Category: 239075-02-6

Abiko, Yohei published the artcileThermoresponsive core-shell nanoparticles with cross-linked π-conjugate core based on amphiphilic block copolymers by RAFT polymerization and palladium-catalyzed coupling reactions, Category: alcohols-buliding-blocks, the publication is Polymer (2014), 55(23), 6025-6035, database is CAplus.

Well-defined amphiphilic block copolymers composed of S-vinyl sulfides and N-iso-Pr acrylamide (NIPAM) were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization Thermoresponsive core-shell nanoparticles with crosslinked π-conjugate cores were obtained by in situ crosslinking reactions between 4-bromophenyl moieties in the block copolymers and diboronic acids or a diamine compound in the presence of a palladium catalyst following micelle formation in ethanol/H₂O or ethanol. We initially investigated RAFT polymerization of two S-vinyl sulfide derivatives, namely Ph vinyl sulfide (PVS) and 4-bromophenyl vinyl sulfide (BPVS), using a dithiocarbamate-type chain transfer agent (CTA). Then, RAFT polymerization of NIPAM using poly(S-vinyl sulfide) macro-CTAs was conducted to synthesize the amphiphilic block copolymers. Suzuki and Buchwald-Hartwig coupling reactions were found to be effective in the preparation of core-shell nanoparticles with thermoresponsive shells and crosslinked optoelectronic cores. The resulting nanoparticles showed characteristic thermoresponsive properties, as confirmed by turbidity and dynamic light scattering measurements. Stable and uniform core crosslinked nanoparticles were successfully prepared by the in situ palladium-catalyzed coupling reactions, and the optoelectronic and thermoresponsive properties of the nanoparticles could be tuned depending on the nature of the difunctional coupling agents, reaction conditions, and comonomer composition of the block copolymers.

Polymer published new progress about 239075-02-6. 239075-02-6 belongs to alcohols-buliding-blocks, auxiliary class Thiophene,Boronic acid and ester,Boronate Esters, name is 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, and the molecular formula is C20H28B2O4S2, Category: alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Fernando, Roshan published the artcileRod-like oligomers incorporating 2,6-dialkylamino core-substituted naphthalene diimide as acceptors for organic photovoltaic, HPLC of Formula: 239075-02-6, the publication is Organic Electronics (2013), 14(6), 1683-1692, database is CAplus.

Core-substituted naphthalene diimides (core-substituted NDIs) were incorporated into rod-like mols. and oligomers through reaction at the imide nitrogen positions. N,N’-Di(4-bromophenyl)-2,6-di(N-alkylamino)-1,4,5,8-naphthalenetetracarboxydiimide was synthesized in only three steps, and used as a versatile platform to prepare extended structures by reaction with thiophene substrates using Suzuki-coupling conditions. The optoelectronic properties of the new compounds were examined by UV/vis absorption spectroscopy, fluorescence spectroscopy, cyclic voltammetry and theor. calculations The imide substituents had little effect on the optical and electrochem. properties of core-substituted NDIs in solution A bathochromic shift of the absorption was observed upon film formation, accompanied by quenching of fluorescence. These observations are consistent with increased inter-mol. interactions between core-substituted NDI moieties in the solid state. All compounds were tested in organic solar cells by blending with poly(3-hexylthiophene), and several showed a photovoltaic effect, demonstrating their potential as electron acceptors in organic solar cell. The best solar cell was observed for core-substituted NDI with 4-(thiophen-2-yl)phenyl imide substituents (5a), showing a power conversion efficiency of 0.57% and a large open circuit voltage of 0.87 V. This approach allows new structure-property relationship studies of non-fullerene acceptors in organic solar cells, where one can vary the imide substituent to optimize photovoltaic parameters while keeping the optical and electrochem. properties constant

Organic Electronics published new progress about 239075-02-6. 239075-02-6 belongs to alcohols-buliding-blocks, auxiliary class Thiophene,Boronic acid and ester,Boronate Esters, name is 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, and the molecular formula is C20H28B2O4S2, HPLC of Formula: 239075-02-6.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Rundel, Kira published the artcileNaphthalene diimide-based small molecule acceptors for organic solar cells, Recommanded Product: 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, the publication is Journal of Materials Chemistry A: Materials for Energy and Sustainability (2017), 5(24), 12266-12277, database is CAplus.

