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Advanced Research in Machine Learning in Chemistry

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Computational and Theoretical Chemistry".

Deadline for manuscript submissions: closed (15 December 2022) | Viewed by 6108

Special Issue Editor


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Guest Editor
Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
Interests: electronic structure theory; reaction design; machine learning; reaction mechanism; computational chemistry

Special Issue Information

Dear Colleagues,

The basic challenge in chemistry is to synthesize stable chemical compounds with desirable functionalities among an astronomical number of all the possible combinations of distinct atoms by designing efficient chemical reactions. Machine learning in recent years has emerged as a promising tool to solve some long-standing problems in chemistry. It is now applied to promote theoretical and computational chemistry, discovery of new reactions, new catalysts, and drug molecules, structural characterization, and so on. For example, machine learning has been used to predict properties of molecules and materials from large databases without doing direct first-principles calculations, or developing universal force fields or atomic potentials with qualities of quantum mechanics for general molecules or materials, or more accurate density functionals for density functional theory. Other applications of machine learning include: building more accurate quantitative structure–activity relationships, designing efficient synthetic routes for a target molecule in organic synthesis, and developing highly efficient structural characterization tools based on a combination of X-ray and spectroscopy results, and so on.

This Special Issue is designed to gather scientific papers on applications of machine learning in various subfields of chemistry. Broad applications of machine learning in theoretical and computational modeling, chemical synthesis, structural analysis, and discovery of new compounds or reactions, and other subjects, can be discussed.

Prof. Dr. Shuhua Li
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • machine learning
  • neural network
  • interatomic potentials
  • structure-activity relationship
  • density functional
  • molecular properties
  • chemical synthesis
  • structural characterization

Published Papers (2 papers)

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Research

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12 pages, 2236 KiB  
Article
Nonadiabatic Derivative Couplings Calculated Using Information of Potential Energy Surfaces without Wavefunctions: Ab Initio and Machine Learning Implementations
by Wen-Kai Chen, Sheng-Rui Wang, Xiang-Yang Liu, Wei-Hai Fang and Ganglong Cui
Molecules 2023, 28(10), 4222; https://doi.org/10.3390/molecules28104222 - 21 May 2023
Cited by 4 | Viewed by 2114
Abstract
In this work, we implemented an approximate algorithm for calculating nonadiabatic coupling matrix elements (NACMEs) of a polyatomic system with ab initio methods and machine learning (ML) models. Utilizing this algorithm, one can calculate NACMEs using only the information of potential energy surfaces [...] Read more.
In this work, we implemented an approximate algorithm for calculating nonadiabatic coupling matrix elements (NACMEs) of a polyatomic system with ab initio methods and machine learning (ML) models. Utilizing this algorithm, one can calculate NACMEs using only the information of potential energy surfaces (PESs), i.e., energies, and gradients as well as Hessian matrix elements. We used a realistic system, namely CH2NH, to compare NACMEs calculated by this approximate PES-based algorithm and the accurate wavefunction-based algorithm. Our results show that this approximate PES-based algorithm can give very accurate results comparable to the wavefunction-based algorithm except at energetically degenerate points, i.e., conical intersections. We also tested a machine learning (ML)-trained model with this approximate PES-based algorithm, which also supplied similarly accurate NACMEs but more efficiently. The advantage of this PES-based algorithm is its significant potential to combine with electronic structure methods that do not implement wavefunction-based algorithms, low-scaling energy-based fragment methods, etc., and in particular efficient ML models, to compute NACMEs. The present work could encourage further research on nonadiabatic processes of large systems simulated by ab initio nonadiabatic dynamics simulation methods in which NACMEs are always required. Full article
(This article belongs to the Special Issue Advanced Research in Machine Learning in Chemistry)
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Review

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21 pages, 2910 KiB  
Review
Machine Learning in Unmanned Systems for Chemical Synthesis
by Guoqiang Wang, Xuefei Wu, Bo Xin, Xu Gu, Gaobo Wang, Yong Zhang, Jiabao Zhao, Xu Cheng, Chunlin Chen and Jing Ma
Molecules 2023, 28(5), 2232; https://doi.org/10.3390/molecules28052232 - 27 Feb 2023
Cited by 2 | Viewed by 3641
Abstract
Chemical synthesis is state-of-the-art, and, therefore, it is generally based on chemical intuition or experience of researchers. The upgraded paradigm that incorporates automation technology and machine learning (ML) algorithms has recently been merged into almost every subdiscipline of chemical science, from material discovery [...] Read more.
Chemical synthesis is state-of-the-art, and, therefore, it is generally based on chemical intuition or experience of researchers. The upgraded paradigm that incorporates automation technology and machine learning (ML) algorithms has recently been merged into almost every subdiscipline of chemical science, from material discovery to catalyst/reaction design to synthetic route planning, which often takes the form of unmanned systems. The ML algorithms and their application scenarios in unmanned systems for chemical synthesis were presented. The prospects for strengthening the connection between reaction pathway exploration and the existing automatic reaction platform and solutions for improving autonomation through information extraction, robots, computer vision, and intelligent scheduling were proposed. Full article
(This article belongs to the Special Issue Advanced Research in Machine Learning in Chemistry)
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