On the difference between a point multipole and an equivalent linear arrangement of point charges in force field models for vapour–liquid equilibria; partial charge based models for 59 real fluids

On the difference between a point multipole and an equivalent linear arrangement of point charges in force field models for vapour–liquid equilibria; partial charge based models for 59 real fluids
复制标题

气液平衡力场模型中点多极与点电荷等效线性排列之间的差异;

DOI:
10.1080/00268976.2011.601604
复制
发表时间:
1982
期刊:
影响因子:
1.7
通讯作者:
H. Hasse
H. Hasse
中科院分区:
化学4区
文献类型:
--
作者:
C. Engin;J. Vrabec;H. Hasse

文献摘要

参考文献

被引文献

相似文献

从汽液平衡的角度研究了两点电荷(+q,−q)和相应的三点电荷(+q,−2q,+q)的线性排列所取代的点偶极子和点四极子。分析了饱和液体密度、蒸汽压和汽化热随点装药布置中装药间距的选择而变化的规律。对于所研究的偶极双中心Lennard-Jones(2CLJD)和四极双中心Lennard-Jones(2CLJQ)模型,d/σ介于1/15和1/20之间是数值精度和物理精度之间的合理折衷,其中σ是Lennard-Jones尺寸参数。这些结果被用来从先前发表的基于点偶极和点四极的模型中推导出59种实际流体的有效部分电荷模型。
The replacement of a point dipole and a point quadrupole by a corresponding linear arrangement of two point charges (+q, −q) and accordingly three point charges (+q, −2q, +q) is studied with respect to vapour–liquid equilibria. The dependence of saturated liquid density, vapour pressure and heat of vaporization on the choice of the distancedbetween the charges in the point charge arrangement is analysed. For the studied dipolar two-centre Lennard-Jones (2CLJD) and quadrupolar two-centre Lennard-Jones (2CLJQ) models,d/σ between 1/15 and 1/20 is a reasonable compromise between numerical and physical accuracy, where σ is the Lennard-Jones size parameter. The results are used to derive validated partial charge based models of 59 real fluids from previously published point dipole and point quadrupole based models.
含有氮气、氧气、二氧化碳和乙烷的混合物的汽液平衡
DOI: --
发表时间: 2003
期刊:
影响因子: --
作者:
J. Stoll;J. Vrabec;H. Hasse
通讯作者: H. Hasse
吉布斯系综和 NPT 蒙特卡罗模拟在富 H2S 气体改进工艺开发中的应用
DOI: --
发表时间: 2004
期刊:
影响因子: --
作者:
P. Ungerer;A. Wender;Grégoire Demoulin;E. Bourasseau;P. Mougin
通讯作者: P. Mougin
DOI: 10.1021/jp012542o
发表时间: 2001-12-06
影响因子: 3.3
作者:
Vrabec, J;Stoll, J;Hasse, H
通讯作者: Hasse, H
大平衡:通过新的分子模拟方法实现气液平衡
DOI: 10.1080/00268970210153772
发表时间: 2002
期刊: Molecular Physics
影响因子: 1.7
作者:
J. Vrabec;H. Hasse
通讯作者: H. Hasse
通过分子模拟预测纯流体和一种混合物的焦耳-汤姆逊反演曲线
DOI: 10.1016/j.cryogenics.2004.10.006
发表时间: 2005
期刊: Cryogenics
影响因子: 2.1
作者:
J. Vrabec;G. Kedia;H. Hasse
通讯作者: H. Hasse