可转移的无otropic Mie 潜在力场用于基二醇
Maximilian Fleck1, Samir Darouich1, Niels Hansen1
1Institute of Thermodynamics and Thermal Process Engineering, University of Stuttgart, Pfaffenwaldring 9, 70569 Stuttgart, Germany.
这项研究将可转移的异构性Mie (TAMie) 潜力扩展到二醇,准确预测相位平衡和粘度. 该力场平衡了多功能分子的分子内和分子间的键.
科学领域:
- 计算化学计算化学
- 分子建模分子建模
- 物理化学 物理化学
背景情况:
- 开发精确的力场对于多功能分子如二醇是具有挑战性的,因为竞争的内部和分子间键.
- 了解气态与液态中的分子构造对于准确的模拟至关重要.
研究的目的:
- 为了扩展可转移的异构性Mie (TAMie) 潜力,以建模1,n-二醇.
- 通过平衡结相互作用,为二醇开发精确的力场参数.
主要方法:
- 应用了从1-酒精到1,5-二醇和更长的二醇的可转移的异性热性Mie (TAMie) 潜在参数.
- 参数化分子内二面体能量功能和电荷-电荷相互作用,以平衡键.
- 利用负担组方法来评估功能组内部和功能组之间的相互作用.
主要成果:
- 与较长的二醇的实验相位平衡数据达成良好一致.
- 通过平衡结,成功地复制了1,2-乙二醇和1,3-二醇的实验性横左比.
- 证明了从1酒精中获得的非结合参数可以在没有进一步精制的情况下应用于二醇.
结论:
- 扩展的TAMie潜力准确地模拟了二醇,捕获了基本的形状偏好和相位行为.
- 开发的力场为模拟多功能分子提供了可靠的工具,这对于理解它们的物理性质至关重要.
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