Pp. Schmidt, THE EVALUATION OF MATRIX-ELEMENTS IN THE ANALYSIS OF ANHARMONIC MOLECULAR VIBRATIONS - OPTIMIZED EXPANSIONS AND QUADRATURES, International journal of quantum chemistry, 53(6), 1995, pp. 663-677
This article presents methods for computing matrix elements with Carte
sian Gaussian wave functions of potential energy operators that depend
on functions of the form (r - r0)n exp[-a(r - r0)] as well as matrix
elements of the class of polynomial many-body potentials developed by
Murrell et al. The matrix elements arise in the analyses of anharmonic
vibrations in molecules. (C) 1995 John Wiley & Sons, Inc.