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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Reactions of the dielement compounds R2E-ER2 [E = Ga, In; R = CH(SiMe3)(2)] with lithium phenylethynide - Formation of adducts by retention of the E-E bonds [German]
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Reactions of the dielement compounds R2E-ER2 [E = Ga, In; R = CH(SiMe3)(2)] with lithium phenylethynide - Formation of adducts by retention of the E-E bonds [German]

机译:二元化合物R2E-ER2的反应R = CH(SiMe3)(2)]和苯乙炔锂-通过保留E-E键形成加合物[德国]

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摘要

Lithium phenylethynide reacted with the dielement compounds tetrakis[bis(trimethylsilyl)methyl]digallane(4) (2) and diindane(4) (3) as a Lewis-base and gave by the addition of one ethynido ligand to one of the Lewis-acidic central atoms the anionic adducts 4 and 5 with intact Ga-Ga and In-In single bonds. Thus, compounds were formed, in which tricoordinated, coordinatively unsaturated Ga or In atoms are neighbored to tetracoordinated, coordinatively saturated ones. The E-E bonds [255.83 pm in 4 (Ga-Ga) and 285.24 pm in 5 (In-In)] are only slightly lengthened compared to those of the starting compounds 2 and 3. A dynamic behavior with a fast change of the position of the ethynido ligand was observed for both compounds in solution at room temperature. [References: 41]
机译:苯基乙炔锂与路易斯化合物的四[双(三甲基甲硅烷基)甲基] digallane(4)(2)和diindane(4)(3)等二元化合物反应,并通过向路易斯-之一中添加一个乙炔基配体得到带有酸性中心原子的阴离子加合物4和5,具有完整的Ga-Ga和In-In单键。因此,形成了其中三配位,配位不饱和的Ga或In原子与四配位,配位饱和的原子相邻的化合物。 EE键[4(Ga-Ga)中的255.83 pm和5(In-In)中的285.24 pm]与起始化合物2和3相比仅略微延长了。在室温下观察到两种化合物的乙炔基配体。 [参考:41]

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