Category: 18512-55-5

Jin, Guangri published the artcileSynthesis, self-assembly and spectroscopic analysis of 9,10-bis((4-(2-(2-(2-methoxyethoxy)ethoxy)ethoxy)phenyl)ethynyl)anthracene, Formula: C18H10, the publication is Yingyong Huaxue (2015), 32(2), 177-182, database is CAplus.

Compound I [R = O(CH₂CH₂O)₃OMe] was synthesized by Sonogashira coupling. Its structure was characterized by ¹H NMR and MALDI-TOF mass spectroscopy. The self-assembling behavior of compound I [R = O(CH₂CH₂O)₃OMe] was investigated by means of differential scanning calorimetry (DSC), thermal polarized optical microscopy (POM), and small-angle X-ray scattering (SAXS) at the bulk state. Compound I [R = O(CH₂CH₂O)₃OMe] self-assembled into smectic A phase (SmA) in the solid state. Spectroscopic anal. suggested that compound 1 inherited the characteristic of high fluorescence quantum yield (Φ_f) of disubstituted anthracenes. The title compound I [R = O(CH₂CH₂O)₃OMe] is a kind of photoluminescence materials with good performance.

Yingyong Huaxue published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C18H10, Formula: C18H10.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Liu, Yang published the artcileSynthesis and self-assembly of triblock oligomers containing anthracene unit, SDS of cas: 18512-55-5, the publication is Gaodeng Xuexiao Huaxue Xuebao (2014), 35(5), 989-994, database is CAplus.

Rod-coil mols., consisting of a flexible and a rigid block, have a strong tendency to self-organize into a various supramol. nanostructures in the bulk state. Two coil-rod-coil triblock cruciform compds incorporating anthracene unit were synthesized through Sonogashira coupling reaction. Mol. structures of these compounds were characterized by ¹H NMR and MALDI-TOF mass spectroscopy. The self-assembling behaviors of these mols. were investigated by means of differential scanning calorimetry (DSC), thermal polarized optical microscopy (POM), small-angle and wide-angle X-ray scattering (SAXS and WAXS) at the bulk state. In liquid crystalline mesophase, the compounds connecting with tetra(ethylene oxide) as flexible chains self-assembles into oblique columnar phase and nematic phase, while the compound containing alkyl flexible chain self-assembles into lamellar structure (L) in the solid state, and has not shown liquid crystalline phase.

Gaodeng Xuexiao Huaxue Xuebao published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C18H10, SDS of cas: 18512-55-5.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Han, Pei published the artcileThienoisoindigo-based polymers bearing diethynylbenzene and diethynylanthracene units for thin film transistors and solar cells, Formula: C18H10, the publication is Journal of Nanoscience and Nanotechnology (2018), 18(8), 5534-5541, database is CAplus and MEDLINE.

Two thienoisoindigo-based donor-acceptor conjugated polymers were synthesized via Sonogashira coupling reaction with 1,4-diethynylbenzene (P(TII-BEN)) and 9,10-diethynylanthracene (P(TII-ANT)) as donor units, resp. The optical and electrochem. properties of the polymers were also investigated. The highest hole mobility were 4.38 × 10^-3 cm² V^-1 s^-1 for P(TII-BEN) and 9.40 × 10^-3 cm² V^-1 s^-1 for P(TII-ANT) in bottom-gated/top-contact field-effect transistors. The bulk heterojunction organic solar cells consisting of the polymers and PC71BM yielded power conversion efficiencies of 1.59% for P(TII-BEN) and 1.90% for P(TII-ANT). Moreover, the microstructures were investigated by X-ray diffraction and at. force microscopy.

Journal of Nanoscience and Nanotechnology published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C18H10, Formula: C18H10.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Zhao, Zujin published the artcileNovel, yellow-emitting anthracene/fluorene oligomers: synthesis and characterization, Quality Control of 18512-55-5, the publication is Tetrahedron (2007), 63(33), 7809-7815, database is CAplus.

Five highly soluble and strongly yellow fluorescent oligoalkyne dyes with well-controlled, alternating anthracene and fluorene units were successfully synthesized by a Pd/Cu-catalyzed Sonogashira coupling reaction and characterized. Their thermal stabilities, electrochem. behaviors, and photophys. properties were investigated. These oligomers might be used as models to study structure-property relationship for their corresponding polymers and applied in optoelectronics devices as materials themselves.

