The liquid-state structure of difluoromethane

被引：3

作者：

Mort, KA

Johnson, KA ^{[1
]}

Burgess, AN

机构：

[1] Univ Liverpool, Dept Chem, Liverpool L69 7ZD, Merseyside, England

[2] ICI Technol, Runcorn WA7 4QE, Cheshire, England

来源：

MOLECULAR PHYSICS | 2000年 / 98卷 / 15期

关键词：

D O I：

10.1080/00268970050052042

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Neutron scattering experiments have been performed on liquid difluoromethane (CH(2)F(2), R32) resulting in the first experimental determination of the total structure factor and total pair distribution function of difluoromethane. Analysis of the measurements has led to the liquid-state intramolecular structure of this fluid. The structure has been compared with that obtained for some other halogenated methanes. A comparison with results obtained for trifluoromethane (CHF(3), R23) suggests that there is less long-range order in liquid-state difluoromethane than trifluoromethane. Subtraction of the intramolecular structure leads to an intermolecular structure factor and an intermolecular pair distribution function, both of which are crucially important for assessing the reliability of models of the pair potentials used in computer simulations.

引用

页码：999 / 1003

页数：5

共 12 条

[1] Molecular dynamics study of liquid CH2F2 (HFC-32) [J].