Far-infrared laser stark spectroscopy of CH3OH and13CH3OH |
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Authors: | G R Sudhakaran B J Soller M Jackson I Mukhopadhyay and R M Lees |
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Institution: | (1) Department of Physics, University of Wisconsin, 54601 La Crosse, Wisconsin;(2) Department of Physics, New Mexico State University, 88003 Las Cruces, New Mexico;(3) Laser Programme, Centre for Advanced Technology, 452 013 Indore, India;(4) Department of Physics, University of New Brunswick, E3B 5A3 Fredericton, New Brunswick, Canada |
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Abstract: | The high resolution laser Stark spectra of methanol and13C-substituted methanol have been studied up to Stark fields of about 60 000V/cm with the HCN and DCN lasers. Numerous families of absorption lines have been observed in both parallel and perpendicular polarizations. For methanol, the transitions J
k
=75 64 A,
t=0; J
k
=114 103 E
l
,
t=0; and J
k
=173 162 E2,
t=0 have been identified while the assignments for13C-substituted methanol are J
k
=148 157 A,
t=0; J
k
=153 142 A+,
t=0; J
k
=107 96 A,
t=0; and J
k
=279 278 E1,
t=0. Zero-field frequencies for the assigned transitions are given with improved accuracy over those calculated from available molecular constants, especially for13CH3OH. |
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Keywords: | CH3OH 13CH3OH Stark effect far-infrared spectroscopy HCN laser DCN laser |
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