title: Singlet-energy transfer in quadruple hydrogen-bonded oligo(p-phenylenevinylene)perylene-diimide dyads.
abstract: The photophysical properties of a supramolecular donor-acceptor dyad consisting of an oligo(p-phenylenevinylene) unit and a perylene-diimide unit are described. The dyad is created by functionalising the two chromophores with quadruple hydrogen bonding 2-ureido-4[1H]-pyrimidinone units, which provide a high association constant (K approximately 10(8) M-1 in toluene). This feature enabled us to study the time-resolved photoinduced singlet-energy transfer reaction between the two chromophores in dilute solution with transient pump-probe spectroscopy. This energy transfer occurs with a time constant of 5.1 ps.
authors.affiliation: Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
authors.forename: Edda E
authors.initials: EE
authors.lastname: Neuteboom
authors.forename: Edwin H
authors.initials: EH
authors.lastname: Beckers
authors.forename: Stefan C
authors.initials: SC
authors.lastname: Meskers
authors.forename: E W
authors.initials: EW
authors.lastname: Meijer
authors.forename: René A
authors.initials: RA
authors.lastname: Janssen