Polarization effects in molecular mechanical force fields.

Polarization effects in molecular mechanical force fields.
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DOI:
10.1088/0953-8984/21/33/333102
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发表时间:
2009-08-19
期刊:
Journal of physics. Condensed matter : an Institute of Physics journal
影响因子:
--
通讯作者:
Wang J
Wang J
中科院分区:
其他
文献类型:
--
作者:
Cieplak P;Dupradeau FY;Duan Y;Wang J

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这里的重点是将电子极化纳入用于大分子模拟的经典分子力学力场中。首先,我们简要考察当前使用的分子力学力场以及量子力学方法所呈现的分子间力的现状。接下来,我们展示量子力学能量的一些组分是如何有效地纳入经典分子力学力场的。最后,我们评估一种这样的能量组分——极化能的建模方法,并对可极化力场及其当前应用进行综述。将极化效应纳入当前力场为开发可能更准确(尽管更复杂)、可用于更真实分子模拟的参数化方法铺平了道路。
The focus here is on incorporating electronic polarization into classical molecular mechanical force fields used for macromolecular simulations. First, we briefly examine currently used molecular mechanical force fields and the current status of intermolecular forces as viewed by quantum mechanical approaches. Next, we demonstrate how some components of quantum mechanical energy are effectively incorporated into classical molecular mechanical force fields. Finally, we assess the modeling methods of one such energy component—polarization energy—and present an overview of polarizable force fields and their current applications. Incorporating polarization effects into current force fields paves the way to developing potentially more accurate, though more complex, parameterizations that can be used for more realistic molecular simulations.
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