Torsion of the nitro group in nitroethylene |
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| Authors: | R Meyer A Gammeter P Smith H Kühne P Nösberger Hs Günthard |
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| Institution: | Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, Universitätstrasse 22, CH-8006 Zurich, Switzerland |
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| Abstract: | Eight NO2-torsional transition frequencies obtained from interferometric far infrared measurements are reported. These data provide accurate information on the potential function for torsional angles up to 50°. The potential parameters are V2 = 1642.7 ± 3.9 cm?1 and V4 = ?88.0 ± 1.7 cm?1 for a rigid frame/rigid top model and V2 = 1690.6 ± 4.2 cm?1 and V4 = ?90.8 ± 1.8 cm?1 for a refined model allowing for distortions of the NO2-group upon torsion. V6 and V8 terms are not significant. |
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