An Ab Initio Study of the Ground and Low-Lying Excited States of $LiBe^+$

An Ab Initio Study of the Ground and Low-Lying Excited States of $LiBe^+$

Year:    2015

Author:    Yang You, Chuan-Lu Yang, Mei-Shan Wang, Xiao-Guang Ma, Wen-Wang Liu

Journal of Atomic and Molecular Sciences, Vol. 6 (2015), Iss. 2 : pp. 63–71

Abstract

By using multi-reference configuration interaction method and large all-electron basis sets aug-cc-pwCV5Z, we have calculated the dense potential energy curves (PECs) of $1¹Σ^+,$ $1³Σ^+,$ $1¹\Pi,$ and $1³\Pi$ states of $LiBe^+$ molecule. Based on the obtained PECs, the analytical potential energy functions (APEF) have been constructed with a Morse long-range potential function and nonlinear least squares method. The rotational and vibrational energy levels of the four states are determined by solving Schrödinger equation of nuclear movement with the APEFs. The spectroscopic parameters are deduced with the obtained rotational and vibrational energy levels.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jams.041215.051515a

Journal of Atomic and Molecular Sciences, Vol. 6 (2015), Iss. 2 : pp. 63–71

Published online:    2015-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    9

Keywords:    analytical potential energy function excited state spectroscopic parameters.

Author Details

Yang You

Chuan-Lu Yang

Mei-Shan Wang

Xiao-Guang Ma

Wen-Wang Liu

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