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Forbidden Rotational Transitions in the Microwave Spectrum of the Trans-Conformer of the Isopropyl Alcohol Molecule

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Journal of Applied Spectroscopy Aims and scope

Forbidden transitions are found in the microwave rotational spectrum of the trans-conformer of the (CH3)2CHOH molecule at frequencies of 25,900–78,060 MHz. Components μb and μc of a dipole moment are found in the symmetry plane of this molecule, while the component μa = 0. In molecules of this type, an induced component of the dipole moment μa perpendicular to the symmetry plane of the molecule is generated by centrifugal perturbations. This leads to the appearance of rotational transitions that are forbidden in the rigid top model. Forbidden "centrifugal" transitions of the trans-conformer of the (CH3)2CHOH molecule are detected. 70 forbidden μa-transitions with rotational quantum numbers up to and including J = 35 have been identifi ed.

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Authors and Affiliations

  1. Institute of Physics, Azerbaijan National Academy of Sciences, 33 H. Javid Ave., Baku, AZ-1143, Azerbaijan

    S. B. Kazimova

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  1. S. B. Kazimova
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Correspondence to S. B. Kazimova.

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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 82, No. 2, pp. 305–308, March–April, 2015.

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Kazimova, S.B. Forbidden Rotational Transitions in the Microwave Spectrum of the Trans-Conformer of the Isopropyl Alcohol Molecule. J Appl Spectrosc 82, 298–302 (2015). https://doi.org/10.1007/s10812-015-0101-4

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  • DOI: https://doi.org/10.1007/s10812-015-0101-4

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