五甲基鉭

化合物

五甲基鉭是一種有機鉭化合物英語Organotantalum chemistry,化學式為Ta(CH3)5,它有可能在熔化時爆炸。[4]它可由五氯化鉭二甲基鋅的反應製得。[5]它可以和甲基鋰反應,生成[Ta(CH3)6]或[Ta(CH3)7]2−[6]它和一氧化氮反應,得到二聚體{TaMe3[ON(CH3)NO]2}2[7]

五甲基鉭
系統名
pentamethyl-λ5-tantalane
識別
CAS號 53378-72-6  checkY
PubChem 143042
SMILES
 
  • C[Ta](C)(C)(C)C
性質
化學式 C5H15Ta
摩爾質量 256.12 g·mol−1
外觀 黃色油狀液體,−20 °C時為綠色固體
熔點 0 °C(273 K)[1]
沸點 25 °C以上分解,放出甲烷
溶解性 ether, pentane, 2-methylbutane
熱力學
ΔfHm298K 169.8[2],213 kJ/mol[3]
相關物質
相關化學品 五甲基砷
五甲基銻
五甲基鉍
若非註明,所有數據均出自標準狀態(25 ℃,100 kPa)下。

參考文獻

  1. ^ 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. (原始內容存檔於2016-08-07) (英語). 
  2. ^ 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. 
  3. ^ Pentamethyl tantalum. webbook.nist.gov. [2020-12-09]. (原始內容存檔於2020-12-09) (英語). 
  4. ^ Urben, Peter. Bretherick's Handbook of Reactive Chemical Hazards. Academic Press. 2013: 744. ISBN 9780080523408 (英語). 
  5. ^ 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 (德語). 
  6. ^ 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. 
  7. ^ 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.