ISSN:
0006-3525
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Detailed inelastic, incoherent neutron-scattering (INS) spectra are presented for poly-L-alanine in both the α-helical and β-sheet form. Assignments are made from previous normal coordinate calculations. Of particular interest is the methyl torsion at 230 cm-1, which is the strongest peak in the spectrum and is independent of backbone conformation. The height of the potential barrier for methyl group rotation is calculated to be 14 kJ mol-1.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/bip.1975.360140404
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