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Infrared spectra and resonance interaction of amide-I vibration of the antiparallel-chain pleated sheet

✍ Scribed by Yu. N. Chirgadze; N. A. Nevskaya

Publisher
Wiley (John Wiley & Sons)
Year
1976
Tongue
English
Weight
836 KB
Volume
15
Category
Article
ISSN
0006-3525

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✦ Synopsis

Abstract

Theoretical treatment of resonance interaction of amide‐I vibration has been done in a dipole–dipole approximation on the basis of perturbation theory. A single infinite antiparallel‐chain pleated sheet as well as different kinds of its finite fragments have been considered. A good agreement has been obtained between calculated spectral parameters of amide I of the infinite sheet and observed ones in infrared and Raman spectra of synthetic polypeptides and fibrous proteins. A theoretical dependence of the resonance frequency shift of the main component and frequency splitting of two components active in the infrared spectra on the number of polypeptide chains in the finite sheet has been found.

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Infrared spectra and resonance interacti
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