三乙基铝是一种金属有机化合物,化学式为Al2(C2H5)6。它是挥发性的无色液体,遇空气自燃。它可以纯品保存于不锈钢容器中,或溶于烃类溶剂储存。它是齐格勒-纳塔催化剂的必要组分。[6]
三乙基铝可由铝、氢气和乙烯的化合反应制得:[7]
- 2 Al + 3 H2 + 6 C2H4 → Al2(C2H5)6
铝粉和氯乙烷反应,得到倍半氯化乙基铝,它经金属钠还原后得到三乙基铝:[8]
- 3 Al2Cl3(C2H5)3 + 9 Na → 2 Al2(C2H5)6 + 2 Al + 9 NaCl
此外,三丙基铝和乙烯反应[6]、二乙基汞[6]或三乙基镓[9]在加热下和铝反应,也能制得三乙基铝。
三乙基铝的Al–C键具有极性,接受质子后放出乙烷:[10]
- Al2(C2H5)6 + 6 HX → 2 AlX3 + 6 C2H6
像醇或端基炔烃这样的弱酸也能参与反应,例如它和异丙醇反应,得到二乙基异丙醇铝;[11]和苯乙炔反应,得到二乙基(苯乙炔基)铝。[12]
它和四氯化锡在乙醚中反应,得到三乙基氯化锡。[13]它和氯化锌反应,生成二乙基锌:[7]
- Al2(C2H5)6 + ZnCl2 → Zn(C2H5)2 + 2 (C2H5)2AlCl
Mission Status Center, June 2, 2010, 1905 GMT (页面存档备份,存于互联网档案馆), SpaceflightNow, accessed 2010-06-02, Quotation: "The flanges will link the rocket with ground storage tanks containing liquid oxygen, kerosene fuel, helium, gaserous nitrogen and the first stage ignitor source called triethylaluminum-triethylborane, better known as TEA-TAB."
Pitzer, Kenneth S.; Gutowsky, Herbert S. Electron-deficient molecules. II. Aluminum alkyls. Journal of the American Chemical Society, 1946. 68: 2204-2209. ISSN: 0002-7863. doi:10.1021/ja01215a027
Gallais, Fernand; de Loth, Philippe. Magnetooptical properties of two trialkylaluminums and of their addition compounds with aliphatic ethers. Compt. Rend., 1962. 255. 2755-2756.
无机化学丛书 第二卷 铍 碱土金属 硼 铝 镓分族. 科学出版社. pp 498. 7.3 有机铝化合物
Michael J. Krause, Frank Orlandi, Alfred T. Saurage, Joseph R. Zietz Jr. "Aluminum Compounds, Organic" in Ullmann's Encyclopedia of Industrial Chemistry 2002, Wiley-VCH, Weinheim. DOI: 10.1002/14356007.a01_543
Krause, M. J; Orlandi, F; Saurage, A T.; Zietz, J R, "Organic Aluminum Compounds" Wiley-Science 2002.
Starowieyski, Kazimierz; Kruk, Przemyslaw. Process for preparation of trialkylaluminum compounds from metallic aluminum by transmetalation with trialkylgallium compounds. 2006. PL 192855 B1.
Kunicki, A. R.; Pasynkiewicz, S.; Jankowski, J.; Mank, B. Alkoxyalumoxanes (ROAlO)n - Synthesis and properties. Polish Journal of Chemistry, 2004. 78 (10): 1857-1864. ISSN: 0137-5083.
Kanbur, Uddhav; Ellern, Arkady; Sadow, Aaron D. Alkynylaluminum Synthesis Catalyzed by a Zwitterionic Neodymium(III) Heterobimetallic Compound. Organometallics, 2018. 37 (23): 4409-4414. ISSN: 0276-7333. doi:10.1021/acs.organomet.8b00374
Neumann, Wilhelm P. Organotin compounds. I. New methods of preparation for tin tetraalkyls and alkyltin halides. Justus Liebigs Annalen der Chemie, 1962. 653. 157-163. ISSN: 0075-4617.