Sigma bond activation of the hydrogen molecule by cooperative interaction with a boron cation, a lithium anion, and a beryllium atom
Sharp, Stephanie Baxter
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Sigma bond activation, making a sigma bond more reactive, has been one of tht' most extensively studied areas of chemistry for the past decade. Sigma bonds are the strongest bonds and therefore reactions that involve the breaking of such bonds have large activation energies. Without a doubt, the three most popular sigma bonds are H-H. C-H, and C-C which have been studied extensively in the chemical and physical sciences, and are the driving force behind many industrial processes. Activation of a sigma bond requires a reduction in the energy necessary to break the bond, and historically this has involved an interaction with a transition metal. The selective activation of alkanes has been identified as one of the Holy Grails of current chemical investigation .