Semi-analytic evaluation of 1, 2 and 3-electron Coulomb integrals with Gaussian expansion of distance operators w= RC1−nRD1−m, RC1−nr12−m, r12−n r13−m
Reference10 articles.
1. A. Szabo, N.S. Ostlund: Modern Quant. Chem.: Intro. Adv. Electr. Struct. Theory, 1982, McMillan, NY.
2. Analytic evaluation for integrals of product Gaussians with different moments of distance operators (RC1−nRD1−m, RC1−nr12−m and r12−n r13−m with n, m=0,1,2), useful in Coulomb integrals for one, two and three-electron operators
3. R12 methods in explicitly correlated molecular electronic structure theory
4. Multi-electron integrals
5. Equipotential surfaces of the model reaction H+H2: Struggling with three dimensions