Abstract
Equilibrium constants for the Diels–Alder reaction of 9-chloroanthracene with tetracyanoethylene have been determined in the pressure range 0–970 kg cm–2 in 1,2-dichloroethane at 298 K and the value of the reaction volume (–20.6±1.5 cm3 mol–1) has been compared with the difference in partial molar volume of the dienophile (107.8±0.2), diene (170.7±0.5) and adduct (255.5±1.5 cm3 mol–1).
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