Monomeric Gallium(III) Compounds Containing Three Different Ligands. Crystal and Molecular Structures of GaMeCl(acac) and GaCl[N(SiMe3)2](acac)

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• 作者：O. T. Beachley ; Jr. ; James R. Gardinier ; Melvyn Rowen Churchill ; David George Churchill ; and Kim M. Keil
• 刊名：Organometallics
• 出版年：2002
• 出版时间：March 4, 2002
• 年：2002
• 卷：21
• 期：5
• 页码：946 - 951
• 全文大小：73K
• 年卷期：v.21,no.5(March 4, 2002)
• ISSN：1520-6041

文摘

Five monomeric gallium(III) compounds, each containing three different ligands, have beenprepared by metathetical and/or ligand redistribution reactions and identified as singlecompounds in benzene solution and in the solid phase, as appropriate. These compoundsinclude GaRCl(acac) (R = Me, Et, Mes (mesityl, C₆H₂Me₃); acac = 2,4-pentanedionato), GaCl[N(SiMe₃)₂](acac), and GaMe[N(SiMe₃)₂](acac). X-ray structural studies of GaMeCl(acac) andGaCl[N(SiMe₃)₂](acac) confirmed the presence of the three different ligands bonded to galliumin these monomeric molecules. The related derivatives GaMeCl(hfac) and GaMesCl(hfac)(hfac = 1,1,1,5,5,5-hexafluoropentanedionato) were also prepared and characterized, but thesecompounds slowly decomposed at room temperature.