25121-82-8Relevant academic research and scientific papers
Fluorescent thienothiophene-containing squaraine dyes and threaded supramolecular complexes with tunable wavelengths between 600–800 nm
Liu, Wenqi,McGarraugh, Hannah H.,Smith, Bradley D.
, (2018)
A new family of fluorescent thiophene and thienothiophene-containing squaraine dyes is described with tunable wavelengths that cover the absorption/emission range of 600–800 nm. The deep-red and near-infrared fluorescent compounds were easily prepared by simple synthesis and purification methods. Spectral studies showed that each squaraine was rapidly encapsulated by a tetralactam macrocycle, with nanomolar affinity in water, to produce a threaded supramolecular complex with high chemical stability, increased fluorescence quantum yield, and decreased fluorescence quenching upon dye self-aggregation. Energy transfer within the supramolecular complex permitted multiplex emission. That is, two separate dyes with fluorescence emission bands that match the popular Cy5 and Cy7 channels, could be simultaneously excited with a beam of 375 nm light. A broad range of practical applications is envisioned in healthcare diagnostics, microscopy, molecular imaging, and fluorescence-guided surgery.
Non-halogenated solution-processed ambipolar plastic transistors based on conjugated polymers prepared by asymmetric donor engineering
Song, Inho,Kim, Hyun-Woo,Ahn, Jaeyong,Han, Myeonggeun,Kwon, Soon-Ki,Kim, Yun-Hi,Oh, Joon Hak
, p. 14977 - 14985 (2019)
In addition to attaining strong charge transport capability, field-effect transistors based on conjugated polymer thin films should be processed using non-chlorinated solvents for device fabrication, to avoid adverse impacts on human health and the environment. Although many high-performance diketopyrrolopyrrole (DPP) based conjugated polymers have been studied, few DPP based polymers that can be processed in non-chlorinated solvents have been reported to date. In this work, ambipolar polymeric semiconductors based on a DPP backbone that can be solution-processed using non-chlorinated solvents are reported. The DPP backbone combined with asymmetric conjugated segments results in high solubility and processability in non-chlorinated solvents, such as toluene and o-xylene, without disruption in the conjugation and molecular ordering of the main backbone. The polymer films fabricated with a high-boiling-point additive show ambipolar charge transport characteristics and highly enhanced electrical performance due to greatly enhanced intermolecular interactions and the resulting aggregated nanostructures. The combination of non-chlorinated solution processing with the green additive, along with ambipolar characteristics, enables high-performance environmentally friendly complementary logic circuit integration to be achieved.
2-AMINO-N-(AMINO-OXO-ARYL-LAMBDA6-SULFANYLIDENE)ACETAMIDE COMPOUNDS AND THEIR THERAPEUTIC USE
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Page/Page column 101, (2021/06/26)
The present invention pertains generally to the field of therapeutic compounds. More specifically the present invention pertains to certain 2-amino-N-(amino-oxo-aryl-λ6- sulfanylidene)acetamide compounds (referred to herein as ANASIA compounds) that, inter alia, inhibit (e.g., selectively inhibit) bacterial aminoacyl-tRNA synthetase (aaRS) (e.g., bacterial leucyl-tRNA synthetase, LeuRS). The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit (e.g., selectively inhibit) bacterial aminoacyl-tRNA synthetase; to treat disorders that are ameliorated by the inhibition (e.g., selective inhibition) of bacterial aminoacyl-tRNA synthetase; to treat bacterial infections; etc.
