Metal-Mediated Transfer of Electrons between Two Different C−C Single Bonds That Function as Electron-Donor and Electron-Acceptor Units

Concerted cleavage of two C−C single bonds provides the basis for a novel concept for the storage and release of electrons. Electron transfer, mediated by metal ions, occurs between the cyclopropyl ring of a Ni porphyrinogen and the interligand C−C bond of a bis(Ni-salophen) complex (see scheme).