Tetrahedron published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C21H37BO, Quality Control of 18512-55-5.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Zhang, Chun-Hui published the artcileAn easily and environmentally friendly accessible small-molecule acetylenic donor for organic solar cells, Product Details of C18H10, the publication is Dyes and Pigments (2019), 983-988, database is CAplus.

Photovoltaic aryl acetylenes may provide a green access to high performance electron donors for organic solar cells. Here we describe a solution-processable acetylenic mol. An(DTDPPA)₂, which consists of a central anthracen-9,10-diyl unit and two dithienyldiketopyrrolopyrrole end-groups via acetylenic linkages. It’s worth noting that the acetylenic linkages in An(DTDPPA)₂ enable facile and green accessibility through Sonogashira reactions with atypically high yield and atom efficiency. In solid film An(DTDPPA)₂ features an absorption peak at 630 nm with an emerging shoulder at 686 nm. The HOMO/LUMO level of An(DTDPPA)₂ is estimated as -5.18/-3.62 eV according to cyclic voltammetry and the optical absorption onset. Due to the highly coplanar configuration and close packing, the hole mobility of the thermally annealed film of An(DTDPPA)₂ was improved to as high as 9.30 × 10^-4 cm² V^-1 s^-1. In combination with PC₆₁BM, the bulk heterojunction solar cells provide a power conversion efficiency of 5.26% utilizing no processing additive or solvent vapor annealing. The results are carefully discussed in comparison to the related compounds without the acetylenic linkage and based on the DFT mol. modeling. The demonstrated dramatic effects of acetylenic linkages in this work may encourage and motivate more efforts to design easily accessible and eco-friendly organic semiconductors.

Dyes and Pigments published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C19H14N2, Product Details of C18H10.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Ried, Walter published the artcileEthynylation reactions. XV. Light reactions of 1,4-diethynyl aromatic compounds, Application In Synthesis of 18512-55-5, the publication is Journal fuer Praktische Chemie (Leipzig) (1961), 306-9, database is CAplus.

cf. CA 55, 13392d, 21068c. Light sensitivity of diethynyl aromatic compounds (I) (CA 53, 5210f) was used in preparation of offset printing plates. I, coated from solution onto Al plates, was exposed to light through a negative, unreacted I was removed with solvents, and exposed Al etched with 1% H₃PO₄. Light sensitivity of I increased in the order: 1,4-diethynyl benzene, 9,10-diethynyl anthracene, 1,4-diethynyl naphthalene, and 1,4-diethynyl-2,3-dichloronaphthalene. Light caused ethynyl groups to trimerize to polymeric benzene derivatives

Journal fuer Praktische Chemie (Leipzig) published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C18H10, Application In Synthesis of 18512-55-5.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Achilli, Simona published the artcileSteric hindrance in the on-surface synthesis of diethynyl-linked anthracene polymers, Category: naphthyridine, the publication is Physical Chemistry Chemical Physics (2022), 24(22), 13616-13624, database is CAplus and MEDLINE.

Hybrid sp-sp² structures can be efficiently obtained on metal substrates via on-surface synthesis. The choice of both the precursor and the substrate impacts on the effectiveness of the process and the stability of the formed structures. Here we demonstrate that using anthracene-based precursor mols. on Au(111) the formation of polymers hosting sp carbon chains is affected by the steric hindrance between aromatic groups. In particular, by scanning tunneling microscopy experiments and d. functional theory simulations we show that the de-metalation of organometallic structures induces a lateral separation of adjacent polymers that prevents the formation of ordered domains. This study contributes to the understanding of the mechanisms driving the on-surface synthesis processes, a fundamental step toward the realization of novel carbon-based nanostructures with perspective applications in nanocatalysis, photoconversion, and nano-electronics.

Physical Chemistry Chemical Physics published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C18H10, Category: naphthyridine.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Xu, Linxian published the artcileA Conjugated Polymeric Supramolecular Network with Aggregation-Induced Emission Enhancement: An Efficient Light-Harvesting System with an Ultrahigh Antenna Effect, Product Details of C18H10, the publication is Angewandte Chemie, International Edition (2020), 59(25), 9908-9913, database is CAplus and MEDLINE.

