1 | Author | Kirsten Vormann, Helmut Dreizler, Hans Hübner, Wolfgang Hüttner | Requires cookie* |
Title | Methyl Internal Rotation Fine Structure in the Ground State Rotational Spectrum of Gauche Butane ![]() | ||
Abstract | The methyl torsional fine structure in the rotational spectrum of gauche butane in the vibrational ground state was investigated in the frequency range between 10 and 141 GHz. Using the internal axis method (IAM) in the formulation of Woods, all internal rotation parameters were deter-mined with high accuracy. The barrier height of the methyl internal rotation was determined to 11.34 (29) kJ/mol (2.710 (69) kcal/mol). | ||
Reference | Z. Naturforsch. 45a, 989 (1990); received May 18 1990 | ||
Published | 1990 | ||
Keywords | gauche-butane, hindered rotation, methyl group, barrier height, rotational spectrum | ||
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