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Low-Temperature Heat Capacities and Thermodynamic Properties of Triaquabenzoatocalcium Monobenzoate [Ca(Ben)(H2O)(3)](Ben)(s) (Ben = Benzoate)
Kong, Yu-Xia1; Di, You-Ying1; Yang, Wei-Wei1; Zhang, Dan-Dan1; Tan, Zhi-Cheng2
刊名JOURNAL OF CHEMICAL AND ENGINEERING DATA
2009-08-01
DOI10.1021/je900088h
54期:8页:2256-2262
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Multidisciplinary ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]STANDARD MOLAR ENTHALPY ; ALANINE
英文摘要Triaquabenzoatocalcium monobenzoate [Ca(Ben)(H2O)(3)](Ben)(s) was synthesized by the method of liquid phase reaction. Chemical and element analyses and X-ray crystallography were used to characterize the composition and structure of the complex. The lattice potential energy of the compound was calculated to be U-POT = 426.61 kJ.mol(-1) on the basis of crystal structure information. Low-temperature heat capacities over the temperature range from (78 to 360) K were measured by an automated adiabatic calorimeter, and a polynomial equation was fitted by the least-squares method. On the basis of the fitted polynomial, the smoothed heat capacities and thermodynamic functions of the compound relative to the standard reference temperature 298.15 K were calculated at intervals of 5 K. The thermal decomposition of the complex was studied using TG and DSC analyses. In accordance with Hess's law, a reasonable thermochemical cycle was designed based on the preparation reaction of the compound. The standard molar enthalpies of dissolution for the reactants and product of the reaction in the selected solvent were measured by an isoperibol solution-reaction calorimeter. The enthalpy change of the liquid phase reaction was calculated to be Delta H-r(m)degrees = -(46:68 +/- 0.40) kJ.mol(-1), and the standard molar enthalpy of formation of the complex wits determined to be Delta H-r(m)degrees [Ca(Ben)(H2O)(3)](Ben),s = -(2088.2 +/- 1.1) kJ.mol(-1) by means of the enthalpy change of the reaction and other auxiliary thermodynamic quantities.
语种英语
WOS记录号WOS:000268796600017
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被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/141445
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.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
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Kong, Yu-Xia,Di, You-Ying,Yang, Wei-Wei,et al. Low-Temperature Heat Capacities and Thermodynamic Properties of Triaquabenzoatocalcium Monobenzoate [Ca(Ben)(H2O)(3)](Ben)(s) (Ben = Benzoate)[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2009,54(8):2256-2262.
APA Kong, Yu-Xia,Di, You-Ying,Yang, Wei-Wei,Zhang, Dan-Dan,&Tan, Zhi-Cheng.(2009).Low-Temperature Heat Capacities and Thermodynamic Properties of Triaquabenzoatocalcium Monobenzoate [Ca(Ben)(H2O)(3)](Ben)(s) (Ben = Benzoate).JOURNAL OF CHEMICAL AND ENGINEERING DATA,54(8),2256-2262.
MLA Kong, Yu-Xia,et al."Low-Temperature Heat Capacities and Thermodynamic Properties of Triaquabenzoatocalcium Monobenzoate [Ca(Ben)(H2O)(3)](Ben)(s) (Ben = Benzoate)".JOURNAL OF CHEMICAL AND ENGINEERING DATA 54.8(2009):2256-2262.
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