The strategy of main-group activation of small molecules has improved rapidly in the past two decades. In 2005, Power et al reported the hydrogenation of Dipp-Ge≡Ge-Dipp under mild condition, forming Dipp-(H)Ge=Ge(H)-Dipp, Dipp-(H)2GeGe(H)2-Dipp and Ge(H)3Dipp. This observation has gained great attention in the field of dihydrogen activation, since H2 activation had long been considered to appear at transition metal centres. In 2007, Frey et al reported a theoretical calculation, indicating that carbene might be used in the activation of dihydrogen. The strong ability of divalent main-group species to spilt bonds is attributed to the existence of contemporary electrophilic empty dorbital and nucleophilic lone pair of electrons. Founded on for these discoveries, the ability of these divalent main-group species to activate small molecules has been widely studied. 2