Open AccessFull vibrational energy spectra and dissociation energies for some electronic states of diatomic alkali-metal molecules
Author(s) -
Hao Feng,
Weiguo Sun,
Tian Yin
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.023301
Subject(s) - diatomic molecule , dissociation (chemistry) , bond dissociation energy , atomic physics , molecule , alkali metal , physics , chemistry , quantum mechanics
It is difficult to obtain the accurate high-lying vibrational energies for most of the diatomic electronic states on modern experiments or theoretical computations based on quantum mechanics. Based on the new analytical formula for dissociation energy and algebraic method (AM) generated by Sun et al., the second order perturbation theory are used to study the full vibritional energies{EAMυ} and dissociation energies of the Li233Σ+g,Li213Δg,Li223Πg,Na2B1Πu and K241Σ+g electronic states. The obtained results not only agree well with the experimental data for the low-lying vibrational energies, but also give all high-lying vibrational energies which are still difficult to obtain by experiment at present. These results supply necessary data for the studies which need high-lying vibrational energies and dissociation energies of diatomic alkali-metal molecule.