Accurate adiabatic correction for the hydrogen molecule using the Born-Handy formula

被引:62
作者
Cencek, W [1 ]
Kutzelnigg, W [1 ]
机构
[1] ADAM MICKIEWICZ UNIV POZNAN,DEPT CHEM,PL-60780 POZNAN,POLAND
关键词
D O I
10.1016/S0009-2614(97)00017-1
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
The adiabatic correction has been computed for the ground state of the hydrogen molecule at R = 1.4 bohr using the formula suggested by Handy - that avoids the specification of the relative coordinates - and Gaussian geminal wavefunctions. It is demonstrated that this method allows one to obtain easily very accurate results. The computed value for H-2 has an accuracy of 10(-4) cm(-1). (C) 1997 Published by Elsevier Science B.V.
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页码:383 / 387
页数:5
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