Solvent friction effect on intramolecular electron transfer.
U-shaped donor-bridge-acceptor molecules with different electronic couplings have been investigated as a function of temperature in solvents with slow polarization relaxation, in particular, N-methylacetamide (NMA) and N-methylpropionamide (NMP). At high temperature, the electron-transfer rate is well described by a nonadiabatic model; however, the rate at low temperature is controlled by the solvent friction. The change of the electron-transfer mechanism is discussed and compared with theoretical models.
Liu
Min
M
Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, USA.
Ito
Naoki
N
Maroncelli
Mark
M
Waldeck
David H
DH
Oliver
Anna M
AM
Paddon-Row
Michael N
MN