# Does this binary compound of C and N - isoelectronic with carbon suboxide - exist?

I am a mathematician not a chemist, so my questions are naive and rather combinatorial. I am intrigued by the possibility of the following compound:

$$\ce{N- = N+ = C = N+ = N-}$$

which ought to be isoelectronic with carbon suboxide, and thus possibly stable. Does this compound exist, even in interstellar space?

• Now that's an interesting question. After all, diazomethane is a thing. – Ivan Neretin May 6 '18 at 9:42
• There were 0 hits on ChemSpider Structure Search. – Avnish Kabaj May 6 '18 at 9:50
• Looks horrendously unstable – Waylander May 6 '18 at 10:11
• Cyanogen azide, $\ce{(N$\!\equiv\!$C-N=N^+=N^-)}$, is pretty similar but not quite. – Linear Christmas May 6 '18 at 10:57
• @Oscar Lanzi maybe on top of the ear defenders, face shield and arc flash glasses (UV blocking) one should wear the Ned Kelly helmet (Steel bucket with a small eye slot), maybe one should work from behind a sheet of thick steel using a master slave manipulator or maybe choose a different synthetic target to work on. – Nuclear Chemist May 7 '18 at 4:41