Torsional frequency,barrier to internal rotation,and dipole moment of N-sulphinylaniline from microwave rotational spectra |
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| Authors: | W. Caminati A.M. Mirri G. Maccagnani |
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| Affiliation: | Laboratorio C.N.R. Spettroscopia Molecolare; Istituto di Chimica “G. Ciamician”, Università, Via Selmi 2, 40100 Bologna, Italy;Laboratorio C.N.R. dei Composti del Carbonio contenenti Eteroatomi; Istituto di Chimica Organica, Università, Viale Risorgimento 4, 40136 Bologna, Italy |
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| Abstract: | Microwave spectra of the ground and first three excited torsional states of N-sulphinylaniline have been assigned. The variation of the inertial defect with torsional number shows the molecule to be planar. The torsional frequency has been determined as ν = 41.1 cm?1 and the barrier to internal rotation as V2 = 2.3 kcal/mole. From the splittings of the Stark lobes of some lines the values μa = 2.20 ± 0.06, μb = 0.664 ± 0.005, and μtot = 2.30 ± 0.06 were obtained. |
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