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Low-temperature heat capacities and thermodynamic properties of ethylenediammonium tetrachlorozincate chloride (C2H10N2)(2)(ZnCl4)Cl-2
He, Dong-Hua1; Di, You-Ying1; Wang, Bin1; Dan, Wen-Yan1; Tan, Zhi-Cheng2
KeywordEthylenediammonium Tetrachlorozincate Chloride X-ray Crystallography Low-temperature Heat Capacity Isoperibol Solution-reaction Calorimetry Standard Molar Enthalpy Of Formation
Source PublicationTHERMOCHIMICA ACTA
2010-07-10
DOI10.1016/j.tca.2010.04.012
Volume506Issue:1-2Pages:41-46
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Analytical ; Chemistry, Physical
WOS Research AreaChemistry
WOS KeywordMAGNETIC-PROPERTIES ; ENTHALPY ; CRYSTAL
AbstractThe ethylenediammonium tetrachlorozincate chloride (C2H10N2)(2)(ZnCl4)Cl-2 was synthesized. Chemical analysis, elemental analysis, and X-ray crystallography were applied to characterize the composition and crystal structure of the complex. Low-temperature heat capacities of the compound were measured by a precision automatic adiabatic calorimeter over the temperature range from T=77-377 K. A polynomial equation of heat capacities as a function of the reduced temperature was fitted by a least square method. Based on the Polynomial equation, the smoothed heat capacities and thermodynamic functions of the title compound relative to the standard reference temperature 298.15 K were calculated at intervals of 5K. A thermochemical cycle was designed and the enthalpy change of the solid phase reaction of ethylenediamine dihydrochloride with zinc chloride was determined to be Delta H-r(m)degrees = -(17.9 +/- 0.6) kJ mol(-1) by an isoperibol solution-reaction calorimeter. Finally, the standard molar enthalpy of formation of the title compound was derived to be Delta H-f(m)degrees[(C2H10N2)(2)(ZnCl4)Cl-2 center dot s] = -(1514.4 +/- 2.7) kJ mol(-1) in accordance with Hess law. (C) 2010 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000280280200007
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/141929
Collection中国科学院大连化学物理研究所
Affiliation1.Liaocheng Univ, Coll Chem & Chem Engn, Liaocheng 252059, Shandong, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
He, Dong-Hua,Di, You-Ying,Wang, Bin,et al. Low-temperature heat capacities and thermodynamic properties of ethylenediammonium tetrachlorozincate chloride (C2H10N2)(2)(ZnCl4)Cl-2[J]. THERMOCHIMICA ACTA,2010,506(1-2):41-46.
APA He, Dong-Hua,Di, You-Ying,Wang, Bin,Dan, Wen-Yan,&Tan, Zhi-Cheng.(2010).Low-temperature heat capacities and thermodynamic properties of ethylenediammonium tetrachlorozincate chloride (C2H10N2)(2)(ZnCl4)Cl-2.THERMOCHIMICA ACTA,506(1-2),41-46.
MLA He, Dong-Hua,et al."Low-temperature heat capacities and thermodynamic properties of ethylenediammonium tetrachlorozincate chloride (C2H10N2)(2)(ZnCl4)Cl-2".THERMOCHIMICA ACTA 506.1-2(2010):41-46.
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