Photoactive Organic/Inorganic Hybrid Materials with Nanosegregated Donor–Acceptor Arrays
Zhu, Xiaolei,Hessin, Cheriehan,Salamé, Aude,Sosa-Vargas, Lydia,Kreher, David,Adachi, Chihaya,Proust, Anna,Mialane, Pierre,Marrot, Jérome,Bouchet, Aude,Sliwa, Michel,Méry, Stéphane,Heinrich, Beno?t,Mathevet, Fabrice,Izzet, Guillaume
supporting information, p. 8419 - 8424 (2021/03/09)
The synthesis of the first mesogenic donor-acceptor polyoxometalate (POM)-based hybrid is herein described. The structural and electronic properties of the hybrid compound were evaluated through combination of small- and wide-angle X-ray scattering, optical microscopy, electrochemistry and photoluminescence. In the solid state, the compound behaves as a birefringent solid, displaying a lamellar organization in which double-layers of POMs and bis(thiophene)thienothiophene organic donors alternate regularly. Noticeably, the sub-unit organizations in the composite are similar to that observed for the individual POM and organic donor precursors. Photophysical studies show that in the hybrid, the fluorescence of the organic donor unit is considerably quenched both in solution and in the solid state, which is attributed to occurrence of intramolecular charge-separated state.
COMPOUND, LIQUID CRYSTAL COMPOSITION AND HIGH-FREQUENCY PHASE SHIFTER
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Paragraph 0165; 0167, (2021/06/21)
PROBLEM TO BE SOLVED: To provide a compound that has large refractive index anisotropy Δn, is high in solubility in a liquid crystal composition, and shows a large dielectric anisotropy in a high frequency region, a liquid crystal composition containing the compound and an element using the liquid crystal composition. SOLUTION: The present invention provides a compound represented by the following general formula (I) and provides a liquid crystal composition containing the compound and an element using the liquid crystal composition. Since the compound of the invention has large refractive index anisotropy Δn, is high in the solubility in the liquid crystal composition, and shows large dielectric anisotropy in a high-frequency region, the compound is useful as a material for elements such as a high-frequency phase shifter, a phased array antenna, an image recognition device, a distance measuring device, a liquid crystal display device, a liquid crystal lens or a birefringence lens for stereo image display or the like. SELECTED DRAWING: None COPYRIGHT: (C)2021,JPOandINPIT
Five-membered heterocyclic organic compound and application thereof
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Paragraph 0034-0038; 0044-0048; 0064-0068, (2020/07/24)
The invention belongs to the technical field of organic photoelectric materials, and particularly relates to a five-membered heterocyclic organic compound and application thereof. The organic compoundprovided by the invention has a five-membered heterocyc
Thieno thiophene fused heterocyclic organic compound and application thereof
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Paragraph 0033-0037; 0046-0050; 0059-0063; 0071-0075; 0084, (2020/07/28)
The invention belongs to the technical field of organic photoelectric materials, and particularly relates to a thieno thiophene fused heterocyclic organic compound and application thereof. The organiccompound provided by the invention has a thieno thiophene fused heterocyclic parent structure, has high bond energy between atoms, has good thermal stability, is beneficial to intermolecular solid accumulation, and can effectively prolong material service life when being used as a luminescent layer material. The compound provided by the invention is a derivative of a large conjugated fused heterocycle, is applied to a light emitting layer, has a proper energy level with adjacent levels, is beneficial to injection of holes and electrons, can effectively reduce turn-on voltage, and can realizegood light emitting efficiency in a device due to a relatively high exciton migration rate. The compound disclosed by the invention has a relatively large conjugate plane, is beneficial to molecular accumulation, shows good thermodynamic stability and shows long service life in a device. The preparation process of the derivative is simple and feasible, raw materials are easy to obtain, and the derivative is suitable for large-scale production.
Pyrimidine heterocyclic compounds, pyrimidine heterocyclic compound salts, and preparation method and application thereof
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Paragraph 0265; 0266; 0267, (2017/07/26)
The invention provides pyrimidine heterocyclic compounds, pyrimidine heterocyclic compound salts, and a preparation method and application thereof. According to the pyrimidine heterocyclic compounds provided by the invention, specific Rq is selected, so that the obtained compounds have favorable drug resistance and long half life when being used as the medicine for treating or preventing HIV. The compounds have the advantages of high activity, low toxicity and high stability.
