122520-80-3Relevant articles and documents
Styryl-based new organic chromophores bearing free amino and azomethine groups: Synthesis, photophysical, NLO, and thermal properties
?akmaz, Deniz,Barsella, Alberto,Putra, Anka Utama,Sefero?lu, Nurgül,Sefero?lu, Zeynel
, p. 2282 - 2296 (2020)
Herein we report the synthesis and characterization of a new series of styryl-based push-pull dyes containing a free amino group and their Schiff base derivatives. The dyes include the dicyanomethylene group as an acceptor and different para-substituted a
Synthesis and investigation of photophysical, NLO and thermal properties of D-π-A-π-D dyes
?zarslan, Arda,?akmaz, Deniz,Erol, Fatma,?en?z, Hülya,Sefero?lu, Nurgül,Barsella, Alberto,Sefero?lu, Zeynel
, (2021)
A novel coumarin-thiophene based dyes containing azo and dimethine bridges with D-π-A-π-D system were synthesized and investigated their photophysical, nonlinear optical (NLO) and thermal properties. The dyes were characterized by FT-IR, 1H-NMR, 13C-NMR and HRMS. The dyes include dicyanomethylene group as acceptor and different para-substituted alkylamines and carbazole as donor and chlorophenyl as weak acceptor. The photophysical properties of dyes were examined in various solvents with different polarities and they showed absorption in the visible region. The significant bathochromic shifts were observed in the absorption maxima with increasing the electron-donating property of substituents. The second order NLO responses of the compounds are measured by the electric field induced second harmonic (EFISH) generation method and the compounds bearing dialkylamino donor in phenyl moiety were obtained as the larger μβ values 1300 × 10?48 esu, 1850 × 10?48 esu, respectively, than unsubstituted derivative in phenyl ring μβ value 350 × 10?48 esu. The structural and electronic properties of the compounds as well as their NLO properties were studied using DFT calculation. The thermal stabilities obtaining with thermogravimetric analysis (TGA) showed that the dyes have generally a good thermal stability up to 250 °C.
8-Hydroxyquinoline based push-pull azo dye: Novel colorimetric chemosensor for anion detection
Arslan, ?mer,Ayd?ner, Burcu,Yal??n, Ergin,Babür, Banu,Sefero?lu, Nurgül,Sefero?lu, Zeynel
, p. 499 - 509 (2017)
A novel colorimetric chemosensor based on push-pull dye (8HQA) was synthesized and characterized by using IR, 1H/13C NMR and HRMS for the purpose of recognition of anions and cations in DMSO. The absorption maxima of the chemosensor
The novel sensitive and selective chemosensors for determination of multiple analytes
?akmaz, Deniz,?zarslan, Arda,?en?z, Hülya,Ayd?ner, Burcu,Ero?lu, Ahmet Burak,Sefero?lu, Nurgül,Sefero?lu, Zeynel
, (2020)
Novel chemosensors that are azo dyes bearing coumarin with indole and thiophene recognition moieties were synthesized. Sensor properties of the dyes were investigated within multiple basic environments that include various pH ranges, anions, and organic a
Synthesis and investigation of various properties of a novel series of nonlinear optical (NLO) chromophores bearing dicyanovinyl (DCV) moiety
Sefero?lu, Nurgul,Bayrak, Yasmina,Yal??n, Ergin,Sefero?lu, Zeynel
, p. 510 - 519 (2017)
A series of new nonlinear optic (NLO) chromophores containing a dimethine (vinyl) as π-bridge and electron acceptor dicyanomethine and different electron-donating groups and heterocyclic rings were synthesized. The structures of synthesized dyes were characterized by Fourier Transform Infrared (FTIR), proton and carbon nuclear magnetic resonance (1H/13C NMR) and mass spectrometry. Their electronic absorption spectra were evaluated in MeOH, THF and DCM. The absorption maxima exhibited little bathochromic shifts for each dye with the increasing dielectric constants of the solvents. The synthesized dyes can absorb in the range of 354–506 nm. The analysis of the electronic spectra showed that the dyes having electron-donating groups or heterocyclic rings showed significant changes relative to the model dye which has no substituent on the phenyl ring. In addition, the absorption maxima moved to the longest wavelength for dye containing N,N-dibutylamino substituent. Experimental absorption wavelengths for the compounds were found to be in good agreement with those predicted using the Time-Dependent Density Functional Theory (TD-DFT) [B3LYP/6-311 + g(d,p)]. Furthermore, the second order NLO responses of the dyes were calculated using density functional theory (DFT) calculations. The study reveals that the synthesized chromophores have large first hyperpolarizability (β) values, hence they may have potential applications in the development of NLO materials. For determination of the thermal behaviors of the compounds, thermogravimetric analysis (TGA) were done. The result showed that all the chromophores exhibited good thermal stabilities with the decomposition temperatures (Td) greater than 260 °C.
