Low-temperature heat capacity and thermodynamic properties of crystalline [RE(Gly)3(H2O)2]Cl3•2H2O (RE = Pr, Nd, Gly = Glycine)

被引：19

作者：

Liu, BP

Tan, ZC ^{[1
]}

Lu, JL

Lan, XZ

Sun, LX

Xu, F

Yu, P

Xing, J

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 110623, Peoples R China

[2] Changde Normal Coll, Dept Chem, Changde 415000, Peoples R China

来源：

THERMOCHIMICA ACTA | 2003年 / 397卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Pr(Gly)(3)(H2O)(2)]Cl-3 center dot 2H(2)O; Nd(Gly)(3)(H2O)(2)]Cl-3 center dot 2H(2)O; heat capacity; TG analysis; rare-earth; glycine;

D O I：

10.1016/S0040-6031(02)00293-9

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Heat capacities of two solid complexes of rare-earth elements with glycine [RE(Gly)(3)(H2O)(2)]Cl-3.2H(2)O (RE = Pr, Nd, Gly = Glycine) have been measured with a high-precision automatic adiabatic calorimeter over the temperature range from 78 to 380 K. The melting point, molar enthalpy and entropy of fusion for the two complexes were determined on the basis of the heat capacity measurements. Thermal decompositions of the two complexes were studied by thermogravimetric (TG) techniques and a possible mechanism for the decompositions is suggested. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：67 / 73

页数：7

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