期刊
JOURNAL OF CHEMICAL PHYSICS
卷 118, 期 21, 页码 9497-9503出版社
AMER INST PHYSICS
DOI: 10.1063/1.1562606
关键词
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Following the pioneering work of Jurgens-Lutovsky and Almlof [Chem. Phys. Lett. 178, 451 (1991)], a second-order Moller-Plesset program was developed which allows the use of a large basis set for the pair correlation functions and a more modest one for the self-consistent field (SCF) orbitals. For several test systems, correlation energies closely approximate the results of a large basis set calculation, at substantial savings. The SCF energy of the large basis set calculation can also be estimated using perturbation theory. (C) 2003 American Institute of Physics.
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