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
文献类型:期刊论文
作者 | Xinmin, W.; Chuansong, Q.; Songsheng, Q.; Zhicheng, T. |
刊名 | journal of thermal analysis and calorimetry
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出版日期 | 2007-11-01 |
卷号 | 90期号:2页码:569-573 |
关键词 | complex 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 |
英文摘要 | rare-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. |
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] | enthalpy |
收录类别 | ISTP ; SCI |
语种 | 英语 |
WOS记录号 | WOS:000251088600040 |
公开日期 | 2015-11-17 |
源URL | [http://159.226.238.44/handle/321008/140653] ![]() |
专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
作者单位 | 1.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 |
推荐引用方式 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. |
入库方式: OAI收割
来源:大连化学物理研究所
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