Heats of combustion of organic compounds of nitrogen. Part 4.—Succinimide, N,N′-bisuccinimide and 2,5,2′,5′-tetramethyl-dipyrryl-(1,1′)

Abstract

Measurements of the heats of combustion at 25°C by conventional bomb calorimetry are reported for crystalline samples of succinimide: ΔH^°_c=–437.28±0.05 kcal/mole, bisuccinimide: ΔH^°_c=–856.13±0.39 kcal/mole, and 2,5,2′,5′-tetramethyl-dipyrrryl-(1,1′): ΔH^°_c=–1706.74±0.20 kcal/mole. The standard heats of formation of these compounds are derived.