NDLI: Infrared cavity ringdown spectroscopy of methanol clusters: Single donor hydrogen bonding

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Infrared cavity ringdown spectroscopy of methanol clusters: Single donor hydrogen bonding

Content Provider	Semantic Scholar
Author	Provencal, Robert Allen Paul, Joseph B. Roth, Kurt W. Chapo, Chris Casaes, R. Saykally, Richard J. Tschumper, Gregory S. Schaefer, Henry F.
Copyright Year	1999
Abstract	Infrared cavity ringdown laser absorption spectroscopy has been used to study the O–H stretching vibrations of jet-cooled methanol clusters in direct absorption. Rovibrational bands for (CH3OH)2, (CH3OH)3, and (CH3OH)4 have been measured. Both bonded and free O–H stretches were measured for the dimer, indicating that its structure is linear. Five bands were assigned to the methanol trimer, indicating the presence of a second cyclic isomer in the molecular beam. A detailed study of the free O–H stretching region shows that methanol clusters larger than dimer must exist in cyclic ring configurations. In order to facilitate spectral assignment, harmonic frequencies and infrared intensities were calculated for the methanol monomer, dimer, and trimer with second order Mo/ller–Plesset perturbation theory. Using the theoretical infrared intensities and measured vibrational band absorptions, absolute cluster concentrations were calculated. Results agree with previous experimental and theoretical work.
Starting Page	4258
Ending Page	4267
Page Count	10
File Format	PDF HTM / HTML
DOI	10.1063/1.478309
Volume Number	110
Alternate Webpage(s)	http://www.cchem.berkeley.edu/rjsgrp/publications/papers/1999/217_provencal_1999.pdf
Alternate Webpage(s)	https://doi.org/10.1063/1.478309
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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