Rate Correlation of Photoinduced Electron Transfer to C70

Quenching rate constants (kq) of triplet C70 by electron donors have been measured by laser flash spectroscopy in benzonitrile and in acetonitrile-benzene (1 : 4). A plot of kq values versus free energy change for the electron transfer to 3C70 gives a fairly good correlation with rate constants calculated from the Rehm-Weller equation if corrected the diffusion-controlled rates in solvents used.