Spectroscopic evidence for Davydov-like solitons in acetanilide
G. Careri, U. Buontempo, F. Galluzzi, Alwyn Scott(Los Alamos National Laboratory), Enrico Gratton(University of Illinois Urbana-Champaign), E. Shyamsunder(University of Illinois Urbana-Champaign)
Cited by 289Open Access
Abstract
Detailed measurements of infrared absorption and Raman scattering on crystalline acetanilide [${(\mathrm{C}{H}_{3}\mathrm{CONH}{C}_{6}{H}_{5})}_{x}$] 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 $\ensuremath{\alpha}$-helix in protein, is in satisfactory agreement with the experimental data.
Related Papers
Solitons and Nonlinear Wave Equations
R. K. Dodd, Hedley Morris, J. C. Eilbeck et al.|CERN Document Server (European Organization for Nuclear Research)|1982|2k
Vibrational Spectra of Benzene Derivatives
|Elsevier eBooks|1969|1.6k