title: Fluorescence photoswitching of a diarylethene-perylenebisimide dyad based on intramolecular electron transfer.
abstract: A fluorescent photochromic molecule, which is composed of a photochromic diarylethene (DE) and a fluorescent perylenebisimide (PBI), was synthesized and its fluorescence photoswitching was studied. The fluorescence quantum yield of the open-ring isomer is constant irrespective of solvent polarity, while that of the closed-ring isomer decreases with an increase in the dielectric constant of solvents. Femtosecond time-resolved transient and fluorescence lifetime measurements revealed that the fluorescence quenching of the closed-ring isomer is attributed to the intramolecular electron transfer from the PBI chromophore to the DE unit.
authors.affiliation: Research Institute for Electronic Science, Hokkaido University, N20, W10, Kita-ku, Sapporo 001-0020, Japan. tuyoshi@es.hokudai.ac.jp
authors.forename: Tuyoshi
authors.initials: T
authors.lastname: Fukaminato
authors.forename: Masaaki
authors.initials: M
authors.lastname: Tanaka
authors.forename: Takao
authors.initials: T
authors.lastname: Doi
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Tamaoki
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Katayama
authors.forename: Arabinda
authors.initials: A
authors.lastname: Mallick
authors.forename: Yukihide
authors.initials: Y
authors.lastname: Ishibashi
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Miyasaka
authors.forename: Masahiro
authors.initials: M
authors.lastname: Irie
mesh_terms: D003499:Cyclic S-Oxides / Q000138:chemical synthesis / Q000737:chemistry*; D004579:Electron Transport; D005456:Fluorescent Dyes / Q000737:chemistry*; D007094:Imides / Q000138:chemical synthesis / Q000737:chemistry*; D007536:Isomerism; D010569:Perylene / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D013876:Thiophenes / Q000138:chemical synthesis / Q000737:chemistry*; D013997:Time Factors
chemical_list: D003499:Cyclic S-Oxides; D005456:Fluorescent Dyes; D007094:Imides; D013876:Thiophenes; C510697:perylene bisimide; D010569:Perylene