Quantum chemistry by random walk. H 2P, H+3D3h1A′1, H23Σ+u, H41Σ+g, Be 1S

The random‐walk method of solving the Schrodinger equation for molecular wavefunctions is extended to incorporate the effects of electron spin in several one‐ to four‐electron systems. Improved calculation procedures reduce computation requirements for high accuracy by a factor of about 10. Results are given for the systems H 2P, H+3 D3h 1A′1, H2 3Σ+u, linear equidistant H4 1Σ+g, and Be 1S.

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