A semiempirical theory of saccharide optical activity indicates that the dominant source of Na, rotation is a vacuum-uv CD band near 150 nm, a band observed experimentally in polysaccharide film CD spectra. The model is a modification of polarizability theory in which high-energy electronic excitati
A semiempirical theory of the optical activity of saccharides
β Scribed by Eugene S. Stevens; Banlacore K. Sathyanarayana
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 787 KB
- Volume
- 166
- Category
- Article
- ISSN
- 0008-6215
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β¦ Synopsis
A semiempirical theory of optical activity of saccharides is developed that (a) goes beyond previous empirical treatments, (b) yields calculated Nan rotations which correlate well with experimental data, and (c) accounts for a characteristic c.d. band observed for polysaccharides in the vacuum U.V. spectrum. INTRODUCTJON *To whom correspondence should be addressed. +The Kronig-Kramers transform of those cd. bands yields only a small part of the observed Na, rotation.
π SIMILAR VOLUMES
Optical rotatory dispersion (ORD) and circular dichroism (CD) spectra of several j3-1,4 xylan and cellulose acetates and some of their oligomers were investigated. The CD spectra proved considerably superior in terms of information content and interpretability. Comparison of the xylan and cellulose