While it is tempOng to describe these as oxidaOve addiOon processes, a detailed analysis of the bonding and charges in the reacOon products, along with intermediates and transiOon states reacOon mechanism, is consistent with charge flow occurring from the Zn-Zn bond to the main group site as the reacOon progresses. Hence, at best the reacOon could be considered redox neutral and in the more extreme as a "reducOve addiOon" of the substrate to metal (or semi-metal) site.