Title: Cubane

CAS Registry Number: 277-10-1

CAS Name: Pentacyclo[4.2.0.02,5.03,8.04,7]octane

Molecular Formula: C8H8

Molecular Weight: 104.15

Percent Composition: C 92.26%, H 7.74%

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

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°.

Melting point: mp 130-131° (sealed capillary)