Queen Joshua D, Lehmann Annika, Fettinger James C, Tuononen Heikki M, Power Philip P
Department of Chemistry, University of California, Davis, One Shields Avenue, Davis 95616, California, United States.
Department of Chemistry, NanoScience Centre, University of Jyväskylä, P.O. Box 35, Jyväskylä FI-40014, Finland.
J Am Chem Soc. 2020 Dec 9;142(49):20554-20559. doi: 10.1021/jacs.0c10222. Epub 2020 Nov 23.
Reduction of the aluminum iodide AlIAr (; Ar = CH-2,6-(CH-2,4,6-Pr)-3,5-Pr) with 5% w/w Na/NaCl in hexanes gave a dark red solution from which the monomeric alanediyl AlAr () was isolated in ca. 28% yield as yellow-orange crystals. Compounds and were characterized by X-ray crystallography, electronic and NMR spectroscopy, and theoretical calculations. The Al atom in is one-coordinate, and the compound displays two absorptions in its electronic spectrum at 354 and 455 nm. It reacts with H under ambient conditions to give the aluminum hydride {AlH(μ-H)Ar}, probably via a weakly bound dimer of as an intermediate.
在己烷中用5% w/w的Na/NaCl还原碘化铝AlIAr（；Ar = CH-2,6-(CH-2,4,6-Pr)-3,5-Pr）得到深红色溶液，从中以约28%的产率分离出单体丙二烯基AlAr（），为橙黄色晶体。化合物 和 通过X射线晶体学、电子光谱和核磁共振光谱以及理论计算进行了表征。 中的Al原子是单配位的，该化合物在其电子光谱中在354和455 nm处有两个吸收峰。它在环境条件下与H反应生成氢化铝{AlH(μ-H)Ar}，可能是通过 作为中间体的弱结合二聚体。
