137436-30-7Relevant academic research and scientific papers
Synthesis and characterization of thiophene and thieno[3,2-b]thiophene containing conjugated polymers
Rustamli, Elvin,Goker, Seza,Tarkuc, Simge,Udum, Yasemin Arslan,Toppare, Levent
, p. G75 - G81 (2015)
Herein, we report the synthesis of two donor-acceptor-donor polymers (P1 and P2) based on thiophene (M1) and thieno [3,2-b]thiophene (M2) as the donor and 2,5-bis(dodecyloxy)benzene as the acceptor unit. The effects of different donor units on the polymer
Carbazole-containing conjugated copolymers as colorimetric/fluorimetric sensor for iodide anion
Vetrichelvan, Muthalagu,Nagarajan, Rajagopal,Valiyaveettil, Suresh
, p. 8303 - 8310 (2006)
A series of conjugated poly(p-phenylene carbazole) copolymers, poly(N-hexyl-3,6-carbazole-alt-2,5-bisdodecyloxyphenylene) [P1], poly(N-ethylhexyl-3,6-carbazole-alt-2,5-bisdodecyloxyphenylene) [P2], and poly(N-dodecyl-3,6-carbazole-alt-2,5-bisdodecyloxyphenylene) [P3] were prepared by using palladium-catalyzed Suzuki coupling reactions. All copolymers were characterized by means of FT-IR, GPC, 1H and 13C NMR, UV-vis, fluorescence spectroscopy, and X-ray powder diffraction patterns. All copolymers were soluble in common organic solvents, exhibited good thermal stability up to 390 °C, and showed UV-vis absorbance and fluorescence maxima around 328 and 394 nm, respectively. The polymers P1-P3 differed in N-alkyl substitution, i.e., n-hexyl (for P1), n-ethylhexyl (for P2), and n-dodecyl (for P3) groups. In addition, a third monomer, 2,5-substituted pyridine for poly(N-ethylhexyl-3,6-carbazole-co-2,5-didodecyloxy phenylene-co-2,5-pyridine) (P4) and dialkylated fluorene for poly(N-ethylhexyl-3,6-carbazole-co-2,5- didodecyloxy phenylene-co-9,9′-dihexylfluorene) (P5) was incorporated into the copolymer P2 to investigate the influence on their optical properties. The UV-vis and fluorescence maxima of P4 and P5 showed significant red shift in λmax by 29 and 19 nm and Δλem of 38 and 21 nm, respectively as compared to the polymers P1-P3. The quantum efficiencies of these polymers (52-78%) were relatively higher and may have good applications in the fabrication of LEDs. The UV-vis and fluorescence spectra of the polymers were significantly affected by the addition of tetrabutylammonium iodide and other metal iodides. A colorless polymer solution turns to deep yellow color on the addition of iodide salts. This change is, however, not observed in the presence of other anions such as fluoride, chloride and bromide salts. Therefore, the polymers P1-P5 may be useful in fabricating selective iodide sensors.
Hierarchical self-assembly of p-terphenyl derivative with dumbbell-like amphiphilic and rod-coil characteristics
Zhou, Qilong,Chen, Ting,Zhang, Jintao,Wan, Lijun,Xie, Ping,Han, Charles C.,Yan, Shouke,Zhang, Rongben
, p. 5522 - 5526 (2008)
As water is gradually added, a p-terphenyl derivative with dumbbell-like amphiphilic and rod-coil characteristics can hierarchically self-assemble to metastable rectangle columns architecting sheets first and then to stable quasi-hexagonal columns architecting rolled sheets, and finally to rod-like nanostructures in MeOH/H2O solution. Interestingly, the formed sheet, rolled sheet, and nanorod possess blue-light emitting property.
Bipyridyl ligand and preparation method thereof, ruthenium supramolecular self-assembly body containing bipyridyl ligand and preparation method and application of ruthenium supramolecular self-assembly
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Paragraph 0030-0036, (2020/08/18)
The invention provides a novel bipyridyl bidentate ligand and a preparation method thereof. The structural formula of the novel bipyridyl bidentate ligand is shown in the specification. The inventionfurther provides a ruthenium supramolecular self-assembly body of the ligand and a preparation method of the ruthenium supramolecular self-assembly body. The preparation method comprises the followingsteps: putting a prepared ruthenium receptor and a bipyridyl ligand into a container, adding a mixed solvent of methanol and dichloromethane in equal proportion, stirring for a period of time at roomtemperature, spin-drying the solution to a certain volume after the reaction is finished, slowly adding diethyl ether, and separating out solid powder, namely the ruthenium supramolecular self-assembly body containing the bipyridyl ligand. The self-assembly body is a novel ruthenium-containing self-assembly compound, and has a good inhibition effect on cancer tumor cell lines A549 and HepG-2.
