Stereodifferentiation in the formation and decay of the encounter complex in bimolecular electron transfer with photoactivated acceptors.
Experimental evidence has been obtained for the involvement of encounter complexes between both enantiomers of a pi,pi* triplet excited ketone and a chiral phenol or indole. Determination of the pre-equilibrium constants (K(EC)) and the intrinsic decay rate constants (kd) indicates a significant stereodifferentiation in both steps of the quenching process.
Pérez-Prieto
Julia
J
Departamento de Química Orgánica/ICMOL, Universidad de Valencia, Burjassot, Valencia, Spain. julia.perez@uv.es
Galian
Raquel E
RE
Morant-Miñana
Maria C
MC
Miranda
Miguel A
MA