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题名: Lattice potential energies and thermochemical properties of triethylammonium halides (Et3NHX) (X = Cl, Br, and I)
作者: Liu, Yu-Pu1;  Tan, Zhi-Cheng2, 3;  Di, You-Ying1;  Xing, Yi-Ting1;  Zhang, Peng1
关键词: Triethylammonium halides ;  X-ray diffraction ;  Lattice potential energy ;  Molar enthalpies of dissolution at infinite dilution ;  Hydration enthalpy
刊名: JOURNAL OF CHEMICAL THERMODYNAMICS
发表日期: 2012-02-01
DOI: 10.1016/j.jct.2011.09.013
卷: 45, 期:1, 页:100-108
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Thermodynamics ;  Chemistry, Physical
研究领域[WOS]: Thermodynamics ;  Chemistry
英文摘要: A series of triethylammonium halides (Et3NHCl, Et3NHBr, and Et(3)NH1) was synthesized. The crystal structures of the three compounds were characterized by X-ray crystallography. The lattice potential energies and ionic radius of the common cation of the three compounds were obtained from crystallographic data. Molar enthalpies of dissolution of the compounds at various values of molality were measured in the double-distilled water at T = 298.150 K by means of an isoperibol solution-reaction calorimeter. According to Pitzer's theory, the values of molar enthalpies of dissolution at infinite dilution and Pitzer's parameters of the compounds were obtained. The values of apparent relative molar enthalpies, relative partial molar enthalpies of the solvent and the compounds at different molalities were derived from the experimental values of molar enthalpies of dissolution of the compounds. Finally, hydration enthalpy of the common cation Et3NH+ was calculated to be Delta H+ = (150.386 +/- 4.071) kJ . mol(-1) by designing a thermochemical cycle. (C) 2011 Elsevier Ltd. All rights reserved.
关键词[WOS]: LOW-TEMPERATURE ;  CRYSTAL-STRUCTURE ;  ENTHALPY ;  THERMODYNAMICS ;  REDETERMINATION ;  CHLORIDE ;  VOLUMES
语种: 英语
WOS记录号: WOS:000297830800014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143033
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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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, China Ionic Liquid Lab, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Liu, Yu-Pu,Tan, Zhi-Cheng,Di, You-Ying,et al. Lattice potential energies and thermochemical properties of triethylammonium halides (Et3NHX) (X = Cl, Br, and I)[J]. JOURNAL OF CHEMICAL THERMODYNAMICS,2012,45(1):100-108.
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