Compound 7

(2-(6,6,6,6,6-Pentafluoro-6λ⁸-hexa-1,3,5-triyn-1-yl)-3a,4,5,7a-tetrahydro-1H-1,4,5-(epimethanetriyl)indene-1,3,8-triyl)tris(trimethylsilane)

From: A Diels–Alder super diene breaking benzene into C₂H₂ and C₄H₄ units