二镓化五镁：修订间差异
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'''二镓化五镁'''是一种[[金属间化合物]]，化学式为Mg<sub>5</sub>Ga<sub>2</sub>，是镁的镓化物之一。<ref>Predel, Bruno; Huelse, Knut. Thermodynamic properties of solid magnesium-gallium alloys. ''Journal of the Less-Common Metals'', 1979. 63 (2): 159-170.</ref>它可由[[镓]]和[[镁]]在保护气存在下反应制得。<ref>{{cite journal|journal=Journal of Alloys and Compounds|volume=887|language=en|date=2021-12|pages=161317|doi=10.1016/j.jallcom.2021.161317|url=https://linkinghub.elsevier.com/retrieve/pii/S0925838821027262|title=Effects of Ga content on the microstructure and mechanical properties of as-extruded Mg-xGa alloys|accessdate=2023-03-25|author=Donglei He, Yan Li, Yang Zheng, Xiaoxuan Yue, Yan Wu, Xianda Xue, Hongyan Yu, Weirong Li, Yanfang Li}}</ref> |
'''二镓化五镁'''是一种[[金属间化合物]]，化学式为Mg<sub>5</sub>Ga<sub>2</sub>，是镁的镓化物之一。<ref>Predel, Bruno; Huelse, Knut. Thermodynamic properties of solid magnesium-gallium alloys. ''Journal of the Less-Common Metals'', 1979. 63 (2): 159-170.</ref>它可由[[镓]]和[[镁]]在保护气存在下反应制得。<ref>{{cite journal|journal=Journal of Alloys and Compounds|volume=887|language=en|date=2021-12|pages=161317|doi=10.1016/j.jallcom.2021.161317|url=https://linkinghub.elsevier.com/retrieve/pii/S0925838821027262|title=Effects of Ga content on the microstructure and mechanical properties of as-extruded Mg-xGa alloys|accessdate=2023-03-25|author=Donglei He, Yan Li, Yang Zheng, Xiaoxuan Yue, Yan Wu, Xianda Xue, Hongyan Yu, Weirong Li, Yanfang Li|archive-date=2022-12-09|archive-url=https://web.archive.org/web/20221209090256/https://linkinghub.elsevier.com/retrieve/pii/S0925838821027262|dead-url=no}}</ref> |
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它是一些化合物的[[晶体结构]]原型，属于Mg<sub>5</sub>Ga<sub>2</sub>结构的化合物有Tl<sub>2</sub>Mg<sub>5</sub>、Mn<sub>2</sub>Ge<sub>5</sub>、Cu<sub>5</sub>As<sub>2</sub>等。<ref>{{cite web|url=https://www.aflowlib.org/prototype-encyclopedia/A2B5_oI28_72_j_bfj.html|title=Ga<sub>2</sub>Mg<sub>5</sub> (''D''8<sub>g</sub>) Structure|publisher=Encyclopedia of Crystallographic Prototypes|accessdate=2023-03-25}}</ref>Na<sub>2</sub>Mg<sub>3</sub>Sn<sub>2</sub>和Na<sub>2</sub>Mg<sub>3</sub>Pb<sub>2</sub>属于Mg<sub>5</sub>Ga<sub>2</sub>修改结构。<ref>{{cite journal|journal=Japanese Journal of Applied Physics|volume=54|issue=7S2|issn=0021-4922|date=2015-07-01|pages=07JC04|doi=10.7567/JJAP.54.07JC04|url=https://iopscience.iop.org/article/10.7567/JJAP.54.07JC04|title=Synthesis of Na 2 Mg 3 X 2 ( X = Sn, Pb) and Na 4 Mg 4 Sn 3 and their crystal structures and thermoelectric properties|accessdate=2023-03-25|author=Takahiro Yamada, Ryo Ishiyama, Hisanori Yamane}}</ref> |
