INVESTIGATION OF LIBRATIONAL MOTIONS IN GAS-PHASE CO2 CLUSTERS BY COHERENT RAMAN-SPECTROSCOPY

被引：23

作者：

BARTH, HD

HUISKEN, F

机构：

[1] Max-Planck-Institut für Strömungsforschung, D-3400 Göttingen

来源：

CHEMICAL PHYSICS LETTERS | 1990年 / 169卷 / 03期

关键词：

D O I：

10.1016/0009-2614(90)85187-H

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：

Coherent Stokes Raman scattering (CSRS) has been employed to investigate the spectroscopy of large CO2 clusters formed in the expansion of a supersonic jet. In the low-frequency range, around 72 and 88 cm-1, the cluster spectrum features two peaks which can be assigned to the excitation of librational modes. With progressive expansion, i.e. decreasing internal temperature, these peaks shift towards larger wave numbers. Comparison with the data obtained in solid CO2 shows that the cluster librations are in thermal near-equilibrium with the monomer rotations. © 1990.

引用

页码：198 / 203

页数：6

共 14 条

[1]

Anderson A, 1971, CHEM PHYS LETT, V8, P537, DOI 10.1016/0009-2614(71)80086-6

[2] FOURIER-TRANSFORM INFRARED-SPECTROSCOPY OF MOLECULAR CLUSTERS - THE STRUCTURE AND INTERNAL MOBILITY OF CLUSTERED CARBON-DIOXIDE [J].