179803-79-3Relevant academic research and scientific papers
Novel methoxy spirobifluorene and alkyl substituted diphenylacene based organic blue light emitting polymers for application in organic electronics
Chalke, Rhushirajeshwari M.,Patil, Vishwanath R.
, p. 355 - 365 (2017)
We report on the synthesis and characterisation of a series of blue light emitting alkoxy substituted poly(spirobifluorenes) based on acene moiety. The obtained polymers had been fully characterised by FTIR, NMR, TGA, GPC techniques. The obtained polymers showed good photoluminescence and electroluminescence properties with blue fluorescence, obtained by supressing the excimer formation as a result of intermolecular interactions. The optical band gaps of all polymers were estimated to be in the range of 2.64–2.71 eV with good fluorescent quantum yield. The introduction of a spiro-structure in polymer backbone leads to its high thermal stability and good solubility in common organic solvents such as CH2Cl2, CH3Cl, toluene, tetrahydrofuran etc.
Synthesis and single aggregate spectroscopy of a novel fluorescent dendrimer with highly efficient energy harvesting
Kobayashi, Minoru,Machida, Shinjiro,Takahashi, Satoshi,Horie, Kazuyuki,Yoshikawa, Hiroyuki,Masuhara, Hiroshi
, p. 394 - 395 (2002)
A novel fluorescent dendrimer with a diphenylanthracene core and pyrenyl groups in the dendrons was synthesized. Fluorescence spectra and its decay curves proved spontaneous energy transfer from the pyrene units to the cote diphenylanthracene, which was ascertained both in solution and for a single particle of the dendrimer aggregate.
Artificial light-harvesting supramolecular polymeric nanoparticles formed by pillar[5]arene-based host-guest interaction
Sun, Cai-Li,Peng, Hui-Qing,Niu, Li-Ya,Chen, Yu-Zhe,Wu, Li-Zhu,Tung, Chen-Ho,Yang, Qing-Zheng
, p. 1117 - 1120 (2018/02/07)
Artificial light-harvesting nanoparticles were prepared from supramolecular polymers comprised of pillar[5]arene with anthracene-derived donors and acceptors through host-guest interactions. The resulting water-dispersible nanoparticles displayed efficient energy transfer and excellent light harvesting ability in part because the steric bulk of pillar[5]arene suppressed the self-quenching of the chromophores.
Polymerizable liquid crystal composition, polarized light-emitting coating material, novel naphtholactam derivative novel coumarin derivative, novel nile red derivative, and novel anthracene derivative
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Page/Page column 148, (2016/11/14)
Provided are a polymerizable liquid crystal composition, a coating material, a medium, and a polarizing device each produced using a polymerizable liquid crystal compound and a colorant and each capable of producing polarized light suitable for polarizing devices, and also a novel naphtholactam derivative, a novel coumarin derivative, a novel Nile Red derivative, and a novel anthracene derivative each suitable for use as the colorant. Specifically provided are a polymerizable liquid crystal composition containing (A) at least one liquid crystal compound having a polymerizable functional group, (B) at least one colorant, and (C) a polymerization initiator, and a novel naphtholactam derivative of formula (IV′), a novel coumarin derivative of formula (VI′), a novel Nile Red derivative of formula (VII′), and a novel anthracene derivative of formula (VIII′) each suitable for use as the colorant (B).
Synthesis and properties of thermotropic liquid-crystalline polyesters containing 9,10-diphenylanthracene moiety in the main chain
Uchimura, Makoto,Ishige, Ryohei,Shigeta, Masayuki,Arakawa, Yuki,Niko, Yosuke,Watanabe, Junji,Konishi, Gen-Ichi
, p. 403 - 414 (2013/02/25)
We synthesized thermotropic liquid-crystalline polyesters in which 9,10-diphenylanthracene moieties are incorporated into the main chain type of polyester forming the chiral smectic C (Sm C*). The polymers were prepared by the isopropyltitanate-catalyzed reaction of biphenyldicarboxylic acid and the corresponding diols, with different ratios of diol of 9,10- diphenylanthracene moiety to the alkane diols (1, 5, and 10 mol %) under nitrogen atmosphere. The polymers exhibited thermotropic liquid crystals despite the presence of a bulky diphenylanthracene moiety in the main chain. The circular dichroism spectra revealed that a Sm C*phase was formed in the polymer with 1 mol % of anthracene moiety, although only an Sm A phase was formed in the other polymers. This is the first example of a Sm C*polyester containing a diphenylanthracene moiety in the main chain. Furthermore, we measured the optical properties of the polymers and found that they exhibited very high fluorescent efficiency. The fluorescence spectra of the thin film differed from that of a CH2Cl2 solution.