Superior artificial light-harvesting systems (ALHSs) require exceptional capacity in harvesting light and transferring energy. In this work, we report a novel strategy to build ALHSs with an unprecedented antenna effect (35.9 in solution and 90.4 in solid film). The ALHSs made use of a conjugated polymeric supramol. network (CPSN), a crosslinked network obtained from the self-assembly of a pillar[5]arene-based conjugated polymeric host (CPH) and conjugated ditopic guests (Gs). The excellent performance of the CPSN could be attributed to the following factors: (1) The “mol. wire effect” of the conjugated polymeric structure, (2) aggregation-induced enhanced emission (AEE) moieties in the CPH backbone, and (3) high capacity of donor-acceptor energy transfer, and (4) crosslinked structures triggered by the host-guest binding between Gs and CPH. Moreover, the emission of the CPSN could be tuned by using different Gs or varying the host/guest ratio, thus reaching a 96% sRGB area.

Angewandte Chemie, International Edition published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C3H7NO2, Product Details of C18H10.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Lin, Ching-Yao published the artcilePreparation and Spectral, Electrochemical, and Photovoltaic Properties of Acene-Modified Zinc Porphyrins, Recommanded Product: 9,10-Diethynylanthracene, the publication is Journal of Physical Chemistry C (2010), 114(1), 687-693, database is CAplus.

Acene-modified Zn porphyrins (I; E = 1,4-phenylene, 1,4-naphthalenediyl, 9,10-anthacenediyl, 5,12-tetracenediyl, 6,13-pentacenediyl, denoted as LAC-1 to LAC-5, resp.) were prepared to study their absorption spectra, electrochem. properties, and photovoltaic properties. For the absorption spectral changes in THF, porphyrin B bands are red shifted and broadened from 449 to 501 nm for LAC-1 to LAC-3, showing the effect of addnl. π-conjugation. In contrast, the B bands of LAC-4 and LAC-5 are blue-shifted. The tetracenyl group of LAC-4 gives rise to absorption bands in between B and Q bands. However, the Q bands of LAC-1 to LAC-5 are systematically broadened and red shifted from 629 to 751 nm. By comparison, the absorption bands of LAC porphyrins on TiO₂ films are broadened and slightly shifted. Fluorescence emission maxima of LAC porphyrins in THF are also systematically red shifted from LAC-1 to LAC-5. Cyclic voltammetry experiments in THF/TBAP show that the 1st reductions are systematically pos.-shifted from -1.16 to -0.85 V vs. SCE for LAC-1 to LAC-5, indicating the effect of increasing π-conjugation. As for the performance of DSSCs using LAC porphyrins, the overall efficiencies are LAC-1 (2.95%), LAC-2 (3.31%), LAC-3 (5.44%), LAC-4 (2.82%), and LAC-5 (0.10%). Overall efficiency of a LAC-3-sensitized solar cell is nearly twice of that of a LAC-1-sensitized solar cell and is âˆ?1% overall efficiency of N719-sensitized solar cells under the same exptl. conditions. The conversion efficiency of incident photons to current (IPCE) experiments shows that the broadened absorption bands of LAC-3 effectively minimizes the gap between B and Q bands, contributing to the improved DSSC performance. The very poor performance of LAC-5 probably is caused by rapid nonradiative relaxation of the mol. in the singlet excited state.

Journal of Physical Chemistry C published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C18H10, Recommanded Product: 9,10-Diethynylanthracene.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Wang, Dinghui published the artcileA Fluorescent Linear Conjugated Polymer Constructed from Pillararene and Anthracene, Formula: C18H10, the publication is Molecules (2022), 27(10), 3162, database is CAplus and MEDLINE.

Over the past few years, conjugated polymers (CPs) have aroused much attention owing to their rigid conjugated structures, which can perform well in light harvesting and energy transfer and offer great potential in materials chem. In this article, we fabricate a new luminescent linear CP p(P[5](OTf)₂-co-9,10-dea) via the Sonogashira coupling of 9,10-diethynylanthracene and trifluoromethanesulfonic anhydride (OTf) modified pillar[5]arene, generating enhanced yellow-green fluorescence emission at around 552 nm. The reaction condition was screened to get a deeper understanding of this polymerization approach, resulting in an excellent yield as high as 92% ultimately. Besides the optical properties, self-assembly behaviors of the CP in low/high concentrations were studied, where interesting adjustable morphologies from tube to sheet were observed In addition, the fluorescence performance and structural architecture can be disturbed by the host-guest reorganization between the host CP and the guest adiponitrile, suggesting great potential of this CP material in the field of sensing and detection.

Molecules published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C17H14F3N3O2S, Formula: C18H10.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem