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Octaazacubane : ウィキペディア英語版
Octaazacubane

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Octaazacubane is a hypothetical allotrope of nitrogen with formula N8, whose molecules have eight atoms arranged into a cube. (By comparison, nitrogen usually occurs as the diatomic molecule N2.) It can be regarded as a derivative of cubane, where all eight carbon atoms (and their corresponding hydrogen atoms) have been replaced with a nitrogen atom.〔(【引用サイトリンク】 title=Cubane )〕 It is predicted to be a metastable molecule, in which despite the thermodynamic instability caused by bond strain, and the high energy of the N-N single bonds, the molecule remains kinetically stable for reasons of orbital symmetry.
==Explosive and fuel==
Octaazacubane is predicted to have an energy density (assuming decomposition into N2) of 22.9 MJ / kg, which is over 5 times the standard value of TNT. It has therefore been proposed (along with other exotic nitrogen allotropes) as an explosive, and as a component of high performance rocket fuel. Its velocity of detonation is predicted to be 15,000 m/s, much (48.5%) more than ONC, the fastest known nonnuclear explosive.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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