title: Luminescent boron-contained ladder-type pi-conjugated compounds.
abstract: Four diboron-contained ladder-type pi-conjugated compounds 1-4 were designed and synthesized. Their thermal, photophysical, electrochemical properties, as well as density functional theory calculations, were fully investigated. The single crystals of compounds 1 and 3 were grown, and their crystal structures were determined by X-ray diffraction analysis. Both compounds have a ladder-type pi-conjugated framework. Compounds 1 and 2 possess high thermal stabilities, moderate solid-state fluorescence quantum yields, as well as stable redox properties, indicating that they are possible candidates for emitters and charge-transporting materials in electroluminescent (EL) devices. The double-layer device with the configuration of [ITO/NPB (40 nm)/1 or 2 (70 nm)/LiF (0.5 nm)/Al (200 nm)] exhibited good EL performance with the maximum brightness exceeding 8000 cd/m(2).
authors: State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China.
authors: Zuolun
authors: Z
authors: Zhang
authors: Hai
authors: H
authors: Bi
authors: Yu
authors: Y
authors: Zhang
authors: Dandan
authors: D
authors: Yao
authors: Hongze
authors: H
authors: Gao
authors: Yan
authors: Y
authors: Fan
authors: Hongyu
authors: H
authors: Zhang
authors: Yue
authors: Y
authors: Wang
authors: Yanping
authors: Y
authors: Wang
authors: Zhenyu
authors: Z
authors: Chen
authors: Dongge
authors: D
authors: Ma