CH2Cl2的分子动力学:远红外光谱的温度依赖性。第1部分:实验和模拟

J.K. Vij, C.J. Reid, G.J. Evans, M. Ferrario, M.W. Evans
{"title":"CH2Cl2的分子动力学:远红外光谱的温度依赖性。第1部分:实验和模拟","authors":"J.K. Vij,&nbsp;C.J. Reid,&nbsp;G.J. Evans,&nbsp;M. Ferrario,&nbsp;M.W. Evans","doi":"10.1016/0378-4487(82)80036-8","DOIUrl":null,"url":null,"abstract":"<div><p>The temperature dependence of the rotational diffusion in liquid CH<sub>2</sub>Cl<sub>2</sub> has been measured in the far infrared from 10 to 220 cm<sup>−1</sup> and 177K to 313K (f.p. to b.p. at 1bar). The results are interpreted at 177K and 293K with a molecular dynamics simulation using a 5 × 5 atom-atom potential with charge-charge electrodynamics. The simulation reproduces the basic features of the spectra but some experimental detail of the dependency of <figure><img></figure><sub>max</sub>, the far infrared peak frequency, on temperature is not followed by the simulation. The situation can be improved by accurately measuring the second dielectric virial coefficient β<sub>ϵ</sub> of CH<sub>2</sub>Cl<sub>2</sub> vapour in order to improve our knowledge of the intermolecular pair potential.</p></div>","PeriodicalId":100049,"journal":{"name":"Advances in Molecular Relaxation and Interaction Processes","volume":"22 2","pages":"Pages 79-87"},"PeriodicalIF":0.0000,"publicationDate":"1982-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0378-4487(82)80036-8","citationCount":"5","resultStr":"{\"title\":\"Molecular dynamics of CH2Cl2: temperature dependences of the far infra-red spectrum. Part 1: experimental and simulation\",\"authors\":\"J.K. Vij,&nbsp;C.J. Reid,&nbsp;G.J. Evans,&nbsp;M. Ferrario,&nbsp;M.W. Evans\",\"doi\":\"10.1016/0378-4487(82)80036-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The temperature dependence of the rotational diffusion in liquid CH<sub>2</sub>Cl<sub>2</sub> has been measured in the far infrared from 10 to 220 cm<sup>−1</sup> and 177K to 313K (f.p. to b.p. at 1bar). The results are interpreted at 177K and 293K with a molecular dynamics simulation using a 5 × 5 atom-atom potential with charge-charge electrodynamics. The simulation reproduces the basic features of the spectra but some experimental detail of the dependency of <figure><img></figure><sub>max</sub>, the far infrared peak frequency, on temperature is not followed by the simulation. The situation can be improved by accurately measuring the second dielectric virial coefficient β<sub>ϵ</sub> of CH<sub>2</sub>Cl<sub>2</sub> vapour in order to improve our knowledge of the intermolecular pair potential.</p></div>\",\"PeriodicalId\":100049,\"journal\":{\"name\":\"Advances in Molecular Relaxation and Interaction Processes\",\"volume\":\"22 2\",\"pages\":\"Pages 79-87\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1982-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0378-4487(82)80036-8\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advances in Molecular Relaxation and Interaction Processes\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0378448782800368\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Molecular Relaxation and Interaction Processes","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0378448782800368","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5

摘要

在10 ~ 220 cm−1和177K ~ 313K的远红外波段测量了CH2Cl2液体中旋转扩散的温度依赖关系(在1bar时,f.p.到b.p.)。结果在177K和293K下用5 × 5原子-原子势和电荷-电荷电动力学分子动力学模拟进行了解释。模拟重现了光谱的基本特征,但没有对远红外峰值频率max随温度变化的一些实验细节进行模拟。通过精确测量CH2Cl2蒸气的第二次介电维里系数β λ,可以改善这种情况,从而提高我们对分子间对电位的认识。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Molecular dynamics of CH2Cl2: temperature dependences of the far infra-red spectrum. Part 1: experimental and simulation

The temperature dependence of the rotational diffusion in liquid CH2Cl2 has been measured in the far infrared from 10 to 220 cm−1 and 177K to 313K (f.p. to b.p. at 1bar). The results are interpreted at 177K and 293K with a molecular dynamics simulation using a 5 × 5 atom-atom potential with charge-charge electrodynamics. The simulation reproduces the basic features of the spectra but some experimental detail of the dependency of

max, the far infrared peak frequency, on temperature is not followed by the simulation. The situation can be improved by accurately measuring the second dielectric virial coefficient βϵ of CH2Cl2 vapour in order to improve our knowledge of the intermolecular pair potential.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信