Dicyanoacetylene
Compounds
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Dicyanoacetylene, also called carbon subnitride or but-2-ynedinitrile, is a compound of carbon and nitrogen with chemical formula C₄N₂. It has a linear molecular structure, N≡C−C≡C−C≡N, with alternating triple and single covalent bonds. Wikipedia
Formula: C4N2
Molar mass: 76.06 g/mol
Melting point: 68.9°F (20.5°C)
Density: 907 kg/m³
Boiling point: 169.7°F (76.5°C)
Related compounds: Carbon suboxide; Cyanogen
Std enthalpy of formation (ΔfH⦵298): +500.4 kJ/mol