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Statistical electron correlation coefficients for 29 states of the heliumlike ions
Author(s) -
Cann Natalie Mary,
Boyd Russell J.,
Thakkar Ajit J.
Publication year - 1993
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560480807
Subject(s) - ion , electronic correlation , atomic physics , chemistry , electron , physics , quantum mechanics , organic chemistry
Statistical electron correlation coefficients provide overall measures of the difference between the electron pair density and the product of one‐electron densities. Explicitly correlated wave functions are used to compute radial and angular correlation coefficients for 29 low‐lying states ( n 1 S, n 3 S, n 1 P, n 3 P, n 1 D, and n 3 D with n < 7) of the two‐electron ions from helium through Ne 8+ . This data base of 1566 correlation coefficients permits a systematic study of trends with respect to variation of nuclear charge, degree of excitation, angular momentum, and spin multiplicity. © 1993 John Wiley & Sons, Inc.