Two-step photoinduced charge separation and unexpectedly fast one-step charge recombination in a linked Donor2-Donor1-Acceptor system van Dijk, S.I.; Wiering, P.G.; van Staveren, R.; van Ramesdonk, H.J.; Brouwer, A.M.; Verhoeven, J.W. Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. Photoinduced sequential two-step electron transfer occurs upon excitation of the 1,3_diphenylpropanedioato boron oxalate electron acceptor in a novel trichromophoric donor*-donor,-acceptor (DI-D,-A) system. The D,-D: -A-state is fluorescent, while the D2+ -D, -A-state is observed by transient absorption. The final giant dipole state, which is formed in x 90% yield, is remarkably short-lived.