Molar heat capacity and thermodynamic properties of Lu(C5H9NO4)(C3H4N2)6(ClO4)3·5HClO4·10H2O

被引：0
作者：
X.-C. Lv
Z.-C. Tan
X.-H. Gao
P. Chen
机构：
[1] Liaoning Shihua University,School of Chemistry and Material Science
[2] Chinese Academy of Science,Division of Energy Storage and Thermochemistry Laboratory, Dalian Institute of Chemical Physics
[3] Chinese Academy of Science,China Ionic Liquid Laboratory Dalian Institute of Chemical Physics
来源：
Journal of Thermal Analysis and Calorimetry | 2013年 / 111卷
关键词：
Lu(C; H; NO; )(C; H; N; ); (ClO; ); ·5HClO; ·10H; O; Adiabatic calorimetry; Low-temperature heat capacity; Phase transition; Thermal analysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A complex of Lutetium perchloric acid coordinated with l-glutaminic acid (C5H9NO4) and imidazole (C3H4N2), Lu(C5H9NO4)(C3H4N2)6(ClO4)3·5HClO4·10H2O was synthesized and characterized. Thermodynamic properties of the complex were studied with an adiabatic calorimeter (AC) from 80 to 390 K and differential scanning calorimetry (DSC) from 100 to 300 K. Two thermal abnormalities were discovered at 220.34 and 248.47 K, which were deduced to be phase transitions. One was interpreted as a freezing-in phenomenon of the reorientational motion of ClO4− ions and the other was attributed to the orientational order/disorder process of ClO4− ions. The low-temperature molar heat capacities were measured by AC and the thermodynamic functions [HT − H298.15] and [ST − S298.15] were derived in the temperature range from 80 to 390 K with temperature interval of 5 K. Thermal decomposition behavior of the complex was studied by thermogravimetric analysis and DSC.
引用
收藏
页码：971 / 976
页数：5
相关论文
共 70 条
  • [1] Anghileri LJ(1975)On the antitumor activity of gallium and lanthanides Arzneim Forsch 25 793-795
  • [2] Sudhindra NM(1982)Syntheses and absorption spectral studies of praseodymium (III) and neodymium (III) complexes with amino acids Indian J Chem 21A 275-278
  • [3] Joshi GK(2003)Study on the complex site of Spectrochim Acta Part A 59 657-662
  • [4] Bhutra MP(2000)-tyrosine with rare-earth element Eu Biol Trace Elem Res 73 19-27
  • [5] Xu H(1996)Rare-earth element distribution characteristics of biological chains in rare-earth element-high background regions and their implications Polyhedron 15 2939-2947
  • [6] Chen L(2007)Ligand chirality effect on the structure and its spectroscopic consequences in [Ln J Therm Anal Calorim 89 283-287
  • [7] Zhang H(2003)(Ala) Thermochim Acta 397 67-73
  • [8] Feng J(2006)(H J Chem Eng Data 51 1526-1529
  • [9] Zhu W-f(2011)O) J Therm Anal Calorim 103 1119-1124
  • [10] Glowiak T(2011)](ClO J Chem Eng Data 56 1383-1387
1234567