Syntheses and Structures of the Arylaluminum Chalcogenides (ArAlE)<sub>2</sub> (Ar = 2-(NEt<sub>2</sub>CH<sub>2</sub>)-6-MeC<sub>6</sub>H<sub>3</sub>, E = Se; Ar = 2,6-(NEt<sub>2</sub>CH<sub>2</sub>)<sub>2</sub>C<sub>6</sub>H<sub>3</sub>, E = Se, Te)<sup>†</sup>
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Two intramolecular stabilized arylaluminum dihydrides, {2-(NEt2CH2)-6-MeC6H3}AlH2 (1) and {2,6-(NEt2CH2)2C6H3}AlH2 (2), were prepared by reducing the corresponding dichlorides with an excess of LiAlH4 in diethyl ether. Reactions of 1 and 2 with elemental selenium afforded the dimeric arylaluminum selenides [{2-(NEt2CH2)-6-MeC6H3}AlSe]2 (3) and [{2,6-(NEt2CH2)2C6H3}AlSe]2 (4). Reaction of 2 with metallic tellurium gave the dimeric arylaluminum telluride [{2,6-(NEt2CH2)2C6H3}AlTe]2 (5). The possible reaction pathway is discussed, and molecular structures determined by single-crystal X-ray analyses are presented for 3 and 5.
创建时间：
2016-08-17
