Fragmentation at sp2 carbon atoms in fragment molecular orbital method
© 2020 Wiley Periodicals, Inc.
| Publié dans: | Journal of computational chemistry. - 1984. - 41(2020), 15 vom: 05. Juni, Seite 1416-1420 |
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| Auteur principal: | |
| Autres auteurs: | , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2020
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| Accès à la collection: | Journal of computational chemistry |
| Sujets: | Journal Article fragment molecular orbital method molecular fragmentation peptide bond sp2 carbon atom |
| Résumé: | © 2020 Wiley Periodicals, Inc. In the fragment molecular orbital (FMO) method, a given molecular system is usually fragmented at sp3 carbon atoms. However, fragmentation at different sites sometimes becomes necessary. Hence, we propose fragmentation at sp2 carbon atoms in the FMO method. Projection operators are constructed using sp2 local orbitals. To maintain practical accuracy, it is essential to consider the three-body effect. In order to suppress the corresponding increase of computational cost, we propose approximate models considering local trimers. Numerical verification shows that the present models are as accurate as or better than the standard FMO2 method in total energy with fragmentation at sp3 carbon atoms |
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| Description: | Date Revised 28.04.2020 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
| ISSN: | 1096-987X |
| DOI: | 10.1002/jcc.26190 |