128424-36-2Relevant academic research and scientific papers
Synthesis and characterization of a new conjugated polymer containing cyano substituents for light-emitting diodes
Wu, Xia,Liu, Yunqi,Zhu, Daoben
, p. 1327 - 1331 (2001)
A new luminescent conjugated polymer (CN-P3PV) containing cyano groups as electron transporting units was synthesized by a Suzuki coupling reaction. CN-P3PV was characterized by 1H NMR, FT-IR, GPC, DSC, and TGA. The synthesized polymer possessed high thermal stability (Td = 360 °C, Tg= 151 °C), high electron affinity, and good thin-film forming ability. Electrical characterization of a double-layer organic LED based on the structure of ITO/CuPc/CN-P3PV/Ca/Ag showed high electron transporting ability and good electroluminescence performance with the emission of bright orange light.
Enhancing Organic Phosphorescence by Manipulating Heavy-Atom Interaction
Shi, Huifang,An, Zhongfu,Li, Pei-Zhou,Yin, Jun,Xing, Guichuan,He, Tingchao,Chen, Hongzhong,Wang, Jingui,Sun, Handong,Huang, Wei,Zhao, Yanli
, p. 808 - 813 (2016)
Achieving highly efficient phosphorescence in metal-free materials under ambient conditions remains a major challenge in organic optoelectronics. Herein, we report a concise approach to obtaining pure organic phosphorescence with high quantum efficiency of up to 21.9% and millisecond-scale lifetime by manipulating heavy-atom interaction based on a class of dibromobenzene derivatives in the solid state under ambient conditions. By comparing two pairs of the organic compounds designed, the one with two more bromine atoms on the alky terminals (PhBr2C6Br2/PhBr2C8Br2) showed higher luminescence efficiency than the other one (PhBr2C6/PhBr2C8). From the single-crystal analysis, it was proposed that the enhancement of phosphorescence resulted from increased intermolecular heavy-atom interaction in the organic crystals. Furthermore, a temperature sensor was demonstrated by using a model probe of this kind of organic phosphorescent crystals. This work not only provides a concise alternative to enhance phosphorescence in metal-free materials but also extends the scope of pure organic phosphorescent materials with high luminescent efficiency in a single component.
Dyes for sensitized solar cells by using [2.2]paracyclophane as a bridging unit
Huang, Chiung Hui,Chang, Yuan Jay
, p. 4938 - 4942 (2014)
Organic dyes that consist of a [2.2]paracyclophane moiety between a triphenylamine donor group and a cyanoacrylic acid acceptor group have exhibited considerably high values of open-circuit voltage (Voc) in the range of 0.69-0.74 V. In an exper
Catalyst-transfer polycondensation for the synthesis of poly(p-phenylene) with controlled molecular weight and low polydispersity
Miyakoshi, Ryo,Shimono, Kyohei,Yokoyama, Akihiro,Yokozawa, Tsutomu
, p. 16012 - 16013 (2006)
To examine whether catalyst-transfer polycondensation, which affords well-defined polythiophenes, has generality for other conjugated polymers, the synthesis of poly(p-phenylene) (PPP) with various Ni catalysts was investigated. Monomer 1, 1-bromo-4-chlor
Synthesis and characterization of 2,2′-bithiophene end-capped dihexyloxy phenylene pentamer and its application in a solution-processed organic ultraviolet photodetector
Lim, Lih Wei,Teh, Chin Hoong,Daik, Rusli,Sarih, Norazilawati Muhamad,Mat Teridi, Mohd Asri,Muhammad, Fahmi Fariq,Sulaiman, Khaulah
, p. 61848 - 61859 (2016)
In this work a new solution processable small organic material, namely 2,2′-bithiophene end-capped dihexyloxy phenylene pentamer (BHBT2) was synthesized, characterized and applied in the fabrication of an organic ultraviolet photodetector. The
A General and Air-tolerant Strategy to Conjugated Polymers within Seconds under Palladium(I) Dimer Catalysis
Magnin, Guillaume,Clifton, Jamie,Schoenebeck, Franziska
, p. 10179 - 10183 (2019)
While current M0/MII based polymerization strategies largely focus on fine-tuning the catalyst, reagents and conditions for each and every monomer, this report discloses a single method that allows access to a variety of different conjugated polymers within seconds at room temperature. Key to this privileged reactivity is an air- and moisture stable dinuclear PdI catalyst. The method is operationally simple, robust and tolerant to air.
