3 ms·

so basically benzene without the hydrogen?

• mirimir 7y ago
  Sort of, but three times as long. Maybe 18 carbons is the minimum (C≡C-C)ₙ, because smaller rings would be too strained. But larger rings would probably be more stable.
• logfromblammo 7y ago
  No. Benzene is an aromatic ring. It has C-C=C sequences that easily flip to C=C-C, making electrons in the ring highly mobile. A C≡C-C sequence does not easily flip to C=C=C, or vice versa. Those electrons are a lot less mobile. Also, alternating single and double bonds leave a bonding site on each carbon for a functional group. Alternating single and triple bonds use up all four (easy) carbon bonds, and you can't cram another bond in there without an insanely powerful acid.