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Title: High-Resolution Infrared Spectrum of the Ring-Puckering Band, nu(10), of Diborane

Abstract

The spectrum of the nu10 band of diborane, arising from the ring puckering vibration, has been obtained with a spectral resolution of 0.0015 cm-1 in the region 275 to 400 cm-1. The spectrum of a sample enriched in 10B was recorded as well as one with naturally abundant boron, i.e., 64% 11B2H6, 32% 10BH6 and 4% 10B2H6. This mode is the lowest vibrational level of the molecule and is unperturbed, allowing a complete assignment of not only the fundamental bands but also the 2v10 - v10 hot bands of all three boron isotopomers. The intensities of several hundred lines of the fundamental and hot bands of all isotopomers have been measured and vibrational transition moments have been obtained. Finally, it has been shown that the harmonic approximation does not apply for v10.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab., Richland, WA (US), Environmental Molecular Sciences Laboratory (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
15001353
Report Number(s):
PNNL-SA-32522
3441; KP1301030; TRN: US200412%%11
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Journal Article
Journal Name:
Journal of Molecular Spectroscopy
Additional Journal Information:
Journal Volume: 201; Journal Issue: 2; Other Information: PBD: 1 Jun 2000
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; BORANES; HARMONICS; RESOLUTION; INFRARED SPECTRA; VIBRATIONAL STATES; ENVIRONMENTAL MOLECULAR SCIENCES LABORATORY, NULL

Citation Formats

Lafferty, Walter, Flaud, J-M, Sams, Robert L., Blake, Thomas A., and Sharpe, Steven W. High-Resolution Infrared Spectrum of the Ring-Puckering Band, nu(10), of Diborane. United States: N. p., 2000. Web. doi:10.1006/jmsp.2000.8095.
Lafferty, Walter, Flaud, J-M, Sams, Robert L., Blake, Thomas A., & Sharpe, Steven W. High-Resolution Infrared Spectrum of the Ring-Puckering Band, nu(10), of Diborane. United States. doi:10.1006/jmsp.2000.8095.
Lafferty, Walter, Flaud, J-M, Sams, Robert L., Blake, Thomas A., and Sharpe, Steven W. Thu . "High-Resolution Infrared Spectrum of the Ring-Puckering Band, nu(10), of Diborane". United States. doi:10.1006/jmsp.2000.8095.
@article{osti_15001353,
title = {High-Resolution Infrared Spectrum of the Ring-Puckering Band, nu(10), of Diborane},
author = {Lafferty, Walter and Flaud, J-M and Sams, Robert L. and Blake, Thomas A. and Sharpe, Steven W.},
abstractNote = {The spectrum of the nu10 band of diborane, arising from the ring puckering vibration, has been obtained with a spectral resolution of 0.0015 cm-1 in the region 275 to 400 cm-1. The spectrum of a sample enriched in 10B was recorded as well as one with naturally abundant boron, i.e., 64% 11B2H6, 32% 10BH6 and 4% 10B2H6. This mode is the lowest vibrational level of the molecule and is unperturbed, allowing a complete assignment of not only the fundamental bands but also the 2v10 - v10 hot bands of all three boron isotopomers. The intensities of several hundred lines of the fundamental and hot bands of all isotopomers have been measured and vibrational transition moments have been obtained. Finally, it has been shown that the harmonic approximation does not apply for v10.},
doi = {10.1006/jmsp.2000.8095},
journal = {Journal of Molecular Spectroscopy},
number = 2,
volume = 201,
place = {United States},
year = {2000},
month = {6}
}