Abstract
Detailed measurements of infrared absorption and Raman scattering on crystalline acetanilide [] at low temperature show a new band close to the conventional amide I band. Equilibrium properties and spectroscopic data rule out explanations based on a conventional assignment, crystal defects, Fermi resonance, and upon frozen kinetics between two different subsystems. Thus we cannot account for this band using the concepts of conventional molecular spectroscopy, but a soliton model, similar to that proposed by Davydov for -helix in protein, is in satisfactory agreement with the experimental data.
- Received 2 April 1984
DOI:https://doi.org/10.1103/PhysRevB.30.4689
©1984 American Physical Society