Observation of a planar isomer of the OCS-(C2H2)2 trimer

被引：5

作者：

Oliaee, J. Norooz ^{[1
]}

McKellar, A. R. W. ^{[2
]}

Moazzen-Ahmadi, N. ^{[1
]}

机构：

[1] Univ Calgary, Dept Phys & Astron, Calgary, AB T2N 1N4, Canada

[2] Natl Res Council Canada, Steacie Inst Mol Sci, Ottawa, ON K1A 0R6, Canada

来源：

CHEMICAL PHYSICS LETTERS | 2011年 / 512卷 / 4-6期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ROTATIONAL SPECTRUM; INFRARED-SPECTRA; OCS DIMER; MICROWAVE-SPECTRUM; ACETYLENE; POLAR; HCCH-(OCS)(2); REGION;

D O I：

10.1016/j.cplett.2011.07.017

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：

Infrared spectra of a new planar isomer of the OCS-(C2H2)(2) trimer are observed in the region of the OCS nu(1) fundamental band (similar to 2060 cm(-1)) using a tunable diode laser to probe a pulsed supersonic slit jet expansion. Three isotopologues are analyzed in detail ((OCS)-O-16-(HCCH)(2), (OCS)-O-16-(DCCD)(2), and (OCS)-O-18-(DCCD)(2)), while the spectrum of a fourth is found to be heavily perturbed ((OCS)-O-18-(HCCH)(2)). Observed rotational constants of planar OCS-(C2H2)(2) agree fairly well with previous ab initio calculations, and with previous and present semi-empirical calculations. It should now be possible to assign the microwave spectrum of planar OCS-(C2H2)(2). (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：167 / 171

页数：5

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