The synthesis and characterization of mono and dinuclear group 13 complexes derived from a Schiff base
作者:Antonino Aprile、David D. J. Wilson、Anne F. Richards
DOI:10.1039/c2dt30375b
日期:——
The coordination preferences of the tetradentate Schiff base, N,N′-ethylenebis(acetylacetoimine), H2L, with a variety of group 13 precursors, led to the formation of a series of mono and binuclear products. The reaction of H2L with AlMe3 and Me2GaCl afforded the binuclear complexes, [LAl(Me)2}2] 1 and [H2LGaCl(Me)2}2], 3, the latter an adduct of the neutral ligand. Treatment of 1 with iodine generated the cationic Al(III) complex, [LAl(thf)2]I, 2, while the addition of n-BuLi to H2L, followed by reaction with GaCl3 and InCl3 led to an ionic complex [LGaCl}2(μLi)]GaCl4, 4, an In(III) dimer, [LInCl]2, 5 and monomeric [LInCl(thf)], 6. In contrast, the reaction of [InN(SiMe3)2}3] with H2L yielded a homoleptic, air stable, indium complex, [L3In2], 7. All products were definitively characterized by X-ray crystallography and their structures confirmed by pertinent spectroscopic techniques.
四价席夫碱 N,N′-乙烯双(乙酰乙酰亚胺)H2L 与多种 13 族前体的配位反应生成了一系列单核和双核产物。H2L 与 AlMe3 和 Me2GaCl 反应生成了双核配合物 [LAl(Me)2}2] 1 和 [H2LGaCl(Me)2}2],3,后者是中性配体的加合物。用碘处理 1 会生成阳离子 Al(III) 复合物 [LAl(thf)2]I, 2,而向 H2L 中加入 n-BuLi,然后与 GaCl3 和 InCl3 反应会生成离子复合物 [LGaCl}2(μLi)]GaCl4, 4、In(III) 二聚体 [LInCl]2, 5 和单体 [LInCl(thf)], 6。与此相反,[InN(SiMe3)2}3] 与 H2L 反应生成了同色、空气稳定的铟络合物 [L3In2],7。 所有产物都通过 X 射线晶体学进行了明确表征,并通过相关的光谱技术确认了它们的结构。