五甲基钽
化合物
五甲基钽是一种有机钽化合物，化学式为Ta(CH3)5，它有可能在熔化时爆炸。[4]它可由五氯化钽和二甲基锌的反应制得。[5]它可以和甲基锂反应，生成[Ta(CH3)6]−或[Ta(CH3)7]2−。[6]它和一氧化氮反应，得到二聚体{TaMe3[ON(CH3)NO]2}2。[7]
| 五甲基钽 | |
|---|---|
| |
| 系统名 pentamethyl-λ5-tantalane | |
| 识别 | |
| CAS号 | 53378-72-6 
|
| PubChem | 143042 |
| SMILES |
|
| 性质 | |
| 化学式 | C5H15Ta |
| 摩尔质量 | 256.12 g·mol−1 |
| 外观 | 黄色油状液体，−20 °C时为绿色固体 |
| 熔点 | 0 °C（273 K）[1] |
| 沸点 | 25 °C以上分解，放出甲烷 |
| 溶解性 | ether, pentane, 2-methylbutane |
| 热力学 | |
| ΔfHm⦵298K | 169.8[2]，213 kJ/mol[3] |
| 相关物质 | |
| 相关化学品 | 五甲基砷 五甲基锑 五甲基铋 |
| 若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。 | |
参考文献
- ^ Yaws, Carl L. The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals: Physical Properties for More Than 54,000 Organic and Inorganic Chemical Compounds, Coverage for C1 to C100 Organics and Ac to Zr Inorganics. Gulf Professional Publishing. 2015: 87 [2020-12-09]. ISBN 9780128011461. （原始内容存档于2016-08-07） （英语）.
- ^ Adedeji, Festus A.; Connor, Joseph A.; Skinner, Henry A.; Galyer, Lee; Wilkinson, Geoffrey. Heat of formation of pentamethylantalum and hexamethyltungsten. Journal of the Chemical Society, Chemical Communications. 1976, (5): 159. doi:10.1039/C39760000159.
- ^ Pentamethyl tantalum. webbook.nist.gov. [2020-12-09]. （原始内容存档于2020-12-09） （英语）.
- ^ Urben, Peter. Bretherick's Handbook of Reactive Chemical Hazards. Academic Press. 2013: 744. ISBN 9780080523408 （英语）.
- ^ Herrmann, W. A. Synthetic Methods of Organometallic and Inorganic Chemistry, Volume 7, 1997: Volume 7: Transition Metals. Georg Thieme Verlag. 2014: 160–161. ISBN 9783131794710 （德语）.
- ^ Schrock, R. R.; Meakin, P. Pentamethyl complexes of niobium and tantalum. Journal of the American Chemical Society. August 1974, 96 (16): 5288–5290. doi:10.1021/ja00823a064.
- ^ Middleton, A. Robert; Wilkinson, Geoffrey. Interaction of nitric oxide with paramagnetic and diamagnetic alkyls of titanium, zirconium, vanadium, niobium, and tantalum. Journal of the Chemical Society, Dalton Transactions. 1980, (10): 1888. doi:10.1039/DT9800001888.