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I took a look into some tetrahedrane ($\ce{C4H4}$) analogs, platonic hydrocarbon, basically very strained tetrahedral geometry at every carbon. I was wondering what will be the predicted delta H of formation for the tetra nitro analog tetranitrotetrahedrane? What will be the predicted detonation velocity too? Could there be modified analogs that are even more energetic?

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    $\begingroup$ Have you heard of hydrazine? It's the most relaxed compound with a $\ce{N-N}$ bond. Even for that, Wikipedia says: Hydrazine is highly toxic and dangerously unstable unless handled in solution. Considering that fact, $\ce{N-N}$ bond is too weak to form tetrahedrane molecules. $\endgroup$
    – Pritt says Reinstate Monica
    Commented Jul 2, 2017 at 9:56
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    $\begingroup$ If you are still interested, here is that article about cubane: pubs.acs.org/doi/abs/10.1021/jp511756v. And the article about nitrocubanes: onlinelibrary.wiley.com/doi/10.1002/… $\endgroup$
    – Tyberius ♦
    Commented Nov 28, 2017 at 19:00
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    $\begingroup$ @pritt I know it's old comment, but OP's talking about tetranitro, not tetraaza compound. Tetrahedral N4 is crazy, but tetranitro... might be possible (and very powerful). $\endgroup$
    – Mithoron
    Commented Dec 25, 2023 at 21:42
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    $\begingroup$ Highly nitrated cage compounds are a subject of some research interest (at least for chemists who think the five fingers is a surplus) as Derek Lowe illustrates in his Things i Won't Work With column. Octanitrocubane is known. $\endgroup$
    – matt_black
    Commented Dec 28, 2023 at 13:34

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