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Pentaborane
Pentaborane may refer to: * Pentaborane(9) (B5H9) * Pentaborane(11) (B5H11) {{Short pages monitor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentaborane(9)
Pentaborane(9) is an inorganic compound with the formula . It is one of the most common boron hydride clusters, although it is a highly reactive compound. Because of its high reactivity with oxygen, it was once evaluated as rocket or jet fuel. Like many of the smaller boron hydrides, pentaborane is colourless, diamagnetic, and volatile. It is related to pentaborane(11) (). Structure, synthesis, properties Its structure is that of five atoms of boron arranged in a square pyramid. Each boron has a terminal hydride ligand and four hydrides span the edges of the base of the pyramid. It is classified as a nido cage. It was first prepared by Alfred Stock by pyrolysis of diborane at about 200 °C. An improved synthesis starts from salts of octahydrotriborate (), which is converted to the bromide using HBr. Pyrolysis of this bromide gives pentaborane. : In the U.S., pentaborane was produced on a commercial scale by Callery Chemical Company. Above 150 °C, it decomposes, pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |