Dm. Bishop et al., ADDITIONAL COMPACT FORMULAS FOR VIBRATIONAL DYNAMIC DIPOLE POLARIZABILITIES AND HYPERPOLARIZABILITIES, The Journal of chemical physics, 108(24), 1998, pp. 10013-10017
Compact expressions, complete through second order in electrical and/o
r mechanical anharmonicity, are given for the dynamic dipole vibration
al polarizability and dynamic first and second vibrational hyperpolari
zabilities. Certain contributions not previously formulated are now in
cluded. (C) 1998 American Institute of Physics.