BENCHMARK CALCULATIONS FOR 2-ELECTRON SYSTEMS USING EXPLICITLY CORRELATED GAUSSIAN FUNCTIONS

被引:91
作者
CENCEK, W [1 ]
KOMASA, J [1 ]
RYCHLEWSKI, J [1 ]
机构
[1] ADAM MICKIEWICZ UNIV POZNAN,POZNAN SUPERCOMP & NETWORKING CTR,PL-61712 POZNAN,POLAND
关键词
D O I
10.1016/0009-2614(95)01146-8
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Explicitly correlated Gaussian functions and nonlinear optimization techniques have been used to calculate Bom-Oppenheimer energies of the ground states of H-3(+) and HeH+ ions and several excited states of the hydrogen molecule at equilibrium nuclear configurations. In all the cases the results are more accurate than any previously reported.
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页码:417 / 420
页数:4
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