Hexaborane(12)
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3D model (JSmol)
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CompTox Dashboard (EPA)
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| Properties | |
| B6H12 | |
| Molar mass | 76.96 g·mol−1 |
| Appearance | colorless liquid |
| Melting point | −82.3 °C (−116.1 °F; 190.8 K) |
| Boiling point | 85 °C (185 °F; 358 K) (approx) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Hexaborane(12) is an inorganic compound with the formula B6H12. It is an obscure member of the boranes. It is a colorless liquid that, like some other boron hydride clusters, is readily hydrolyzed and flammable.
The molecular structure conforms to C2 symmetry group. With the formula BnHn+6, it is classified as an arachno-cluster. As such the boron positions match six of the boron positions in the closo-B8H2−
8.
Preparation
[edit | edit source]It is typically prepared by the cluster expansion method from B5H−
8, the conjugate base of pentaborane(9):[2]
- LiB5H8 + 1/2 B2H6 → LiB6H11
- LiB6H11 + HCl → B6H12 + LiCl
