Synthesis and luminescence properties of four-armed conjugated structures containing 1,3,4-oxadiazole moietiesElectronic supplementary information (ESI) available: synthesis details. See http://www.rsc.org/suppdata/jm/b3/b302568c/

摘要: New 9,10-bis(phenylethynyl)anthracene cored, four-armed conjugated structures in which the 1,3,4-oxadiazole ring is utilized to link surface alkyl tail groups, were synthesized and luminescence properties of thin films prepared therefrom studied. It was found that compound (ANTH-OXA6t-OC12) with dodecyloxy group a high glass transition temperature (Tg: 211 °C) material exhibits good solubility common organic solvents and, surprisingly, results quality by spin-coating from solutions. In contrast, tert-butyl groups shows poor gives inferior quality. When exposed UV light 335 nm, they emitted mainly strong red (500–750 nm) much weaker emission at 375–450 nm. The (phenylethynyl)anthracene core only emitting chromophore structure, diphenyl oxadiazole moieties are shorter wavelength emitters. an electroluminescence (EL) device having configuration ITO/PEDOT-PSS/ANTH-OXA6t-OC12/Li ∶ Al emits external quantum efficiency 0.02% indicating outer act as electron transporters.