Synthesis and Structural Characterization of the Novel Compounds from the Reactions of Trimethylaluminum or Trimethylgallium with N,O-Donor Crown Ethers

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• 作者：Qun Zhao ; Hongsui Sun ; Wanzhi Chen ; Chunying Duan ; Yongjiang Liu ; Yi Pan ; and Xiaozeng You
• 刊名：Organometallics
• 出版年：1998
• 出版时间：January 19, 1998
• 年：1998
• 卷：17
• 期：2
• 页码：156 - 160
• 全文大小：96K
• 年卷期：v.17,no.2(January 19, 1998)
• ISSN：1520-6041

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 differentMe_nAl 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.