它是一些化合物的[[晶体结构]]原型，属于Mg<sub>5</sub>Ga<sub>2</sub>结构的化合物有Tl<sub>2</sub>Mg<sub>5</sub>、Mn<sub>2</sub>Ge<sub>5</sub>、Cu<sub>5</sub>As<sub>2</sub>等。<ref>{{cite web|url=https://www.aflowlib.org/prototype-encyclopedia/A2B5_oI28_72_j_bfj.html|title=Ga<sub>2</sub>Mg<sub>5</sub> (''D''8<sub>g</sub>) Structure|publisher=Encyclopedia of Crystallographic Prototypes|accessdate=2023-03-25|archive-date=2023-03-25|archive-url=https://web.archive.org/web/20230325050927/https://www.aflowlib.org/prototype-encyclopedia/A2B5_oI28_72_j_bfj.html|dead-url=no}}</ref>Na<sub>2</sub>Mg<sub>3</sub>Sn<sub>2</sub>和Na<sub>2</sub>Mg<sub>3</sub>Pb<sub>2</sub>属于Mg<sub>5</sub>Ga<sub>2</sub>修改结构。<ref>{{cite journal|journal=Japanese Journal of Applied Physics|volume=54|issue=7S2|issn=0021-4922|date=2015-07-01|pages=07JC04|doi=10.7567/JJAP.54.07JC04|url=https://iopscience.iop.org/article/10.7567/JJAP.54.07JC04|title=Synthesis of Na 2 Mg 3 X 2 ( X = Sn, Pb) and Na 4 Mg 4 Sn 3 and their crystal structures and thermoelectric properties|accessdate=2023-03-25|author=Takahiro Yamada, Ryo Ishiyama, Hisanori Yamane}}</ref> |
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==参考文献== |
==参考文献== |
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2023年6月25日 (日) 07:43的最新版本
| 二镓化五镁 | |
|---|---|
| 别名 | Mg5Ga2 Ga2Mg5 |
| 识别 | |
| CAS号 | 12064-14-1 
|
| 性质 | |
| 化学式 | Mg5Ga2 |
| 摩尔质量 | 260.97 g/mol g·mol⁻¹ |
| 密度 | 3.08 g/cm3 |
| 熔点 | 456 °C（729 K） |
| 结构 | |
| 晶体结构 | Orthorhombic |
| 空间群 | Ibam |
| 晶格常数 | a = 13.71 Å, b = 7.02 Å, c = 6.02 Å |
| 热力学 | |
| ΔfHm⦵298K | -206.5 kJ/mol (calculated) |
| 若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。 | |
二镓化五镁是一种金属间化合物，化学式为Mg5Ga2，是镁的镓化物之一。[1]它可由镓和镁在保护气存在下反应制得。[2]
它是一些化合物的晶体结构原型，属于Mg5Ga2结构的化合物有Tl2Mg5、Mn2Ge5、Cu5As2等。[3]Na2Mg3Sn2和Na2Mg3Pb2属于Mg5Ga2修改结构。[4]
参考文献
[编辑]- ^ Predel, Bruno; Huelse, Knut. Thermodynamic properties of solid magnesium-gallium alloys. Journal of the Less-Common Metals, 1979. 63 (2): 159-170.
- ^ Donglei He, Yan Li, Yang Zheng, Xiaoxuan Yue, Yan Wu, Xianda Xue, Hongyan Yu, Weirong Li, Yanfang Li. Effects of Ga content on the microstructure and mechanical properties of as-extruded Mg-xGa alloys. Journal of Alloys and Compounds. 2021-12, 887: 161317 [2023-03-25]. doi:10.1016/j.jallcom.2021.161317. （原始内容存档于2022-12-09） （英语）.
- ^ Ga2Mg5 (D8g) Structure. Encyclopedia of Crystallographic Prototypes. [2023-03-25]. （原始内容存档于2023-03-25）.
- ^ Takahiro Yamada, Ryo Ishiyama, Hisanori Yamane. Synthesis of Na 2 Mg 3 X 2 ( X = Sn, Pb) and Na 4 Mg 4 Sn 3 and their crystal structures and thermoelectric properties. Japanese Journal of Applied Physics. 2015-07-01, 54 (7S2): 07JC04 [2023-03-25]. ISSN 0021-4922. doi:10.7567/JJAP.54.07JC04.