Explicit polarization (X-Pol) potential using ab initio molecular orbital theory and density functional theory.

Explicit polarization (X-Pol) potential using ab initio molecular orbital theory and density functional theory.
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DOI:
10.1021/jp902710a
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发表时间:
2009-10-29
期刊:
The journal of physical chemistry. A
影响因子:
--
通讯作者:
Gao J
Gao J
中科院分区:
其他
文献类型:
--
作者:
Song L;Han J;Lin YL;Xie W;Gao J

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用从头算分子轨道理论和密度泛函理论研究了显极化(X-Pol)方法。X-Pol电位的设计为开发下一代生物分子模拟力场提供了一个新的理论框架。重要的是,X-Pol电位是一种通用的方法,可以用于任何层次的电子结构理论。本研究用从头算Hartree-Fock理论和混合密度泛函理论说明了X-Pol方法的实现。计算结果通过考虑一组小有机分子和离子与水的双分子配合物来说明。计算得到的相互作用能和氢键几何形状与CCSD(T)计算和B3LYP/aug-cc-pVDZ优化结果吻合较好。
The explicit polarization (X-Pol) method has been examined using ab initio molecular orbital theory and density functional theory. The X-Pol potential was designed to provide a novel theoretical framework for developing next-generation force fields for biomolecular simulations. Importantly, the X-Pol potential is a general method, which can be employed with any level of electronic structure theory. The present study illustrates the implementation of the X-Pol method using ab initio Hartree—Fock theory and hybrid density functional theory. The computational results are illustrated by considering a set of bimolecular complexes of small organic molecules and ions with water. The computed interaction energies and hydrogen bond geometries are in good accord with CCSD(T) calculations and B3LYP/aug-cc-pVDZ optimizations.
DOI: 10.1021/jp962833a
发表时间: 1997-01-23
影响因子: 3.3
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期刊: MOLECULAR PHYSICS
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