Polarized Raman optical activity of menthol and related molecules

Barron, L.D., Hecht, L. and Blyth, S.M. (1989) Polarized Raman optical activity of menthol and related molecules. Spectrochimica Acta Part A: Molecular Spectroscopy, 45(3), pp. 375-379. (doi: 10.1016/0584-8539(89)80104-7)

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Polarized and depolarized Raman optical activity spectra of menthol, menthyl chloride, neomenthol and neothiomenthol from 800 to 1500 cm−1 are reported. Despite axial symmetry in all the bonds, the presence of the heteroatoms O or S seems to induce large deviations from the expected ratio of 2:1 between the polarized and depolarized Raman optical activity intensities, but Cl does not. These deviations might originate in large electric quadrupole contributions induced by excited state interactions involving O or S Rydberg p orbitals and valence orbitals on other parts of the molecule. Such interactions appear to undermine the bond polarizability theory of Raman intensities.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Hecht, Dr Lutz and Barron, Professor Laurence
Authors: Barron, L.D., Hecht, L., and Blyth, S.M.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Spectrochimica Acta Part A: Molecular Spectroscopy
Publisher:Pergamon Press plc

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