Electron-transfer rates involving the C~(sep)~+*~+(sep= 1, 3, 6, 8, 10, 13, 16, 19- octaazabicyclo [6.6. 6] eicosane) and C~(en)~~+,~+ couples have been examined for any differences in contributions of Franck-Condon and electronic terms to the rate constants. Rate constants for cross-reaction oxidations of Co (sep)*+ follow the classically predicted dependence of the Franck-Condon factor on AGab0. Far-infrared and Raman vibrational ...