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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Tc(NBCl2Ph)Cl-2(Me2PhP)(3)] and [Tc(NBH3)Cl-2(Me2PhP)(3)] - the first technetium complexes with nitrido bridges between technetium and boron [German
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Tc(NBCl2Ph)Cl-2(Me2PhP)(3)] and [Tc(NBH3)Cl-2(Me2PhP)(3)] - the first technetium complexes with nitrido bridges between technetium and boron [German

机译:Tc(NBCl2Ph)Cl-2(Me2PhP)(3)]和[Tc(NBH3)Cl-2(Me2PhP)(3)]-第一种在tech和硼之间具有亚硝基桥的tech络合物[德国]

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摘要

TcNCl2(Me2PhP)(3)] reacts with BCl2Ph or BH3 THF at low temperatures under formation of complexes containing a nitrido bridge between technetium and boron. The compounds are instable and decompose at room temperature under cleavage of the N-B bonds. The pale-purple [Tc(NBCl2Ph)Cl-2(Me2PhP)(3)] crystallizes in the orthorhombic space group Fdd2. The Tc=N bond is only slightly lengthened by the formation of the N-B bond of 1.564(4) Angstrom. However, a considerable lengthening of the Tc-Cl bond in trans position to the nitrido ligand is observed which can be attributed to an decreasing of the structural trans influence of the nitrido moiety. A similar structural feature can be found in [Tc(NBH3)Cl-2(Me2PhP)(3)] which is the first structurally characterized transition metal complex containing a nitrido bridge to unsubstituted borane. [References: 17
机译:TcNCl2(Me2PhP)(3)]在低温下与BCl2Ph或BH3 THF反应,形成含tech与硼之间的亚硝基桥的配合物。该化合物是不稳定的,并且在室温下由于N-B键的断裂而分解。浅紫色[Tc(NBCl2Ph)Cl-2(Me2PhP)(3)]在正交晶体空间群Fdd2中结晶​​。通过形成1.564(4)埃的N-B键,仅略微延长了Tc = N键。然而,观察到Tc-Cl键在亚硝基配体的反式位置上的相当大的延长,这可归因于氮离子部分的结构反式影响的降低。在[Tc(NBH3)Cl-2(Me2PhP)(3)]中可以找到类似的结构特征,它是第一个在结构上具有特征的过渡金属配合物,其中包含与未取代的硼烷的亚硝基桥。 [参考:17

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