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Pentaborane(11)
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Pentaborane(11)
Pentaborane(11) is an inorganic compound with the chemical formula B5H11. It is an obscure boron hydride cluster, especially relative to the heavily studied pentaborane(9) (B5H9). With two more hydrogen atoms than nido-pentaborane(9), pentaborane(11) is classified as an arachno- cluster.
Like many boron hydride clusters, pentaborane(11) was originally obtained from the pyrolysis of diborane. A more systematic synthesis entails treatment of [B4H9]− with boron tribromide. The Lewis acid abstracts hydride to give unstable B4H8, the precursor to B5H11:
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Pentaborane(11)
Pentaborane(11) is an inorganic compound with the chemical formula B5H11. It is an obscure boron hydride cluster, especially relative to the heavily studied pentaborane(9) (B5H9). With two more hydrogen atoms than nido-pentaborane(9), pentaborane(11) is classified as an arachno- cluster.
Like many boron hydride clusters, pentaborane(11) was originally obtained from the pyrolysis of diborane. A more systematic synthesis entails treatment of [B4H9]− with boron tribromide. The Lewis acid abstracts hydride to give unstable B4H8, the precursor to B5H11:
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