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Calorimetric study and thermal analysis of [Gd4/3Y2/3(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O and [ErY(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O (Gly : glycin)
Liu, BP; Tan, ZC; Lan, XZ; Yu, HG; Zhang, DS; Sun, LX
关键词Heat Capacity Thermal Decomposition Adiabatic Calorimeter Tg Analysis
刊名THERMOCHIMICA ACTA
2003-05-19
DOI10.1016/S0040-6031(02)00570-1
401期:2页:233-238
收录类别SCI
文章类型Article
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]HEAT-CAPACITY ; SMALL SAMPLES
英文摘要Two solid-state coordination compounds of rare earth metals with glycin, [Gd4/3Y2/3(Gly)(6)(H2O)(4)](ClO4)(6)(.)5H(2)O and [ErY(Gly)(6)(H2O)(4)](ClO4)(6)(.)5H(2)O were synthesized. The low-temperature heat capacities of the two coordination compounds, were measured with an adiabatic calorimeter over the temperature range from 78 to 376 K. [Gd4/3Y2/3(Gly)(6)(H2O)(4)](ClO4)(6)(.)5H(2)O melted at 342.90 K, while [ErY(Gly)(6)(H2O)(4)](ClO4)(6)(.)5H(2)O melted at 328.79 K. The molar enthalpy and entropy of fusion for the two coordination compounds were determined to be 18.48 kJ mol(-1) and 53.9 J K-1 mol(-1) for [Gd4/3Y2/3(Gly)(6)(H2O)(4)](ClO4)(6)(.)5H(2)O, 1.82 kJ mol(-1) and 5.5 J K-1 mol(-1) for [ErY(Gly)(6)(H2O)(4)](ClO4)(6)(.)5H(2)O, respectively. Thermal decompositions of the two coordination compounds were studied through the thermogravimetry (TG). Possible mechanisms of the decompositions are discussed. (C) 2002 Elsevier Science B.V. All rights reserved.
语种英语
WOS记录号WOS:000183007300017
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/138399
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
2.Changde Normal Coll, Dept Chem, Changde 415000, Peoples R China
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Liu, BP,Tan, ZC,Lan, XZ,et al. Calorimetric study and thermal analysis of [Gd4/3Y2/3(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O and [ErY(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O (Gly : glycin)[J]. THERMOCHIMICA ACTA,2003,401(2):233-238.
APA Liu, BP,Tan, ZC,Lan, XZ,Yu, HG,Zhang, DS,&Sun, LX.(2003).Calorimetric study and thermal analysis of [Gd4/3Y2/3(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O and [ErY(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O (Gly : glycin).THERMOCHIMICA ACTA,401(2),233-238.
MLA Liu, BP,et al."Calorimetric study and thermal analysis of [Gd4/3Y2/3(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O and [ErY(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O (Gly : glycin)".THERMOCHIMICA ACTA 401.2(2003):233-238.
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