Polarized Raman optical activity in methyl antisymmetric deformations: Influence of heteroatom Rydberg orbitals

作者: L.D. Barron , L. Hecht , P.L. Polavarapu

DOI: 10.1016/0009-2614(89)87458-5

关键词: HeteroatomRaman optical activityRydberg formulaChemistryPolarizabilityPhotochemistryAntisymmetric relationRaman spectroscopyRydberg stateQuadrupoleMolecular physicsPhysical and Theoretical ChemistryGeneral Physics and Astronomy

摘要: Large deviations from the factor of 2 in ratio polarized to depolarized Raman optical activity intensities methyl antisymmetric deformations 1-phenylethanol and 1-phenylethylthiol are reported. It is suggested that these might originate large electric quadrupole contributions induced by excited-state interactions involving heteroatom Rydberg p orbitals on other parts molecule. Such appear undermine bond polarizability theory intensities.

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