title: Synthesis and photophysics of a red-light absorbing supramolecular chromophore system.
abstract: In search of supramolecular antenna systems for light-harvesting applications, we report on a short and effective synthesis of a fused NDI-zinc-salphen-based chromophore (salphen = bis-salicylimide phenylene) and its photophysical properties. A supramolecular recognition motif is embedded into the chromophoric π-system of this compound. The fused π-chromophore behaves as one pigment, absorbs light between 600 and 750 nm and displays a modest Stokes shift. Upon binding pyridines, the compound (DATZnS) does not change its redox potentials, does not undergo any internal excited state quenching and does not appreciably alter its excited state lifetime. These notable properties define DATZnS as an alternative to porphyrin-based components used in supramolecular light-harvesting architectures.
authors: Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands).
authors: Jeroen A
authors: JA
authors: Rombouts
authors: Janneke
authors: J
authors: Ravensbergen
authors: Raoul N
authors: RN
authors: Frese
authors: John T M
authors: JT
authors: Kennis
authors: Andreas W
authors: AW
authors: Ehlers
authors: J Chris
authors: JC
authors: Slootweg
authors: Eelco
authors: E
authors: Ruijter
authors: Koop
authors: K
authors: Lammertsma
authors: Romano V A
authors: RV
authors: Orru
mesh_terms: D004396:Coloring Agents / Q000138:chemical synthesis / Q000737:chemistry*; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D007094:Imides / Q000138:chemical synthesis / Q000737:chemistry*; D008027:Light; D008958:Models, Molecular; D009281:Naphthalenes / Q000138:chemical synthesis / Q000737:chemistry*; D010655:Phenylenediamines / Q000138:chemical synthesis / Q000737:chemistry*; D011166:Porphyrins / Q000737:chemistry; D015032:Zinc / Q000737:chemistry*
chemical_list: D004396:Coloring Agents; D056831:Coordination Complexes; D007094:Imides; D009281:Naphthalenes; D010655:Phenylenediamines; D011166:Porphyrins; C545695:salphen; C542131:naphthalenediimide; D015032:Zinc
keywords: naphthalene diimides; porphyrinoids; supramolecular light harvesting; time-resolved spectroscopy; zinc-salphen complexes