Direct observation of a 220 cm-1 structure in the lowest π-π* absorption band in the vapour phase of trans-azobenzene

被引：10

作者：

Biancalana, A

Campani, E

Di Domenico, G

Gorini, G ^{[1
]}

Iacoponi, A

Masetti, G

机构：

[1] INFM, Unita Ricerca Pisa, Pisa, Italy

[2] Univ Pisa, Dipartimento Fis, I-56100 Pisa, Italy

[3] CNR, Ist Biofis, I-56100 Pisa, Italy

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 1999年 / 55卷 / 14期

关键词：

trans-azobenzene; vapour phase; Raman bands; frequency;

D O I：

10.1016/S1386-1425(99)00110-9

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

In this work we present the first direct observation of a 220 cm(-1) progression in the absorption spectrum of trans-azobenzene in the vapour phase. The mode at 220 cm(-1) is essential to explain both the electronic absorption spectrum and the Raman excitation profiles of the most intense Raman bands of trans-azobenzene in the 1000-1600 cm(-1) shift range. Our data in the vapour phase assure that this frequency pertains to an internal molecular mode. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：2883 / 2887

页数：5

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