A neural network protocol for predicting molecular bond energy

  • Chao Feng
  • Edward Sharman
  • Sheng Ye
  • Yi Luo
  • Jun JiangEmail author


Molecular bond energy is a key parameter for analyzing the properties of chemical activity, stability and flexibility. Calculating bond energy is a challenge due to the cost of first-principles simulations and unsatisfactory prediction using empirical formula. Here we show that a neural network (NN) machine-learning method can achieve quick prediction of bond energies of organic molecules. Using atomic species and charge information as descriptors, we trained a NN protocol and applied it to predict the bond energy in a certain chemical bond that agreed with density functional theory calculations. This protocol also provided a way to evaluate the effects of different methods of atomic charge analysis on NN training. Trained to accurately estimate bond energies, this NN protocol provides a cost-effective tool for optimizing chemical reactions, accelerating molecular design, and other important applications.


bond energy neural network density functional theory 


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This work was supported by the National Key Research and Development Program of China (2017YFA0303500, 2018YFA0208603), the National Natural Science Foundation of China (21633006, 21633007, 21790350), the Fundamental Research Funds for the Central Universities (WK2340000072). The numerical calculations in this paper have been done on the supercomputing system in the Supercomputing Center of University of Science and Technology of China and the National Supercomputing Center in Changsha.


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Copyright information

© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Chao Feng
    • 1
  • Edward Sharman
    • 2
  • Sheng Ye
    • 1
  • Yi Luo
    • 1
  • Jun Jiang
    • 1
    Email author
  1. 1.Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefeiChina
  2. 2.Department of NeurologyUniversity of CaliforniaIrvineUSA

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