Poly(L-serine) is a poly(amino acid) having a side group (-CH2OH). It
is found to exist in an anti-parallel beta sheet structure. A study of
complete normal modes and their dispersion has been carried out using
Higg's modification of Wilson's GF matrix method and the Urey-Bradley
force field. The constants of the field have been best fitted to the
Fourier transform infra-red and Raman frequencies. Repulsion and excha
nge df character between various pairs of modes have been observed. He
at capacity as a function of temperature, obtained from the dispersion
curves via density-of-states, is in good agreement with the measureme
nts of Roles et al. (Biopolymers, 1993, 33, 753). (C) 1997 Elsevier Sc
ience Ltd.