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Low-Temperature Heat Capacities and Standard Molar Enthalpy of Formation of Gramine (C11H14N2)
Chen Jingtao1,2; Kong Yuxia1; Di Youying1; Yang Weiwei1; Tan Zhicheng3
关键词Alkaloids Adiabatic Calorimetry Low-temperature Heat Capacity Oxygen-bomb Combustion Calorimetry Standard Molar Enthalpy Of Formation Thermodynamics
刊名CHINESE JOURNAL OF CHEMISTRY
2011-11-01
DOI10.1002/cjoc.201180392
29期:11页:2278-2284
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
英文摘要Low-temperature heat capacities of gramine (C11H14N2) were measured by a precision automated adiabatic calorimeter over the temperature range from 78 to 401 K. A polynomial equation of heat capacities as a function of temperature was fitted by least squares method. Based on the fitted polynomial, the smoothed heat capacities and thermodynamic functions of the compound relative to the standard reference temperature 298.15 K were calculated and tabulated at 5 K intervals. The constant-volume energy of combustion of the compound at T=298.15 K was measured by a precision oxygen-bomb combustion calorimeter as Delta(c)U=-(35336.7 +/- 13.9) J center dot g-1. The standard molar enthalpy of combustion of the compound was determined to be ?cHm0=-(6163.2 +/- 2.4) kJ center dot mol-1, according to the definition of combustion enthalpy. Finally, the standard molar enthalpy of formation of the compound was calculated to be;cHm0=-(166.2 +/- 2.8) kJ center dot mol-1 in accordance with Hess law.
语种英语
WOS记录号WOS:000297414100008
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142419
专题中国科学院大连化学物理研究所
作者单位1.Liaocheng Univ, Coll Chem & Chem Engn, Liaocheng 252059, Shandong, Peoples R China
2.Shaanxi Inst Educ, Dept Chem & Chem Engn, Xian 710061, Shaanxi, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Liaoning, Peoples R China
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Chen Jingtao,Kong Yuxia,Di Youying,et al. Low-Temperature Heat Capacities and Standard Molar Enthalpy of Formation of Gramine (C11H14N2)[J]. CHINESE JOURNAL OF CHEMISTRY,2011,29(11):2278-2284.
APA Chen Jingtao,Kong Yuxia,Di Youying,Yang Weiwei,&Tan Zhicheng.(2011).Low-Temperature Heat Capacities and Standard Molar Enthalpy of Formation of Gramine (C11H14N2).CHINESE JOURNAL OF CHEMISTRY,29(11),2278-2284.
MLA Chen Jingtao,et al."Low-Temperature Heat Capacities and Standard Molar Enthalpy of Formation of Gramine (C11H14N2)".CHINESE JOURNAL OF CHEMISTRY 29.11(2011):2278-2284.
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