785051-54-9Relevant articles and documents
Cyclic boron esterification: screening organic room temperature phosphorescent and mechanoluminescent materials
Zhang, Kai,Sun, Qikun,Tang, Liangliang,Wang, Yanhui,Fan, Xiaojing,Liu, Linxi,Xue, Shanfeng,Yang, Wenjun
, p. 8733 - 8737 (2018)
Aryl boronic acids are a broad class of organic intermediates. Here, we show that their cyclic-esterification with appropriate dihydric alcohols is a simple and effective approach for screening organic room-temperature phosphorescent (RTP) and mechanoluminescent (ML) materials. Non RTP and ML active 4-(carbazol-9-yl)phenylboronic acid can be made into long-lived RTP emitters with lifetimes of 264 and 430 ms and a bright ML dye with blue emission by cyclic-esterification with 1,3-propanediol, 2,2-dimethyl-1,3-propanediol, and glycol, respectively. Systematic single crystal analysis and quantum chemical calculations indicate that cyclic borates dominate the molecular packing structures and intermolecular interactions, which is responsible for the different optical properties.
Synthesis and properties of butterfly-shaped naphthalimide-based AIE-active fluorescent dyes
Wang, Haina,Yu, Tianzhi,Zhang, Hui,Zhao, Yuling,Zhou, Meng
, (2022/01/11)
Two novel butterfly-shaped naphthalimide derivatives, 1,3-bis((carbazole-9-yl)-4-benzene-4–1,8-naphthalimide-N-)2,4,6-trimethylbenzene (DNI-Cz) and 1,3-bis((4-triphenylamine)-4–1,8-naphthalimide-N-)2,4,6-trimethylbenzene (DNI-TPA), were designed and synth
Communication of Bichromophore Emission upon Aggregation – Aroyl-S,N-ketene Acetals as Multifunctional Sensor Merocyanines
Biesen, Lukas,May, Lars,Nirmalananthan-Budau, Nithiya,Hoffmann, Katrin,Resch-Genger, Ute,Müller, Thomas J. J.
supporting information, p. 13426 - 13434 (2021/08/06)
Aroyl-S,N-ketene acetal-based bichromophores can be readily synthesized in a consecutive three-component synthesis in good to excellent yields by condensation of aroyl chlorides and an N-(p-bromobenzyl) 2-methyl benzothiazolium salt followed by a Suzuki coupling, yielding a library of 31 bichromophoric fluorophores with substitution pattern-tunable emission properties. Varying both chromophores enables different communication pathways between the chromophores, exploiting aggregation-induced emission (AIE) and energy transfer (ET) properties, and thus, furnishing aggregation-based fluorescence switches. Possible applications range from fluorometric analysis of alcoholic beverages to pH sensors.
ORGANIC ELECTROLUMINESCENCE DEVICE AND ORGANIC COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
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Paragraph 0173-0176, (2021/07/27)
The organic electroluminescent device according to an embodiment 1 is an n-type electrode. The EML includes 2 electrodes and an emitting layer disposed between the (1 and 2) th electrodes, and the EML includes the compound represented by Formula 1, and the EML may exhibit high emission efficiency characteristics and improved lifetime characteristics. Chemical Formula 1. Wherein each substituent in Formula 1 is as defined in the description of the invention.