, PHYSICS AMORPHOUS MA

[2] STRUCTURAL RELAXATIONS IN AMORPHOUS MOLECULAR-SYSTEMS - RAMAN-SPECTROSCOPIC STUDIES [J].