Methyl torsion Raman optical activity in (2S,3S)-(-)2,3-epoxybutane

Barron, L.D. and Vrbancich, J. (1983) Methyl torsion Raman optical activity in (2S,3S)-(-)2,3-epoxybutane. Molecular Physics, 48(4), pp. 833-845. (doi: 10.1080/00268978300100601)

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The Raman optical activity in the in-phase (A) methyl torsion fundamental of (2S,3S)-(-)2,3-epoxybutane is calculated using the general origin-invariant bond polarizability theory. The sign and magnitude are found to depend on the difference between the polarizability anisotropies of the ring carbon-methyl group and the ring carbon-hydrogen bond. The depolarized Raman circular intensity sum and difference spectra of (2S,3S)-(-)2,3-epoxybutane and (S)-(-)epoxypropane are presented, and a confident assignment of the in-phase methyl torsion fundamental in the former species allows a direct comparison between theory and experiment. Good agreement is found on the basis of available bond polarizability data.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Barron, Professor Laurence
Authors: Barron, L.D., and Vrbancich, J.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Molecular Physics
Publisher:Taylor & Francis
ISSN (Online):1362-3028

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