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Low-temperature heat capacity and standard entralpy of formation of neodymium glycine perchlorate complex [Nd-2(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O
Xinmin, W.; Chuansong, Q.; Songsheng, Q.; Zhicheng, T.
KeywordComplex Of Rare Earth Glycine Low-temperature Heat Capacity [Nd-2(Gly)(6)(H2o)(4)](Clo4)(6)Center Dot 5h(2)o Standard Enthalpy Of Formation
Source PublicationJOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
2007-11-01
Volume90Issue:2Pages:569-573
Indexed ByISTP ; SCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Analytical ; Chemistry, Physical
WOS Research AreaChemistry
WOS KeywordENTHALPY
AbstractRare-earth perchlorate complex coordinated with glycine [Nd-2(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O was synthesized and its structure was characterized by using thermogravimetric analysis (TG), differential thermal analysis (DTA), chemical analysis and elementary analysis. Its purity was 99.90%. Heat capacity measurement was carried out with a high-precision fully-automatic adiabatic calorimeter over the temperature range from 78 to 369 K. A solid-solid phase transformation peak was observed at 256.97 K, with the enthalpy and entropy of the phase transformation process are 4.438 kJ mol(-1) and 17.270 J K-1 mol(-1), respectively. There is a big dehydrated peak appears at 330 K, its decomposition temperature, decomposition enthalpy and entropy are 320.606 K, 41.364 kJ mol(-1) and 129.018 J K-1 mol(-1), respectively. The polynomial equations of heat capacity of this compound in different temperature ranges have been fitted. The standard enthalpy of formation was determined to be -8023.002 kJ mol(-1) with isoperibol reaction calorimeter at 298.15 K.
Language英语
WOS IDWOS:000251088600040
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/140653
Collection中国科学院大连化学物理研究所
Affiliation1.Beijing Inst Petrochem Technol, Dept Mat & Chem Engn, Beijing 102617, Peoples R China
2.Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Xinmin, W.,Chuansong, Q.,Songsheng, Q.,et al. Low-temperature heat capacity and standard entralpy of formation of neodymium glycine perchlorate complex [Nd-2(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2007,90(2):569-573.
APA Xinmin, W.,Chuansong, Q.,Songsheng, Q.,&Zhicheng, T..(2007).Low-temperature heat capacity and standard entralpy of formation of neodymium glycine perchlorate complex [Nd-2(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,90(2),569-573.
MLA Xinmin, W.,et al."Low-temperature heat capacity and standard entralpy of formation of neodymium glycine perchlorate complex [Nd-2(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 90.2(2007):569-573.
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