TwoElectron Fractional Parentage Coefficients for the Configurations I^{n}
Abstract
An equation for computing the twoelectron functional parentage coefficients of the configurations l^{n} in terms of the oneelectron fractional parentage coefficients of l^{n} and l^{n1} is derived. Abbreviated tables of the twoelectron coefficients of the lowest lying terms of the d^{n} and f^{n} configurations are given. The orthogonality, charge conjugation, and symmetry properties of the twoelectron fractional parentage coefficients are discussed briefly. The use of the coefficients in calculating matrix elements of twoparticle operators is discussed, and the appropriate equations are given.
 Publication:

Journal of Chemical Physics
 Pub Date:
 April 1970
 DOI:
 10.1063/1.1673507
 Bibcode:
 1970JChPh..52.3431D