Abstract:1+2] cycloaddition between a cyclic (alkyl)-(amino)aluminyl anion (3) and diaryldiazomethane affords an AlN 2 three-membered ring species (4). Compound (4) is thermally unstable and spontaneously releases N 2 gas under the mild reaction condition to generate an ion-separated species 5. An X-ray study shows that the anionic part of 5 bears a considerable short exocyclic AlÀ C bond, and computational studies involving molecular orbital and natural bond orbital analysis indicate the Al=C π bonding character. The … Show more
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