A [5 + 1] annulation strategy for the synthesis of multifunctional biaryls and: P -teraryls from 1,6-Michael acceptor ketene dithioacetals
Althagafi, Ismail,Elagamy, Amr,Kumar, Abhinav,Pratap, Ramendra,Shally,Shaw, Ranjay
, p. 6407 - 6417 (2020/09/07)
A new type of ketene dithioacetal, 2-(3,3-bis-methylsulfanyl-1-arylallylidene)malononitriles containing 1,4 and 1,6-Michael acceptors, were synthesized to study their reactivity for the synthesis of a new molecular entity. We report a [5 + 1] annulation s
AZO DYE, COLORING COMPOSITION, INK FOR INKJET RECORDING, INKJET RECORDING METHOD, INKJET PRINTER CARTRIDGE, AND INKJET RECORDING MATERIAL
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Paragraph 0125; 0126, (2016/12/26)
PROBLEM TO BE SOLVED: To provide: an azo dye and a coloring composition excellent in moisture resistance; an ink for inkjet recording containing the coloring composition; and an inkjet recording method, an inkjet printer cartridge and an inkjet recording material using the ink for inkjet recording. SOLUTION: The dye is represented by the general formula (1) in the figure. (R1b, R1c, R1d and R1e are each independently a hydrogen atom or substituent or may form a ring with coupling between the substituents; Y1 is a nitrogen atom, or a carbon atom provided with a hydrogen atom or substituent; A1 is an aromatic group that may have a substituent, where the aromatic group represented by A1 may have a heteroatom; and Q1 is a divalent linking group.) COPYRIGHT: (C)2015,JPOandINPIT
Syntheses of donor-acceptor-functionalized dihydroazulenes
Broman, Soren Lindbaek,Jevric, Martyn,Bond, Andrew D.,Nielsen, Mogens Brondsted
, p. 41 - 64 (2014/01/17)
The dihydroazulene (DHA)/vinylheptafulvene (VHF) photo/thermoswitch has been of interest for use in molecular electronics and advanced materials. The switching between the two isomers has previously been found to depend strongly on the presence of donor a
NOVEL AZO COMPOUND, AQUEOUS SOLUTION, INK COMPOSITION, INK FOR INKJET RECORDING, INKJET RECORDING METHOD, INK CARTRIDGE FOR INKJET RECORDING AND INKJET RECORDING
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Paragraph 0330; 0331, (2013/06/28)
Provided is an aqueous solution and an ink composition having a favorable color as black ink, providing a colored image or a colored material having excellent fastness by removing a change in image quality of a record by a difference in recording paper, and providing stable ink having a small change in physical properties, particularly, suppressed bronze gloss, even though preservation is performed over a long period of time. In addition, there is provided a method of forming an image, which provides ink for printing or recording, such as inkjet, and prevents a reduction in image quality of the formed image (a method of preventing a reduction in image quality). An aqueous solution including: (a) a preservative, and (b) at least one kind of an azo compound represented by the following Formula (1) or a salt thereof, wherein a content of (b) is 1% by mass to 25% by mass: wherein, in Formula (1), A represents a substituted phenyl group or a substituted or unsubstituted nitrogen-containing 5-membered heterocyclic group, G represents a nitrogen atom or -C(R2)=, R2 represents a hydrogen atom, a sulfo group, a carboxy group, a substituted or unsubstituted carbamoyl group or cyano group, Y2, Y3 and Y4 each independently represents a hydrogen atom or a monovalent substituent, Y2, Y3 and Y4 may be bonded to each other to form a ring, all of Y2, Y3 and Y4 do not represent a hydrogen atom at the same time, and M each independently represents a hydrogen atom or a monovalent countercation.
Solvent-free condensations of ketones with malononitrile catalysed by methanesulfonic acid/morpholine system
Gora,Kozik,Jamrozy,Luczynski,Brzuzan,Wozny
experimental part, p. 863 - 867 (2010/04/23)
The preparation of ylidenemalononitriles via Knoevenagel condensations of ketones with malononitrile under solvent-free conditions is described. Good yields and short reaction time are the features observed with methanesulfonic acid (MSA)/morpholine used as the catalyst. The wide applicability of the protocol is shown by the fact that not only unconjugated, but also aryl-alkyl ketones gave satisfactory yields.
