Low-temperature heat capacity and enthalpy of formation of [Er-2(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O
文献类型：期刊论文
| 作者 | Li, Wei; Wu, Xinmin; Tan, Zhicheng; Qu, Songsheng |
| 刊名 | journal of chemical and engineering data
 |
| 出版日期 | 2007-07-01 |
| 卷号 | 52期号:4页码:1182-1185 |
| 英文摘要 | a crystalline complex of erbium perchlorate coordinated with glycine, [er-2(gly)(6)(h2o)(4)](clo4)(6)center dot 5h(2)o, has been synthesized. no melting point is observed above room temperature. the heat capacity of the complex was measured by adiabatic calorimetry from 79 k to 369 k, and two peaks centered at 233 k and 325 k were found. the first peak centered at 233 k was a phase transformation peak, and the second was decomposition. the temperature, enthalpy change, and entropy change of the phase transformation were 219.47 k, 17.51 kj center dot mol(-1), and 79.77 j center dot k-1 center dot mol(-1), and those of the decomposition process were 312.576 k, 94.86 kj center dot mol(-1), and 303.49 j center dot k-1 center dot mol(-1). the polynomial equations of heat capacity in different temperature ranges, 79.091 k to 217.424 k and 255.606 k to 306.143 k, have been obtained by least-squares fitting. the standard enthalpy of formation was determined to be delta h-f(m)theta ([er-2(gly)(6)(h2o)(4)](clo4)(6)center dot 5h(2)o, s, 298.15 k) = -7911.13 +/- 2.77 kj center dot mol(-1) by isoperibol reaction calorimetry. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, multidisciplinary ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000247966800006 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140419]  |
| 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 | Li, Wei,Wu, Xinmin,Tan, Zhicheng,et al. Low-temperature heat capacity and enthalpy of formation of [Er-2(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O[J]. journal of chemical and engineering data,2007,52(4):1182-1185. |
| APA | Li, Wei,Wu, Xinmin,Tan, Zhicheng,&Qu, Songsheng.(2007).Low-temperature heat capacity and enthalpy of formation of [Er-2(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O.journal of chemical and engineering data,52(4),1182-1185. |
| MLA | Li, Wei,et al."Low-temperature heat capacity and enthalpy of formation of [Er-2(Gly)(6)(H2O)(4)](ClO4)(6)center dot 5H(2)O".journal of chemical and engineering data 52.4(2007):1182-1185. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。