Comparison Of Shaking Versus Baking: Further Understanding The Energetics Of A Mechanochemical Reaction

Abstract

Using a mechanically driven Diels-Alder reaction we were able to characterize the chemical energetics of a SPEX 8000M mixer/mill. Our results demonstrate that the conditions produced by this type of mill are similar to those produced when performing the same reaction at 90 °C in solution. Discrete element models and in situ temperature logging were used to analyse the energetics of this system. These models indicate that the yields obtained using a SPEX 8000M mill are best correlated to the velocity of the media and number of non-zero force collisions. © 2014 The Royal Society of Chemistry