|
|Section2= |Section7= |Section6= }} Triethylaluminium (TEAL) is an organoaluminium compound. Despite its name, the formula for this compound is Al2(C2H5)6, shortened to Al2Et6 (Et = ethyl). This volatile, colorless liquid is highly pyrophoric, igniting immediately upon exposure to air. It is normally stored in stainless steel containers either as a pure liquid or as a solution in hydrocarbon solvents such as hexane, heptane, or toluene. TEAL is mainly used as a co-catalyst in the industrial production of polyethylene and for the production of medium chain alcohols. == Structure and bonding == The compound is a dimer of triethylaluminium. One pair of ethyl groups bridge the two Al centers, and four are terminal ligands. The two bridging carbon centres are five-coordinate. The bonding is reminiscent of that of diborane, involving 3-centred, 2-electron bonds. As in trimethylaluminium, triethylaluminium is structurally fluctional resulting in rapid interchange of the terminal and bridging ethyl groups. At higher temperatures, the dimer cracks into monomeric AlEt3.〔Gábor Vass, György Tarczay, Gábor Magyarfalvi, András Bödi, and László Szepes “HeI Photoelectron Spectroscopy of Trialkylaluminum and Dialkylaluminum Hydride Compounds and Their Oligomers” Organometallics, 2002, volume 21, pp. 2751–2757. 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「triethylaluminium」の詳細全文を読む スポンサード リンク
|