Boranes plumbyl

The low thermal stability of boron-plumbylated boranes and carboranes limits this route to Pb—boron bonds. Trimethyllead, however, can be inserted into the [C2B4H7] carborane cage in tetrahydrofuran (THE) in 70% yield ... 

Similarly, at low-T the borane anion [BjHg] also yields a plumbyl-bridged cluster, although the product is thermally unstable at RT ... 

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