An analysis of the high-resolution infrared spectrum of the v[sub 3] band of formyl chloride

Journal Article · Wed Sep 01 04:00:00 EDT 1993 · Journal of Molecular Spectroscopy; (United States)

DOI:https://doi.org/10.1006/jmsp.1993.1221· OSTI ID:5623829

Joo, D L; Clouthier, D J ^[1]; Lau, B; Merer, A J ^[2]

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1. Univ. of Kentucky, Lexington, KY (United States)
2. Univ. of British Columbia, Vancouver (Canada)

The first high-resolution (0.002 cm[sup [minus]1]) infrared spectrum of the transient molecule formyl chloride, HCOCl, is reported. The v[sub 3] type A/B hybrid band between 1220 and 1390 cm[sup [minus]1] has been analyzed in detail, providing assignments for the A- and B-type lines of both HCO [sup 35]Cl and HCO[sup 37]Cl. The ground state rotational constants have been refined by a simultaneous fitting of previously reported microwave data and combination differences from the v[sub 3] and v[sub 6] bands of HCOCl. The excited state constants of both isotopomers have been obtained from fitting assignments over a wide range of J and K[sub a] values. By comparing relative intensities, the authors estimate the ratio of the B-type to A-type transition moments to be 0.25 [+-] 0.1. The v[sub 3] band shows only minor perturbations.

• DOE Contract Number: FG05-86ER13544
• OSTI ID: 5623829
• Journal Information: Journal of Molecular Spectroscopy; (United States), Journal Name: Journal of Molecular Spectroscopy; (United States) Vol. 161:1; ISSN JMOSA3; ISSN 0022-2852
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
ENERGY LEVELS
EXCITED STATES
GROUND STATES
INFRARED SPECTRA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ROTATIONAL STATES
SPECTRA