Eumelanin-inspired core derived from vanillin: A new building block for organic semiconductors
Selvaraju, Subhashini,Sachinthani, K. A. Niradha,Hopson, RaiAnna A.,McFarland, Frederick M.,Guo, Song,Rheingold, Arnold L.,Nelson, Toby L.
supporting information, p. 2957 - 2959 (2015/02/19)
An eumelanin-inspired core derived from the natural product, vanillin (vanilla bean extract) was utilized for the synthesis of eumelanin-inspired small molecules and polymer via Sonogashira cross coupling. The materials demonstrate that the methyl 4,7-dibromo-5,6-dimethoxy-N-methyl-1H-indole-2-carboxylate core can serve as a new building block for organic semiconductors.
Supramolecular ruthenium-alkynyl multicomponent architectures: Engineering, photophysical properties, and responsiveness to nitroaromatics
Gatri, Rafik,Ouerfelli, Ines,Efrit, Mohamed Lofti,Serein-Spirau, Francoise,Lere-Porte, Jean-Pierre,Valvin, Pierre,Roisnel, Thierry,Bivaud, Sebastien,Akdas-Kilig, Huriye,Fillaut, Jean-Luc
supporting information, p. 665 - 676 (2014/03/21)
A series of H-bonded supramolecular architectures were built from monofunctional M-Ci - C-R and bifunctional R-Ci - C-M-Ci - C-R trans-alkynylbis(1,2-bis(diphenylphosphino)ethane)ruthenium(II) complexes and π-conjugated modules containing 2,5-dialkoxy-p-p
Novel self-assembled 2D networks based on zinc metal ion co-ordination: Synthesis and comparative study with 3D networks
Rajwar, Deepa,Liu, Xinfeng,Lim, Zheng Bang,Cho, Sung Ju,Chen, Shi,Thomas, Jens M. H.,Trewin, Abbie,Lam, Yeng Ming,Sum, Tze Chien,Grimsdale, Andrew C.
, p. 17680 - 17693 (2014/05/06)
The synthesis of linear and trigonal terpyridine bearing molecules (tpys) and their self-assembly to form novel extended self-assembled 2D networks of trigonal tpys with linear tpys through zinc metal ion (Zn2+) co-ordination is reported. The r
Chromophore and Polymer Capable of Detecting the Presence of Various Neurotoxins and Method of Use
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Page/Page column 4, (2011/02/25)
Applicants have produced a chromophore and a polymer that are highly sensitive to the presence of various agents, including organophosphates, pesticides, neurotoxins, metal ions, some explosives, and biological toxins. The detection is accomplished by detecting a change in the fluorescence characteristics of the chromophore or polymer when in the presence of the agent to be detected. The chromophore and polymer may be incorporated into sensors of various types, and they are adaptable for potential field use in areas where detection of these types of agents is desired.
New soluble rigid rod copolymers comprising alternating 2-amino-pyrimidine and phenylene repeat units: Syntheses, characterization, optical and electrochemical properties
Mamtimin, Xirali,Matsidik, Rukiya,Nurulla, Ismayil
scheme or table, p. 437 - 446 (2011/02/24)
A new type - π-conjugated copolymers of 2-amino-pyrimidine was prepared between 2-amino-4,6-diiodidepyrimidine and 1,4-dibromo-2,5-dialkoxybenzene by Sonogashira polycondensation. The structures of the copolymers were elucidated by FT-IR, 1H NMR and 13C NMR, fluorescence spectroscopy, gel permeation chromatography, thermal analysis and element analysis. The derived polymers were soluble in common organic solvents and trifloroacetic acid and exhibited good thermal stability. They emitted green light under UV irradiation in solid state and blue or green light in solution phase, respectively. Electrochemical behavior of these new polymers depicted facile p-doping and good electron-transporting properties. These polymers displayed bathochromic shift when protonated with CH3SO3H acid in chloroform solutions or m-cresol solutions and the red-shifted peaks were observed from 490 nm to 652 nm. XRD patterns of copolymers showed that the intensity of peaks was enhanced with increasing alkyloxy chain length.
Synthesis and characterization of soluble conjugated poly(p- phenylenevinylene) derivatives constituted of alternating pyrazole and 1,3,4-oxadiazole moieties
Chang, En-Ming,Huang, Shin-Lin,Lee, Cheng-Tien,Lin, Hui-Chang,Chen, Chun-Yen,Huang, Yu-Ying,Lin, Shao-Kai,Wong, Fung Fuh
scheme or table, p. 1355 - 1362 (2010/04/26)
New soluble poly(p-phenylenevinylene) derivatives with 1,3,4-oxadiazole and pyrazole rings along the main chain were synthesized by Heck coupling. The new conjugated polymers are soluble in common organic solvents as a result of the fully conjugated backb
