What is the enthalpy of formation of acrylonitrile?

Acrylonitrile is a key industrial compound with numerous uses. Despite its importance, its enthalpy of formation is still contentious. There is a 12 kJ mol-1 range of values reported for the gas phase quantity: 173-185 kJ mol-1. Quantum chemical calculations, using current methodologies and defining reactions, suggest values between 185 and 191 kJ mol-1: the recommended value, an average, is 188 ± 7 kJ mol-1. © 2010 Springer Science+Business Media, LLC.The support of the Spanish Ministerio de Ciencia e Innovación under Project CTQ2007-60895/BQU is gratefully acknowledged