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Line 41: '''Heptanitrocubane''' {{IPAc-en\|ˌ\|h\|ɛ\|p\|t\|ə\|ˌ\|n\|aɪ\|t\|r\|oʊ\|ˈ\|k\|j\|uː\|b\|eɪ\|n}} is an experimental [[Explosive\|high explosive]] based on the cubic eight-carbon [[cubane]] molecule and closely related to [[octanitrocubane]]. Seven of the eight [[hydrogen]] atoms at the corners of the cubane molecule are replaced by [[Nitro compound\|nitro]] groups, giving the final molecular formula {{chem2\|C8H(NO2)7}}. As with octanitrocubane, not enough heptanitrocubane has been synthesized to perform detailed tests on its stability and energy. It is hypothesized to have slightly better performance than explosives such as [[HMX]], the current high-energy standard explosive, based on chemical energy analysis. While in theory not as energetic as octanitrocubane's theoretical maximum density, the ~~HNC~~heptanitrocubane that has been synthesized so far is a more effective explosive than any ~~ONC~~octanitrocubane that has been produced, due to more efficient crystal packing and hence higher density.<ref>{{cite journal\|doi=10.1016/j.theochem.2004.05.012\|title=Molecular electrostatic potentials and electron densities in nitrocubanes C8H8−α(NO2)α (α=1–8): Ab initio and density functional study\|year=2004\|last1=Gejji\|first1=Shridhar P\|last2=Patil\|first2=Ujwala N\|last3=Dhumal\|first3=Nilesh R\|journal=Journal of Molecular Structure: THEOCHEM\|volume=681\| issue=1–3 \|pages=117–127}}</ref> Heptanitrocubane was first synthesized by the same team who synthesized octanitrocubane, [[Philip Eaton]] and Mao-Xi Zhang at the [[University of Chicago]], in 1999.<ref>

Heptanitrocubane: Difference between revisions