M. Fernandez et al., TEST OF VIBRATIONAL EIGENVECTORS FROM DIFFERENT AB-INITIO LEVELS FOR THE PYRIMIDINE MOLECULE USING INELASTIC NEUTRON-SCATTERING, Physica. B, Condensed matter, 241, 1997, pp. 475-477
We have performed ab initio calculations at different levels of theory
using GAUSSIAN92 for the pyrimidine molecule in order to test the pot
ential-energy minimum at each level. This procedure also allows us to
estimate the intermolecular interactions, to which the inelastic neutr
on scattering spectrum is sensitive, but which are absent in the quant
um-mechanical calculations. (C) 1998 Elsevier Science B.V. All rights
reserved.