Heat capacity and thermodynamical properties of the crystal of [RE2(Glu)(2)(H2O)(8)](ClO4)(4)center dot H2O (RE = Nd, Eu, Dy)
文献类型：期刊论文
| 作者 | Wu XinMin1; Li Wei1; Tan ZhiCheng2; Qu SongSheng3 |
| 刊名 | science in china series b-chemistry
 |
| 出版日期 | 2009-07-01 |
| 卷号 | 52期号:7页码:862-867 |
| 关键词 | complex of rare earth [RE2(Glu)(2)(H2O)(8)](ClO4)(4)center dot H2O (RE= Nd low-temperature heat capacity standard enthalpy of formation Glu = glutamic acid) Eu Dy |
| 英文摘要 | thermodynamical data of rare earth complexes with amino acid are important for engineering chemistry and fundamental chemistry. however, they have rarely been reported. in this work, a series of crystalline complexes of rare earth perchlorate coordinated with glutamic acid have been synthesized in water medium, and their thermodynamical data, including the heat capacity in low temperature range and the standard enthalpy of formation, were determined. these complexes were identified to be [re2(glu)(2)(h2o)(8)](clo4)(4)center dot h2o (re = nd, eu, dy) by using thermogravimetric analysis (tg), differential thermal analysis (dta), and chemical and elementary analyses. their purity has been determined. no melting points were observed for all the three complexes. the heat capacity of the complexes was measured by an adiabatic calorimeter from 79 to 370 k. abnormal heat capacity values were detected for two of the complexes and the decomposition range of one complex was found. the temperature, enthalpy change and entropy change of the decomposition processes of the three complexes were calculated. the polynomial equations of heat capacity in the experimental temperature range have been obtained by least squares fitting. the standard enthalpy of formation was determined by an isoperibol reaction calorimeter at 298.15 k. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, multidisciplinary |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | rare-earth ; amino-acids ; thermochemistry |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000267396300002 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141557]  |
| 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 Chem Engn, Beijing 102617, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China 3.Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu XinMin,Li Wei,Tan ZhiCheng,et al. Heat capacity and thermodynamical properties of the crystal of [RE2(Glu)(2)(H2O)(8)](ClO4)(4)center dot H2O (RE = Nd, Eu, Dy)[J]. science in china series b-chemistry,2009,52(7):862-867. |
| APA | Wu XinMin,Li Wei,Tan ZhiCheng,&Qu SongSheng.(2009).Heat capacity and thermodynamical properties of the crystal of [RE2(Glu)(2)(H2O)(8)](ClO4)(4)center dot H2O (RE = Nd, Eu, Dy).science in china series b-chemistry,52(7),862-867. |
| MLA | Wu XinMin,et al."Heat capacity and thermodynamical properties of the crystal of [RE2(Glu)(2)(H2O)(8)](ClO4)(4)center dot H2O (RE = Nd, Eu, Dy)".science in china series b-chemistry 52.7(2009):862-867. |
入库方式： OAI收割
来源：大连化学物理研究所
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