Premium
Relative ordering of 4 S e , 4 D e , and 4 D o doubly excited states of lithium isoelectronic sequence
Author(s) -
Ali M. A.,
Samanta S. R.
Publication year - 2009
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.560140846
Subject(s) - excited state , atomic physics , lithium (medication) , chemistry , hartree–fock method , effective nuclear charge , spectral line , charge (physics) , wave function , sequence (biology) , physics , ion , quantum mechanics , biochemistry , medicine , organic chemistry , endocrinology
Orbital configuration classification for the lower 4 S e and 4 D e doubly excited states of lithium isoelectronic sequence is proposed as a function of the nuclear charge on the basis of Hartree‐Fock energies of 1 s 2 sns 4 S e , 1 s 2 pnp 4 S e , 1 s 2 snd 4 D e , 1 s 2 pnp 4 D e , and 1 s 2 pnd 4 D o states. It is found that the asymptotic relative order of states predicted by nuclear charge expansion method is attained by Z as low as 6. Hartree‐Fock energies of 4 D e and 4 D o states are used in conjunction with Holoien and Geltman's 4 P o and 4 P e energies to compare assignment of lines obtained in the beamfoil spectra of BeII, CIV, and NV.