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- W2021006540 abstract "Using ab initio calculations based on density functional theory, an equivalent potential of water molecules for the electronic structure of Ala in solution has been obtained. The calculation process consists of three steps: first, the geometric structure of Ala + nH2O system is determined by searching for the lowest energy of the system using free cluster calculation method. Second, based on the geometric structure obtained, the electronic structure of Ala with the potential of water molecules is calculated using a self-consistent cluster-embedding method. Finally, after replacing water molecules with dipoles, the electronic structure of Ala with the potential of dipoles is calculated. The dipoles are adjusted so the electronic structure of Ala with the potential of dipoles is close to that of water molecules. The calculated results show that the main effect of water molecules is to raise the state for methyl CH3 by about 0.14 Ry, raising all other eigenvalues by about 0.059 Ry, and widening the energy gap by about 25%. In contrast, the replacement of water molecules by dipoles is comparatively efficient, showing that the effect of water molecules on the electronic structure of Ala can be simulated by a dipole potential, which would be a shortcut calculation." @default.
- W2021006540 created "2016-06-24" @default.
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- W2021006540 date "2008-06-10" @default.
- W2021006540 modified "2023-10-16" @default.
- W2021006540 title "The equivalent potential of water molecules for electronic structure of alanine" @default.
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- W2021006540 doi "https://doi.org/10.1080/00268970802245184" @default.
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