Hydrogen Bonding in Alcohol Clusters:  A Comparative Study by Infrared Cavity Ringdown Laser Absorption Spectroscopy

Infrared cavity ringdown laser absorption spectroscopy has been used to study the O−H stretching vibrations of jet-cooled ethanol and butanol clusters. Three bonded O−H stretches were attributed to the ethanol dimer, indicating the presence of more than one conformer in the molecular beam. One unres...

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Veröffentlicht in:The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory Molecules, spectroscopy, kinetics, environment, & general theory, 2000-02, Vol.104 (7), p.1423-1429
Hauptverfasser: Provencal, Robert A, Casaes, Raphael N, Roth, Katja, Paul, Joshua B, Chapo, Chris N, Saykally, Richard J, Tschumper, Gregory S, Schaefer, Henry F
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container_issue 7
container_start_page 1423
container_title The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory
container_volume 104
creator Provencal, Robert A
Casaes, Raphael N
Roth, Katja
Paul, Joshua B
Chapo, Chris N
Saykally, Richard J
Tschumper, Gregory S
Schaefer, Henry F
description Infrared cavity ringdown laser absorption spectroscopy has been used to study the O−H stretching vibrations of jet-cooled ethanol and butanol clusters. Three bonded O−H stretches were attributed to the ethanol dimer, indicating the presence of more than one conformer in the molecular beam. One unresolved feature was measured for both the trimer and tetramer. To facilitate spectral assignment, the vibrational frequencies and intensities have been calculated for the ethanol dimer using second-order Moller−Plesset perturbation theory. Three bonded O−H stretches have also been measured for the butanol dimer, suggesting that more than one conformer is present in the molecular beam. Vibrational bands were also detected for the butanol trimer and tetramer.
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title Hydrogen Bonding in Alcohol Clusters:  A Comparative Study by Infrared Cavity Ringdown Laser Absorption Spectroscopy
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