Refinement of molecular interaction parameters of AMBER force field for CO <inf>2</inf> and 2-methylimidazolate complexes

The intermolecular interaction between CO 2 and 2-Methylimidazole has been derived by modifying the parameters of AMBER force field to ab initio single point energies. Each energy is obtained at HF/6-31G(d). The influence of basis set superposition error (BSSE) has been taken into consideration. W...

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Main Authors: P. Puphasuk, T. Remsungnen
其他作者: Khon Kaen University
格式: Article
出版: 2018
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在線閱讀:https://repository.li.mahidol.ac.th/handle/123456789/13958
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機構: Mahidol University
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總結:The intermolecular interaction between CO 2 and 2-Methylimidazole has been derived by modifying the parameters of AMBER force field to ab initio single point energies. Each energy is obtained at HF/6-31G(d). The influence of basis set superposition error (BSSE) has been taken into consideration. We found that the BSSE correction is required for obtaining the reliable interaction energies. The Levenberg-Marquardt algorithm is used for parameters refinement. These new parameters are found to be able to represent QM data better than the original AMBER parameters. Copyright © 2012 American Scientific Publishers.