Millimetr wave measurements of the rotational spectra of ClF, BrF, BrCl, ICl, and IBr

Article abstract of DOI:10.1063/1.439780

The rotational spectra of all twelve stable isotopic species of ClF, BrF, BrCl, ICl, and IBr were abserved and measured in the millimeter wave region by means of a sensitive microwave spectrometer.Transitions were detected over a wide range of frequencies for molecules in both the ground vibrational state and several excites states.The rotational spectrum of each molecule was split by the nuclear quadrupole interaction.Altogether, 250 new lines were measured.These correspond to 136 purw rotational transitions.Values of the Dunham coefficients Y₀₁, Y₁₁, Y₂₁, Y₃₁, Y₀₂, Y₁₂, and Y₀₃ were obtained from a computer analysis of the measured frequencies.From these coefficients a number of equilibrium constants were derived to significantly greater accuracy than in previous work.In particular, the equilibrium distance, r_e, was found to two or three more significant figures.

Full text of DOI:10.1063/1.439780

Millimeter wave measurements of the rotational spectra of ClF, BrF, BrCl, ICl, and IBr
Robert E. Willis Jr. and William W. Clark III
Citation: The Journal of Chemical Physics 72, 4946 (1980); doi: 10.1063/1.439780
View online: http://dx.doi.org/10.1063/1.439780
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/72/9?ver=pdfcov
Published by the AIP Publishing
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
130.209.6.50 On: Sat, 20 Dec 2014 03:56:47

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP: 130.209.6.50
On: Sat, 20 Dec 2014 03:56:47

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
130.209.6.50 On: Sat, 20 Dec 2014 03:56:47

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
130.209.6.50 On: Sat, 20 Dec 2014 03:56:47

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
130.209.6.50 On: Sat, 20 Dec 2014 03:56:47