Infrared spectroscopy of CO trapped in an argon matrix revisited

被引：53

作者：

Abe, H

Takeo, H

Yamada, KMT

机构：

[1] NAIR, Natl Inst Adv Interdisciplinary Res, Tsukuba, Ibaraki 3058562, Japan

[2] NIMC, Natl Inst Mat & Chem Res, Tsukuba, Ibaraki 3058565, Japan

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 311卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(99)00847-7

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 infrared spectra of carbon monoxide in an argon matrix at cryogenic temperatures have been reinvestigated by FTIR spectroscopy over a wide range of experimental conditions, and new assignments are suggested for the peaks at 2136.7, 2138.5, and 2140.1 cm(-1). The former two peaks are assigned to the CO monomer, while the last peak is attributed to the CO dimer. A temperature dependence, observed for the absorption at 2138.5 and 2140.1 cm(-1), is explained by the coupling between librational modes and the lattice phonons. The increase in the CO dimer concentration upon annealing suggests the rearrangement of Ar toward the closely packed structure. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：153 / 158

页数：6

共 20 条

[1] INFRA-RED CRYOGENIC STUDIES .3. HYDROGEN HALIDES IN DOPED ARGON MATRICES [J].