2611. Cubane

Nomenclature

CAS number: 277-10-1
Pentacyclo[4.2.0.02,5.03,8.04,7]octane.
C8H8; mol wt 104.15.
C 92.26%, H 7.74%.

Description and references

Prepn from bromocyclopentadienone dimer: Eaton, Cole, J. Am. Chem. Soc. 86, 3157 (1964). Structure: Fleischer, ibid. 3889.

Chemical structure

Properties

Rhombic crystals from methanol followed by sublimation at just above room temperature and atmospheric pressure, mp 130-131° (sealed capillary). Thermally unstable. Dec at 200°.