title: Cooperative dyads for two-photon uncaging.
abstract: A series of dyads that combine a photolabile protecting group (PPG) 4,5-dimethoxy-2-nitrobenzyl and different bis-donor or bis-acceptor dissymmetric chromophores acting as two-photon (2P) absorbers were synthesized. Even for low energy transfer efficiency from the 2PA subunit to the uncaging one, improvement of the 2P uncaging sensitivity in the NIR is achieved as compared to isolated PPG. Moreover enhancement of the 2PA response is achieved by tuning the electronic dissymmetry of the 2PA subunit and the arrangement of the complementary subunits in the dyads.
authors.affiliation: Univ. Bordeaux, Institut des Sciences Moléculaires, CNRS UMR 5255 , 351 Cours de la Libération, F-33450 Talence Cedex, France.
authors.forename: Eduardo José
authors.initials: EJ
authors.lastname: Cueto Díaz
authors.forename: Sébastien
authors.initials: S
authors.lastname: Picard
authors.forename: Vincent
authors.initials: V
authors.lastname: Chevasson
authors.forename: Jonathan
authors.initials: J
authors.lastname: Daniel
authors.forename: Vincent
authors.initials: V
authors.lastname: Hugues
authors.forename: Olivier
authors.initials: O
authors.lastname: Mongin
authors.forename: Emilie
authors.initials: E
authors.lastname: Genin
authors.forename: Mireille
authors.initials: M
authors.lastname: Blanchard-Desce
mesh_terms: D001555:Benzene Derivatives / Q000138:chemical synthesis* / Q000737:chemistry; D004735:Energy Transfer; D005449:Fluorenes / Q000138:chemical synthesis* / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D055668:Photochemical Processes; D017785:Photons
chemical_list: D001555:Benzene Derivatives; D005449:Fluorenes