What is the difference between a monomode and a multimode system?
In a small monomode system, microwaves are focused through a wave guide on the reaction vessel. You can run one sample at a time, and in general, only small volumes are used. In a multimode system, microwaves are distributed homogeneously throughout the entire cavity by means of a mode stirrer. As a result, you can use a wide variety of reactors or well plates, and can process multiple samples simultaneously or explore larger reaction volumes. Another major advantage of a multimode system is that by using a button or stir bar made of WeflonTM (a carbon-filled polymer), you can even use non-polar (i.e., microwave-transparent) solvents such as 1,4-Dioxane, THF, Toluene, etc.—so you do not have to alter your existing chemistry.