Syntheses and emission properties of novel violet-blue emissive aromatic bis(diazaborole)s
Maruyama, Sumio,Kawanishi, Yuji
, p. 2245 - 2249 (2002)
Violet-blue emission from novel aromatic bis(diazaborole)s, which were synthesized by the reaction of 2,5-bis(hexyloxy)-1,4-phenylenediboronic acid and 1,2-phenylenediamine derivatives or diaminonaphthalene derivatives, is described. White-blue emission front a 4-methoxy-1,2-phenylenediamine-derived molecule was observed in DMF using 340 nm as the excitation wavelength.
Linear and Star-Shaped Extended Di- and Tristyrylbenzenes: Synthesis, Characterization and Optical Response to Acid and Metal Ions
Bunz, Uwe H. F.,Freudenberg, Jan,Kotlear, Eugen A.,Kushida, Soh,Maier, Steffen,Rominger, Frank,Zhang, Hao
supporting information, (2020/06/17)
Two linear 1,4-distyrylbenzenes and five star-shaped 1,3,5-tristyrylbenzene derivatives (L2a and L2b, Y0–Y3 and YNBu) were synthesized and spectroscopically characterized. The photophysical properties, optical response to acid and metal ions were investigated. Upon backbone extension of linear distyrylbenzenes or the introduction of dibutylanilines, the electronic spectra are redshifted. Incorporation of electron-deficient pyridyl units does not significantly affect the optical properties. Variation of the number of pyridine rings and substitution pattern tune the fluorescence response to acids and metal ions. The novel arenes discriminate Al3+, Mn2+, Fe3+, Fe2+, Cd2+, Ag+ and Hg2+.
A study on the synthesis, characterization, structural optimization, and conformational behaviors of bromo-substituted pyromelliticdiimide-based [2+2] macrocycle as structural units of covalently linked molecular tubes
Bandyopadhyay, Arkasish,Halim, Md. Ershad,Hossain, Md. Elius,Shinmyozu, Teruo
, (2020/04/17)
Synthesis and structural, photo physical, and conformational behaviors at variable temperature and structural optimization of the pyromelliticdiimide-based bromo-substituted [2 + 2] macrocycles are described. Cyclization of the diamine (3) with dianhydride (4) in THF, followed by dehydration of the resultant amic acids resulted in the isolation of the bromo-substituted [2 + 2] macrocycle 1 (4.5%). The dynamic temperature-dependent 1H NMR spectra and MO calculations revealed the presence of two possible conformers for the [2 + 2] macrocycle 1. The UV/Vis spectrum of 1 reveals the presence of a weak intramolecular CT interaction of electron-withdrawing pyromelliticdiimide moiety with the electron-donating hexyloxy-substituted xylyl moiety. The cyclic voltammetric measurement shows two two-electron reversible reduction processes.
Stimuli-Responsive Reversible Switching of Intersystem Crossing in Pure Organic Material for Smart Photodynamic Therapy
Hu, Wenbo,He, Tingchao,Zhao, Hui,Tao, Haojie,Chen, Runfeng,Jin, Lu,Li, Junzi,Fan, Quli,Huang, Wei,Baev, Alexander,Prasad, Paras N.
supporting information, p. 11105 - 11111 (2019/07/12)
Photosensitizers (PSs) with stimuli-responsive reversible switching of intersystem crossing (ISC) are highly promising for smart photodynamic therapy (PDT), but achieving this goal remains a tremendous challenge. This study introduces a strategy to obtain
