A variational parameter used as a multiplier of each nuclear Cartesian and electronic
coordinate chosen to minimize the variational integral and to make a trial variation
function to satisfy the virial theorem. In practical calculations, the numeral factor
to scale computed values, e.g. vibrational frequencies, to those found in experiments.
Source:
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
