首页> 外文期刊>Chemistry: A European journal >Alkylindium Subhalides Derived from the Tetrahedral Indium(I) Cluster Compound [In_4{C(SiMe_3)_3}_4]
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Alkylindium Subhalides Derived from the Tetrahedral Indium(I) Cluster Compound [In_4{C(SiMe_3)_3}_4]

机译:四面体铟(I)簇化合物[In_4 {C(SiMe_3)_3} _4]衍生的烷基亚卤化亚烷基。

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摘要

Partial oxidation of the tetraalkyltetraindium(I) compound [In_4{C(SiMe_3)_3}_4] 1 with halogen donors such as 1,2-dibromoethane and hexachloroethane or with mixtures of bromine and aluminum tribromide afforded novel alkylindium halides in which the indium atoms still possess unusually low oxidation states. Indium-indium single bonds between bivalent indium atoms were found in the compounds In_2X_2R_2 (=C(SiMe_3)_3, X=Cl (2) or Br (4)), which gave dimers in the solid state with all four halogen atoms in a bridging position. The tetrahedral arrangement of four indium atoms in a cluster was retained in the compound In_4Br_2R_4 (3), in which one bromine atom occupied a #mu#_3-bridging position above one triangular face of the In_4 tetrahedron. One edge of that triangle was bridged by the second bromine atom. Mixed-valent indium atoms resulted with an average oxidation state of + 1.5.
机译:四烷基四铟(I)化合物[In_4 {C(SiMe_3)_3} _4] 1用卤素供体(例如1,2-二溴乙烷和六氯乙烷)或与溴和三溴化铝的混合物进行部分氧化,得到新颖的烷基铟卤化物,其中铟原子仍然具有异常低的氧化态。在化合物In_2X_2R_2(= C(SiMe_3)_3,X = Cl(2)或Br(4))中发现了二价铟原子之间的铟-铟单键,这使固态的二聚体与所有四个卤原子成桥接位置。团簇中四个铟原子的四面体排列保留在化合物In_4Br_2R_4(3)中,其中一个溴原子在In_4四面体的一个三角形面上方占据#mu#_3-桥接位置。该三角形的一个边缘被第二个溴原子桥接。混合价铟原子的平均氧化态为+ 1.5。

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