User:Graeme Bartlett/pentatetraenedithone

Pentatetraenedithone is a heterocumulene compound of carbon, and sulfur with formula C5S2. It contains a chain of five carbon atoms capped by sulfur at each end (S=C=C=C=C=C=S). Pentatetraenedithone can be isolated in solution, or in matrix isolation. It is subject to polymerization.

Formation
On photolysis or heat treatment of benzotris(thiadiazole), pentatetraenedithone, dinitrogen (N≡N) and carbon monosulfide (C=S) can be formed.