9,10-Diarylanthracenes as stable electrochemiluminescent emitters in water
Natarajan, Palani,Schmittel, Michael
, p. 8669 - 8677,9 (2020/09/15)
Two hydrophilic diarylanthracenes, explicitly 9,10-bis(N-methylimidazolium- 3-propoxyphenyl)anthracene (DAA1) and 9,10-bis(N-methylimidazolium-3-propoxy-2, 6-dimethylphenyl)anthracene (DAA2), are synthesized and fully characterized. Both are found to be soluble in aqueous medium and to exhibit optical properties similar to those of the parent 9,10-diphenylanthracene, whose solubility is virtually negligible in water. The detailed analysis of their photochemical stability as well as electrochemical and electrochemiluminescent properties reveals that the sterically highly shielded anthracene DAA2 shows inertness toward reactions with singlet oxygen and OH- ions during photo- and electrochemical initiation and stable ECL emission in aqueous medium.
Synthesis of dihydroxyoligophenylenes containing π-deficient or π-excess hetero-aromatic rings and their solvatochromic behavior
Yamaguchi, Isao,Seo, Kenji,Kawashima, Yukari
experimental part, p. 6725 - 6732 (2010/09/30)
Dihydroxyoligophenylenes (HO-ArPh(m)-OHs) with 9,9-dihexyl-2,7-fluorene (Ar=Flu), 2,5-dioctyloxy-1,4-benzene (Ar=Dob), pyridine (Ar=Py), or thiophene (Ar=Th) rings were synthesized by the Suzuki coupling reaction. Absorption maxima (λmax) of HO-ArPh(m)-OHs shifted progressively toward long wavelengths due to the expansion of the π-conjugation system with an increase in the number of benzene rings. Deprotonation of the OH groups of HO-ArPh(m)-OHs by treatment with NaH caused a bathochromic shift of λmax. The bathochromic shift of the deprotonated species increased with the donor numbers (DNs) of the solvents. The emission peak positions of NaO-ArPh(m)-ONas depended on the DNs of the solvents; therefore, the emission color could be tuned by changing the solvent.
Synthesis and photo physical properties of 9,10-bis(hydroxyphenyl) anthracene derivatives
Zelzer, Mischa,Kappaun, Stefan,Zojer, Egbert,Slugovc, Christian
, p. 453 - 464 (2008/02/02)
Among the most promising fluorescent materials for sensor applications, anthracene and its derivatives have been widely studied. In this contribution, the synthesis and characterization of a series of isomers of bis(hydroxyphenyl)anthracene derivatives ar
Ferrocene derivatives containing anthracene linked by spacers
Wagner, Gabriele,Herrmann, Rudolf,Scherer, Wolfgang
, p. 225 - 233 (2007/10/03)
Several ferrocene derivatives linked by a non-conjugated spacer to a 9,10-diphenylanthracene unit have been prepared, among them an amphiphilic isoquinolinium salt. By X-ray structure analysis of the intermediate 9,10-bis(4-hydroxyphenyl)anthracene, an almost perpendicular arrangement of the phenyl groups with respect to the anthracene was found. The properties of the compounds were studied by NMR and cyclovoltammetry, which suggest that the isoquinolinium salt forms inverse micelles in organic solvents. No indication for intramolecular aggregation of ferrocene and isoquinolinium moieties by folding of the flexible alkyl spacers could be detected. The compound forms a monolayer when spread on water which can be transferred to a quartz surface. Repeated transfer leads to a non-centrosymmetric Z-type array of layers in the Langmuir-Blodgett film.
