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A new way of computing two‐electron integrals over Slater functions by means of optimized Gaussian expansions is proposed. Expansions up to five terms have been optimized for 1s, 2s, and 2p STOs and applied to the computation of many‐center two‐electron integrals. All these integrals can be quickly evaluated and the SCF energy computed from them is very accurate.
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Montagnani et al. (1992) studied this question.
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