Theoretical Possibility of a N-methyl Polymer Structure

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The discussion explores the theoretical possibility of a polymer structure involving nitrogen, noting that while it doesn't violate bonding rules, the C-C bond strength exceeds that of the N-N bond, suggesting fragility. The strong triple bond in elemental nitrogen complicates the stability of such polymers, with hexagonal nitrogen being potentially explosive and difficult to synthesize. Research indicates that nitrogen-rich compounds, like azidoazide and tetraazidoammonium azide, are considered more viable but still face significant challenges. Additionally, fluorescent nanodots of carbon nitride can be derived from citrazinic acid, hinting at alternative nitrogen structures. Overall, while intriguing, the synthesis of stable nitrogen polymers remains largely theoretical and fraught with practical difficulties.
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Out of sheer curiosity, would a polymer of the following structure be theoretically possible?

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Imagine that the "N-methyl" groups are just the bounds of what is shown, and not actual carbon-containing substituents...

It doesn't seem to break any elementary bonding rules. However, the C-C bond is over twice as strong as the N-N bond, so in practical terms, it would be relatively fragile.
 
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There’s been a decent amount of theoretical work done on what allotropes of nitrogen are possible. You can get a rough estimate for the formation energy of hexagonal nitrogen relative to N2 by comparing binding energies. It comes out to somewhere around 250 kJ/mol. This quantifies a well-known phenomenon in highly nitrogenous compounds: even if hexagonal nitrogen were able to exist, it would be—at the very least—an extremely powerful explosive.

The research groups that study nitrogen-rich compounds generally consider other nitrogen allotropes as more realistic synthetic targets (but still likely impossible, and also extremely explosive). Some of these targets include azidoazide: N6 or (N3)2, a pseudohalogen analogous to cyanogen; and tetraazidoammonium azide: N16 or (N3)4N+N3-.
 
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I don't have the reference to hand, but I read recently that you can create fluorescent nanodots of carbon nitride derived from pyrolysis of citrazinic acid. Nominally, that would be hexagonal rings of alternating carbon and nitrogen atoms.

If I had to try this, I would be looking at conditions under which diazine could be polymerised or, if not possible, an unsaturated amine
 
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