Microwave spectra of tetrahydroselenophene-α13C, -β13C and molecular ring structure |
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| Authors: | AH Mamleev NM Pozdeev NN Magdesieva |
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| Institution: | Institute of Chemistry, Bashkirian Branch of Academy of Sciences of U.S.S.R., UfaU.S.S.R.;Organic Chemistry Division, Chemical Faculty, Moscow State University, MoscowU.S.S.R. |
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| Abstract: | Microwave spectra of isotopic species α-13C and β-13C of tetrahydroselenophene molecules have been investigated and rotational constants determined: A = 5608.98 Mc, B = 2819.532 Mc, C = 2022.624 Mc forα-13C isotopic species and A = 5695.94 Mc, B = 2770.714 Mc, C = 2009.166 Mc for β-13C isotopic species. The rs-ring structure was found to be Se-C2 = 1.963 Å, C2-C3 = 1.549 Å, C3-C4 = 1.527 Å, ∠C5SeC2 = 90° 44', ∠SeC2C3 = 104° 58', ∠C2C3C4 = 106° 52', the angle of twist = 29° 44'. |
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