{"title":"四氯甲烷、苯和环己烷的热力学和振动动力学","authors":"Augustinus Asenbaum, Emmerich Wilhelm","doi":"10.1016/0378-4487(82)80005-8","DOIUrl":null,"url":null,"abstract":"<div><p>From Brillouin spectra of tetrachloromethane, benzene and cyclohexane measured between 283.15 K and 343.15 K, and carefully re-evaluated data for the heat capacities at constant pressure C<sub>P</sub>, and constant volume C<sub>V</sub>, the vibrational contribution to C<sub>V</sub> was determined and compared with calculated values obtained from the Planck-Einstein relation. Utilizing perfect gas state heat capacity data, the residual heat capacity C<sub>V</sub><sup>*</sup> wa determined and subsequently used to present an estimate for the residual rotational heat capacity (external rotation).</p></div>","PeriodicalId":100049,"journal":{"name":"Advances in Molecular Relaxation and Interaction Processes","volume":"22 3","pages":"Pages 187-198"},"PeriodicalIF":0.0000,"publicationDate":"1982-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0378-4487(82)80005-8","citationCount":"8","resultStr":"{\"title\":\"Thermodynamics and vibrational dynamics of tetrachloromethane, benzene, and cyclohexane\",\"authors\":\"Augustinus Asenbaum, Emmerich Wilhelm\",\"doi\":\"10.1016/0378-4487(82)80005-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>From Brillouin spectra of tetrachloromethane, benzene and cyclohexane measured between 283.15 K and 343.15 K, and carefully re-evaluated data for the heat capacities at constant pressure C<sub>P</sub>, and constant volume C<sub>V</sub>, the vibrational contribution to C<sub>V</sub> was determined and compared with calculated values obtained from the Planck-Einstein relation. Utilizing perfect gas state heat capacity data, the residual heat capacity C<sub>V</sub><sup>*</sup> wa determined and subsequently used to present an estimate for the residual rotational heat capacity (external rotation).</p></div>\",\"PeriodicalId\":100049,\"journal\":{\"name\":\"Advances in Molecular Relaxation and Interaction Processes\",\"volume\":\"22 3\",\"pages\":\"Pages 187-198\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1982-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0378-4487(82)80005-8\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advances in Molecular Relaxation and Interaction Processes\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0378448782800058\",\"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/0378448782800058","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Thermodynamics and vibrational dynamics of tetrachloromethane, benzene, and cyclohexane
From Brillouin spectra of tetrachloromethane, benzene and cyclohexane measured between 283.15 K and 343.15 K, and carefully re-evaluated data for the heat capacities at constant pressure CP, and constant volume CV, the vibrational contribution to CV was determined and compared with calculated values obtained from the Planck-Einstein relation. Utilizing perfect gas state heat capacity data, the residual heat capacity CV* wa determined and subsequently used to present an estimate for the residual rotational heat capacity (external rotation).
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