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Cage Opening of a Carborane Ligand by Metal Cluster Complexes

机译:金属团簇配合物打开碳硼烷配体的笼子

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The reaction of Os-3(CO)(10)(NCMe)(2) with closo-o-C2B10H10 has yielded two interconvertible isomers Os-3(CO)(9)((3)-4,5,9-C2B10H8)(-H)(2) (1a) and Os-3(CO)(9)((3)-3,4,8-C2B10H8)(-H)(2) (1b) formed by the loss of the two NCMe ligands and one CO ligand from the Os-3 cluster. Two BH bonds of the o-C2B10H10 were activated in its addition to the osmium cluster. A second triosmium cluster was added to the 1a/1b mixture to yield the complex Os-3(CO)(9)(-H)(2)((3)-4,5,9-(3)-7,11,12-C2B10H7)Os-3(CO)(9)(-H)(3) (2) that contains two triosmium triangles attached to the same carborane cage. When heated, 2 was transformed to the complex Os-3(CO)(9)(-H)((3)-3,4,8-(3)-7,11,12-C2B10H8)Os-3(CO)(9)(-H) (3) by a novel opening of the carborane cage with loss of H-2.
机译:Os-3(CO)(10)(NCMe)(2)与closo-o-C2B10H10的反应产生了两个互变异构体Os-3(CO)(9)((3)-4,5,9-C2B10H8 )(-H)(2)(1a)和Os-3(CO)(9)((3)-3,4,8-C2B10H8)(-H)(2)(1b) Os-3簇中的两个NCMe配体和一个CO配体。 o-C2B10H10的两个BH键被添加到cluster簇中。将第二tri簇添加到1a / 1b混合物中以生成复合物Os-3(CO)(9)(-H)(2)((3)-4,5,9-(3)-7,11 ,12-C2B10H7)Os-3(CO)(9)(-H)(3)(2),其中包含连接到同一碳硼烷笼上的两个tri三角形。加热后,2转化为Os-3(CO)(9)(-H)((3)-3,4,8-(3)-7,11,12-C2B10H8)Os-3(CO )(9)(-H)(3)的方法是打开一个新的碳氢烷笼,但损失H-2。

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