University Chemistry ›› 2025, Vol. 40 ›› Issue (3): 100-107.doi: 10.12461/PKU.DXHX202405074

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Energy Decomposition Analysis and Its Application in the Many-Body Effect of Water Clusters

Xingyuan Lu1, Yutao Yao1, Junjing Gu1,2,3, Peifeng Su1,2,3   

  1. 1 College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian Province, China;
    2 Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen 361005, Fujian Province, China;
    3 State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen 361005, Fujian Province, China
  • Received:2024-05-07 Accepted:2024-08-14 Published:2025-03-19
  • Contact: Peifeng Su E-mail:supi@xmu.edu.cn

Abstract: Energy decomposition analysis (EDA) is a quantitative theoretical method for studying molecular interactions. It has been widely applied in various fields including molecule self-assembly, drug design, mechanism of chemical reactions, and development of force fields. The existing undergraduate chemistry curriculum, however, often provides superficial explanations of molecular interactions, sometimes with inconsistencies. To deepen undergraduates’ understanding of molecular interactions, this article briefly outlines the basic concepts of EDA and introduces the representative GKS-EDA method, along with its study of multi-body effects in hexamer water systems.

Key words: Energy decomposition analysis, Water cluster, Many-body effect