University Chemistry ›› 2025, Vol. 40 ›› Issue (10): 257-262.doi: 10.12461/PKU.DXHX202411049

• Chemistry Laboratory • Previous Articles     Next Articles

Constructing High-Precision Potential Energy Surfaces Based on Physical Models: A Comprehensive Computational Chemistry Experiment

Xiaolong Zhang, Mingshan Jin, Shaoli Liu, Bingfei Yan, Yun Li   

  1. School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, Shandong Province, China
  • Received:2024-11-11 Accepted:2025-02-14 Published:2025-09-17
  • Contact: Xiaolong Zhang E-mail:xiaolongzhang@ytu.edu.cn

Abstract: Potential energy surfaces play a pivotal role in predicting chemical reaction pathways, molecular spectroscopy, and simulating kinetic processes. While most existing undergraduate computational chemistry experiments emphasize using commercial software for potential energy surface fitting, they seldom incorporate programming components. This experiment employs Fortran programming to construct the Morse/Long-Range potential energy surface for CO-He complexes. Designed to enhance students' programming proficiency and deepen their theoretical understanding of potential energy surfaces, this experiment provides essential groundwork for future scientific research.

Key words: Computational chemistry experiment, Potential energy surface, Morse/Long-Range potential, van der Waals interactions