物理化学学报 >> 2011, Vol. 27 >> Issue (06): 1319-1324.doi: 10.3866/PKU.WHXB20110526

热力学,动力学和结构化学 上一篇    下一篇

四氯合锌酸正九烷铵的晶体结构及热化学性质

卢冬飞, 邸友莹, 何东华   

  1. 聊城大学化学化工学院, 山东 聊城 252059
  • 收稿日期:2011-01-26 修回日期:2011-03-23 发布日期:2011-05-31
  • 通讯作者: 邸友莹 E-mail:diyouying@126.com, diouying@lcu.edu.cn
  • 基金资助:

    国家自然科学基金(20673050, 20973089)资助项目

Crystal Structure and Thermochemical Properties of Bis(n-Nonylammonium) Tetrachlorozincate

LU Dong-Fei, DI You-Ying, HE Dong-Hua   

  1. College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, Shandong Province, P. R. China
  • Received:2011-01-26 Revised:2011-03-23 Published:2011-05-31
  • Contact: DI You-Ying E-mail:diyouying@126.com, diouying@lcu.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (20673050, 20973089).

摘要:

合成了四氯合锌酸正九烷铵复合物(C9H19NH3)2ZnCl4(s) (C9Zn(s)), 并使用X射线单晶衍射、化学分析以及元素分析确定了其晶体结构和化学组成. 利用其晶体学数据推导了C9Zn(s)的晶格能UPOT=952.94 kJ·mol-1. 在298.15 K下, 利用恒温环境溶解-反应热量计测定了C9Zn(s)在不同质量摩尔浓度下的摩尔溶解焓. 在Pitzer电解质溶液理论基础上确定了C9Zn(s)的无限稀释摩尔溶解焓ΔsΗm=20.09 kJ·mol-1, 以及Pitzer焓参数组合(4βC9H19NH3,Cl(0)L+2βZn,Cl(0)LC9H19NH3,ZnL)和(2βC9H19NH3,Cl(1)LZn,Cl(1)L)的值.

关键词: 四氯合锌酸正九烷铵, 晶格能, 无限稀释摩尔溶解焓, Pitzer参数, Pitzer理论

Abstract:

We synthesized crystalline bis(n-nonylammonium) tetrachlorozincate (C9H19NH3)2ZnCl4(s) (C9Zn(s)). X-ray single crystal diffraction, chemical analysis, and elemental analysis were used to determine the crystal structure and composition of the complex. The lattice potential energy UPOT was calculated to be 952.94 kJ·mol-1 from crystallographic data. The molar enthalpies of C9Zn(s) dissolution using various molalities were measured in double-distilled water by an isoperibol solution-reaction calorimeter at 298.15 K. According to Pitzer's electrolyte solution theory the molar enthalpy of dissolution of C9Zn(s) at infinite dilution (ΔsΗm )] was calculated to be 20.09 kJ·mol-1 and the sums of Pitzer's parameters (4βC9H19NH3,Cl(0)L+2βZn,Cl(0)LC9H19NH3,ZnL) and (2βC9H19NH3,Cl(1)LZn,Cl(1)L) were obtained.

Key words: Bis(n-nonylammonium) tetrachlorozincate, Lattice potential energy, Molar enthalpy of dissolution at infinite dilution, Pitzer’s parameter, Pitzer’s theory

MSC2000: 

  • O642