Electron localizability indicator for correlated wavefunctions. II Antiparallel-spin pairs

被引:49
作者
Kohout, M
Pernal, K
Wagner, FR
Grin, Y
机构
[1] Max Planck Inst Chem Phys Fester Stoffe, D-01187 Dresden, Germany
[2] Univ Szczecin, Inst Phys, PL-70451 Szczecin, Poland
关键词
electron localizability indicator; configuration interaction; correlation;
D O I
10.1007/s00214-005-0671-y
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 electron localizability indicator for anti parallel-spin pairs is closely associated with the correlation of the motion of opposite-spin electrons. At the Hartree-Fock level this functional is constant throughout the whole space, whereas for correlated wavefunctions structures resembling atomic shells and the bonding situation emerges.
引用
收藏
页码:287 / 293
页数:7
相关论文
共 16 条
[1]  
[Anonymous], EINFUHRUNG THEORETIS
[2]   Chemical accuracy from 'Coulomb hole' extrapolated molecular quantum-mechanical calculations [J].
Bak, KL ;
Halkier, A ;
Jorgensen, P ;
Olsen, J ;
Helgaker, T ;
Klopper, W .
JOURNAL OF MOLECULAR STRUCTURE, 2001, 567 :375-384
[3]   A SIMPLE MEASURE OF ELECTRON LOCALIZATION IN ATOMIC AND MOLECULAR-SYSTEMS [J].
BECKE, AD ;
EDGECOMBE, KE .
JOURNAL OF CHEMICAL PHYSICS, 1990, 92 (09) :5397-5403
[4]  
Frisch M., 2016, Gaussian, V16
[5]   20-PARAMETER EIGENFUNCTIONS AND ENERGY VALUES OF THE GROUND STATES OF HE AND HE-LIKE IONS [J].
HART, JF ;
HERZBERG, G .
PHYSICAL REVIEW, 1957, 106 (01) :79-82
[6]   New Calculation of the Energy of Helium in the Ground-State, and the deepest Terms of Ortho-Helium [J].
Hylleraas, Egil A. .
ZEITSCHRIFT FUR PHYSIK, 1929, 54 (5-6) :347-366
[7]   A measure of electron localizability [J].
Kohout, M .
INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 2004, 97 (01) :651-658
[8]  
KOHOUT M, 2004, THEOR CHEM ACC, P112
[9]  
KOHOUT M, 2004, PROGRAM DGRID VERSIO
[10]  
KOHOUT M, 2004, PROGRAM BASIN VERS 2