nitrile/alumazene), in which the nitriles coordinate to Al. Compounds 3−6 and 7a−c have been structurally characterized. 3 is comprised of four four-membered aluminum amidinate rings. 5 features a core made of three Al2N2 and two AlCN2 four-membered rings fused together. The structures of 4 and 6 consist of a dimer of a six-membered Al2CN3 framework. A high-yield synthesis of 3 from N-(Dipp)benzamidine and AlMe3 has
四元Al-N环[(Dipp)HNAlMe 2 ] 2(2 ; Dipp = 2,6-二异丙基苯基)与芳族腈PhCN,TbpCN(Tbp = 4-
叔丁基苯基),DmpCN(报道了Dmp = 2,6-二甲基苯基),DepCN(DepCN = 2,6-二
乙基苯基)和DippCN。2种发生反应与PHCN,得到1:2插入产品,所述四聚体铝脒基3,而用TbpCN它给出了1:1的插入产品4 - 6。在类似条件下,DmpCN,DepCN和DippCN不经历插入而是形成alumazene(的简单加合物1),图7a - Ç和图8a -c(2:1和1:1腈/铝腈),其中腈与Al配位。化合物3 - 6和图7a - ç已经在结构表征。图3由四个四元a基铝环组成。图5的特征在于由三个Al 2 N 2和两个AlCN 2四元环稠合在一起制成的芯。4和6的结构由六元Al 2 CN 3骨架的二聚体组成。的高收率合成3从ñ -