University Chemistry ›› 2023, Vol. 38 ›› Issue (9): 280-286.doi: 10.3866/PKU.DXHX202211018

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Comment and Improvement on "Understanding the Effect of Solvents on the Nucleophilicity of CH3O−/CH3S− Using Quantum Chemical Calculations"

Zhexuan Song, Yang Hu, Xiangyu Wu, Jing Xie()   

  • Received:2022-11-07 Accepted:2022-12-28 Published:2023-09-21
  • Contact: Jing Xie E-mail:jingxie@bit.edu.cn

Abstract:

Herein we comment on and discuss the article mentioned in the title, "Understanding the Effect of Solvents on the Nucleophilicity of CH3O−/CH3S− Using Quantum Chemical Calculations", which was published in this journal. By implementing the recent advances in solvent effect, we intend to use quantum chemistry to improve the understanding of students towards solvent effect on ion-molecular nucleophilic substitution (SN2) reactions. We have added visualization examples to demonstrate the different properties of nucleophiles CH3O− and CH3S−, uncovered the nature of how solvation weakens the nucleophilicity through comparing the potential energy profiles in gas and liquid phases, considered different types of solvents, and employed frontier molecular orbital model to illustrate the solvation effect. We anticipate the work herein can improve this teaching case as a model for organic chemistry assisted by computational chemistry.

Key words: Bimolecular nucleophilic substitution (SN2) reaction, Solvent effect, Quantum chemistry calculation, Frontier molecular orbital theory, Visualization