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题名: Heat capacities and thermodynamic properties of lanthanum/holmium perchlorate complexes with glycine
作者: Liu, BP;  Tan, ZC;  Yu, HG;  Chen, ZG;  Zun, LX;  Lan, XZ;  Liu, P;  Di, YY
关键词: lanthanum/holmium perchlorate-glycine complex ;  adiabatic calorimetry ;  heat capacity ;  thermogravimetry ;  thermal decomposition
刊名: CHINESE JOURNAL OF CHEMISTRY
发表日期: 2003-04-01
卷: 21, 期:4, 页:396-399
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The heat Capacities Of the two complexes [La-2(Gly)(6)(H2O)(4)](ClO4)(6) and [Ho-2(Gly)(6)(H2O)(4)](ClO4)(6).2H(2)O (Gly=glycine), were measured by adiabatic calorimetry in the temperature row from 78 to 375 K. A solid-solid phase transition was found between 322.87 and 342.29 K for [Ho-2(Gly)(6)(H2O)(4)](ClO4)(6).2H(2)O, and the peak temperature, the enthalpy and the entropy of the transition were obtained to be 330.94 K, 11.65 kJ(.)mol(-1) and 35.20 J (.) K-1 . mol(-1), respectively. No indication of any phase transition or thermal anomaly was observed for [La-2(Gly)(6)(H2O)(4)](ClO4)(6). Thermal stabilities of the two complexes were investigated by thermogravimetry in the temperature range of 40-800degreesC. The possible mechanism for the thermal decompositions were proposed according to the TG and DTG curves.
关键词[WOS]: CALORIMETER ;  ALPHA-AL2O3
语种: 英语
WOS记录号: WOS:000186154800008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138361
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.Chinese Acad Sci, Thermochem Lab, Dalian Inst Chem Phys, Liaoning 110623, Peoples R China
2.Changde Normal Coll, Dept Chem, Changde, Hunan, Peoples R China

Recommended Citation:
Liu, BP,Tan, ZC,Yu, HG,et al. Heat capacities and thermodynamic properties of lanthanum/holmium perchlorate complexes with glycine[J]. CHINESE JOURNAL OF CHEMISTRY,2003,21(4):396-399.
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