An efficient method for coupled rotation and torsion of oriented AXn1–BYn2 molecules with application to BF2BCl2

H Huihui Wang (State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Life Science, Northwest A&F University, Yangling, Shaanxi, China.) H Hongjuan Yang (State Key Laboratory of Quantum Optics Technologies and Devices, Institute of Laser Spectroscopy, Shanxi University 1 , Taiyuan 030006,) C Changyong Li L Lirong Wang (School of Life Science and Technology) Y Yonggang Yang (State Key Laboratory of Quantum Optics Technologies and Devices, Institute of Laser Spectroscopy, Shanxi University 1 , Taiyuan 030006,)

Abstract

A new and concise method to obtain the eigenvalues and eigenfunctions of a two-dimensional rotational–torsional Hamiltonian with correct boundary conditions is proposed for oriented AXn1-BYn2 type molecules. The corresponding eigenfunctions are not only eigenfunctions of the Hamiltonian but also common eigenfunctions of several symmetry operators. Numerical calculations for the lowest 1000 rotational–torsional eigenstates of BF2BCl2 demonstrate the advantages and applicability of our method.

Article Details

Volume / Issue Vol. 162, Issue 24
Published June 28, 2025
ISSN 0021-9606
Publisher American Institute of Physics

Journal Info

The Journal of Chemical Physics

American Institute of Physics

ISSN: 0021-9606 Physical Sciences

Authors (5)

H

Huihui Wang

State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Life Science, Northwest A&F University, Yangling, Shaanxi, China.

H

Hongjuan Yang

State Key Laboratory of Quantum Optics Technologies and Devices, Institute of Laser Spectroscopy, Shanxi University 1 , Taiyuan 030006,

C

Changyong Li

L

Lirong Wang

School of Life Science and Technology

Y

Yonggang Yang

State Key Laboratory of Quantum Optics Technologies and Devices, Institute of Laser Spectroscopy, Shanxi University 1 , Taiyuan 030006,