报道了具有典型聚集诱导发射(AIE)的巴比妥酸衍生物。它们的发射波长随溶液中水的含量而变化。紫外可见吸收光谱法和理论计算揭示了从供体到受体的分子内电荷转移(ICT)的可能性,并且该机理被证实是分子内运动(RIM)的限制。AIE特性受巴比妥酸上不同取代基的影响。当分子体积增加时,AIE作用降低。采用荧光猝灭机理检测硝基芳族炸药。对于2,4,6-三硝基苯酚(PA),THF / H 2中的一种衍生物5-(4-二苯基氨基苯乙烯)-1,3-二苯基巴比妥酸O混合物(1:9,v / v)显示出放大的荧光猝灭,最大Stern–Volmer猝灭常数为4.1×10 4 M -1。基于5-(4-二苯基氨基苯乙烯)-1,3-二苯基-巴比妥酸的固相纸测试还显示出对蒸气和溶液中的PA均具有优异的敏感性。
Facile fabrication of AIE/AIEE-active fluorescent nanoparticles based on barbituric for cell imaging applications
作者:Kai Li、Yang Zhang、Bing Qiao、Furong Tao、Tianduo Li、Yunqiao Ding、Françisco M. Raymo、Yuezhi Cui
DOI:10.1039/c7ra03956e
日期:——
Compounds 1–4 were synthesized, and the optical properties and mechanisms were investigated. Compound 4 was applied to the cell imaging.
化合物1-4被合成,并研究了其光学性质和机制。化合物4被应用于细胞成像。
Synthesis of tunable, red fluorescent aggregation-enhanced emissive organic fluorophores: stimuli-responsive high contrast off–on fluorescence switching
作者:Palamarneri Sivaraman Hariharan、Parthasarathy Gayathri、Anu Kundu、Subramanian Karthikeyan、Dohyun Moon、Savarimuthu Philip Anthony
DOI:10.1039/c7ce01867c
日期:——
hard crushing and heating. The reversible conversion of the crystalline phase to amorphous phase was responsible for the fluorescence switching of BA and ID. Computational studies have been performed to get an insight into the energy level modulation upon the change of the molecular conformation. Thus, we have presented the facile preparation of strong redfluorescent dyes exhibiting high contrast stimuli-responsive
Synthesis and Optical Chromic Properties of New Barbituric Acid based Dye Molecules Having Push-π-Pull System
作者:Su-Ho Kim、Young-Sung Kim、Do-Hyun Lee、Young-A Son
DOI:10.1080/15421406.2011.599761
日期:2011.11.4
Since the molecular structures based on donor-pi-acceptor dye shows good optical absorption and emission properties by push-pull chromophore system, donor-pi-acceptor dyes have been intensively studied as functional key materials. In this study, the new donor-pi acceptor dyes were designed, synthesized and characterized. The absorption and fluorescence emission spectra of these dyes, being related with chromic color changes, were determined with the several solvents of widely different polarities. The electron energy states of dyes were also characterized by theoretical calculations.
PHOTOELECTRIC CONVERSION DEVICE, PRODUCTION METHOD THEREOF, PHOTOSENSOR, IMAGING DEVICE AND THEIR DRIVE METHODS
申请人:NOMURA Kimiatsu
公开号:US20110063485A1
公开(公告)日:2011-03-17
A photoelectric conversion device comprising a transparent electrically conductive film, a photoelectric conversion film and an electrically conductive film in this order, wherein the photoelectric conversion film comprises a photoelectric conversion layer, and an electron blocking layer, wherein the electron blocking layer contains a compound represented by the specific formula.