文摘
The reactions of two N/O mixed-donor crown ethers,1,12,15-triaza-3,4:9,10-dibenzo-5,8-dioxacycloheptadecane (OenNdienH4) and1,12-diaza-3,4:9,10-dibenzo-5,8-dioxacyclopentadecane (OenNtnH4) with MMe3 (M = Al, Ga) arereported. OenNdienH4 reacted with 3equiv of AlMe3 to form(AlMe)(AlMe2)(OenNdienH4)(AlMe3)(1) which contains three differentMenAl groups: AlMe, AlMe2,AlMe3. OenNtnH4 reacted with 2 equiv ofAlMe3 to afford(AlMe2)(OenNtnH4)(AlMe3)(2) containing two chemically inequivalent aluminumcenters.However, the reaction of OenNdienH4 withGaMe3 in 1:3 ratio resulted in(OenNdienH4)2(GaMe2OH)4 (3). The(Me2GaOH)4 component contains aneight-membered Ga-O ring linkedvia four hydrogen bonds to two molecules ofOenNdienH4 which interacts from opposite sidesof the Ga4O4 ring. The reaction ofOenNtnH4 with GaMe3 in 1:2 ratioproduced(OenNtnH4)(GaMe2OH)3(4), a one-dimensional hydrogen bonded system whichincorporatesone OenNtnH4 ligand and one nonplanar six-membered ringwith alternating Ga and Oatoms (GaMe2OH)3.