Low-temperature heat capacities and thermodynamic properties of ethylenediammonium tetrachlorozincate chloride (C2H10N2)(2)(ZnCl4)Cl-2

	Low-temperature heat capacities and thermodynamic properties of ethylenediammonium tetrachlorozincate chloride (C2H10N2)(2)(ZnCl4)Cl-2
	He, Dong-Hua 1; Di, You-Ying 1; Wang, Bin 1; Dan, Wen-Yan 1; Tan, Zhi-Cheng 2
刊名	thermochimica acta
	2010-07-10
卷号	506 期号:1-2 页码:41-46
关键词	Ethylenediammonium tetrachlorozincate chloride X-ray crystallography Low-temperature heat capacity Isoperibol solution-reaction calorimetry Standard molar enthalpy of formation
英文摘要	the 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.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, analytical ; chemistry, physical
研究领域[WOS]	chemistry
关键词[WOS]	magnetic-properties ; enthalpy ; crystal
收录类别	SCI
语种	英语
WOS记录号	WOS:000280280200007
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/141929]
专题	大连化学物理研究所_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, Liaoning, Peoples R China
推荐引用方式 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.