been prepared and structurally as well as spectroscopically characterised. In the case of the parent neutral homo-disubstituted bisheterocyclomethanes bis-(benzoxazol-2-yl)-methane (abbreviated as (NCOC6H4)2CH2) (1) and bis-(benzothiazol-2-yl)-methane (abbreviated as (NCSC6H4)2CH2) (2), two interesting ligand systems were investigated with respect to their coordination abilities toward group 13 metals
已经制备了一系列含有去质子化的双环杂环
甲烷的第13组配合物,并在结构上和光谱学上进行了表征。在母体中性均二取代双环杂环
甲烷中,双-(
苯并恶唑-2-基)-
甲烷(缩写为(NCOC 6 H 4)2 CH 2)(1)和双-(
苯并噻唑-2-基)-
甲烷(缩写为(
NCSC 6 H 4)2 CH 2)(2),研究了两个有趣的
配体体系对第13组
金属的配位能力。在每种情况下,在使酸性亚甲基桥去质子化时,形成
β-二酮甲酸酯样结构,其中负电荷围绕整个
配体骨架离域。在碳阴离子和酰胺共振结构之间存在介观的稳定作用。将上述
配体用AlMe 3,AlMe 2 Cl和GaMe 3处理,以实现骨架的去质子化和同时的
金属络合。所得的配合物[Me 2 Al (NCOC 6 H 4)2 CH}](3),[Me 2Al (
NCSC 6 H 4)2 CH}](4),[ClMeAl (NCOC 6 H 4)2 CH}](5),[ClMeAl