156545-07-2Relevant articles and documents
Meso-substituted boron-dipyrromethene compounds: synthesis, tunable solid-state emission, and application in blue-driven LEDs
Liu, Hao,Su, Huan,Chen, Zhiyuan,Zhu, Senqiang,Liu, Rui,Zhu, Hongjun
, p. 1697 - 1705 (2021)
In this work, we depict the synthesis and characterization of a series of meso-substituted boron-dipyrromethene (BODIPY) compounds. Their optical and electrochemical properties were investigated systematically. All these compounds exhibited intense absorption bands in the ultraviolet (UV) and visible regions, which arise from the π–π* transitions based on their BODIPY core segments. By comparing electron-withdrawing substituents and electron-donating substituents, we found that these compounds exhibited some similar photophysical properties but exhibited different fluorescence in the solid state. All compounds were highly emissive in dichloromethane at room temperature (λem = 512–523 nm, ΦPL > 0.9). When these compounds were applied in blue-driven light-emitting diodes (LEDs) as light-emitting materials, the devices showed luminescence efficiency ranging from 1.09 to 34.13 lm/W. Their luminescence and electrochemical properties could be used for understanding the structure–property relationship of BODIPY compounds and developing functional fluorescent materials.
COMPOUND HAVING 2-FLUOROPHENYLOXYMETHANE STRUCTURE
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Paragraph 0094, (2014/09/30)
The present invention relates to a compound having a 2-fluorophenyloxymethane structure and useful for organic electronic materials and medical and agricultural chemicals, particularly materials for liquid crystal display elements. A problem to be solved
LIQUID CRYSTALLINE COMPOUND, LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL DISPLAY ELEMENT
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Page/Page column 43-44, (2009/12/07)
The invention provides a liquid crystal compound which has stability to heat, light and so forth, shows liquid crystal phases in a wide temperature range, and has a small viscosity, an appropriate optical anisotropy, a large dielectric anisotropy, and an