This work introduces six novel naphthalene diimide (NDI) mol. acceptors for evaluation in organic solar cells based on two different chem. architectures: a star-shaped structure with a triarylamine core flanked by three NDI moieties and a linear mol. composed of a bithiophene bridge between two NDI moieties. For each mol. structure, three different side chains are examined, with alkyl chains linked to the NDI core either through oxygen, sulfur, or nitrogen substituents. Both the chem. structure and the side-chain heteroatom substitution were found to influence the optoelectronic and photovoltaic properties of these mol. acceptors. Organic solar cells were fabricated with each acceptor, utilizing PBDTTT-EFT (also known as PTB7-Th) as the donor material in inverted bulk-heterojunction devices. Nitrogen was observed to lower the solar cell performance for these acceptors by significantly decreasing the short circuit c.d. (J_SC), while sulfur increased the J_SC and, in the star configuration, led to the highest power conversion efficiency (PCE) of 2.8% – which is amongst the highest for any mol. NDI-based acceptor to date. Grazing incidence wide-angle x-ray scattering (GIWAXS) measurements of the star-shaped materials showed the side-chain substitutional atom significantly alters the material’s packing configuration in neat films, with films blended with PBDTTT-EFT showing features characteristic of the neat donor and acceptor materials, indicating that the small mols. do not disrupt the packing of PBDTTT-EFT (and vice versa). Resonant soft x-ray scattering (R-SoXS) measurements indicate the PBDTTT-EFT:star-shaped acceptor blends are not subject to coarse phase-separation, with the average domain size for all three star-shaped acceptor blends typically being <100 nm. This is confirmed by similar topog. for blended films in AFM images amongst the three acceptors. Photoluminescence (PL) quenching measurements, however, found large differences in PL quenching efficiency which were attributed to differences in the driving force for charge transfer, with the nitrogen substituted compound showing the lowest PL quenching and the sulfur replacement showing the highest.

Journal of Materials Chemistry A: Materials for Energy and Sustainability published new progress about 239075-02-6. 239075-02-6 belongs to alcohols-buliding-blocks, auxiliary class Thiophene,Boronic acid and ester,Boronate Esters, name is 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, and the molecular formula is C20H28B2O4S2, Recommanded Product: 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Horie, Masaki published the artcileCyclopentadithiophene based polymers; a comparison of optical, electrochemical and organic field-effect transistor characteristics, SDS of cas: 239075-02-6, the publication is Journal of Materials Chemistry (2010), 20(21), 4347-4355, database is CAplus.

A series of cyclopentadithiophene based polymers have been synthesized by oxidative polymerization or palladium-catalyzed coupling reactions. Polymers have been prepared with backbones containing benzothiadiazole, benzoxadiazole, 2,2′-bithiophene, Ph and fluorene units. The backbone structure is shown to have a large effect on the film morphol., and the optical and electrochem. properties in solution and the solid state. We show that the polymer composition can be used to tune the band gap over the entire visible spectrum. Spin-coated films of these polymers have been used as the active layer of organic field effect transistors and hole mobilities up to 3.7 × 10^-3 cm² V^-1 s^-1 have been measured under ambient conditions.

Journal of Materials Chemistry published new progress about 239075-02-6. 239075-02-6 belongs to alcohols-buliding-blocks, auxiliary class Thiophene,Boronic acid and ester,Boronate Esters, name is 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, and the molecular formula is C20H28B2O4S2, SDS of cas: 239075-02-6.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Min, Jie published the artcileA star-shaped D-π-A small molecule based on a tris(2-methoxyphenyl)amine core for highly efficient solution-processed organic solar cells, Recommanded Product: 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, the publication is Journal of Materials Chemistry C: Materials for Optical and Electronic Devices (2014), 2(36), 7614-7620, database is CAplus.

A new star-shaped D-π-A small mol., 2,2′,2”-{nitrilotris[(3-methoxy-4,1-phenylene)-2,2′-bithiene-5′,5-diyleth-1-yl-1-ylidene]}tri-malononitrile N(Ph(OMe)-2T-DCN-Me)₃, with high efficiency potential for photovoltaic applications was synthesized. Introducing a soluble tris(2-methoxyphenyl)amine (TPA-MeO) core unit can significantly improve the solubility of star-shaped small mols. without neg. impacting intramol. conjugation and intermol. solid state arrangements. Solution-processed organic solar cells based on a blend of N(Ph(OMe)-2T-DCN-Me)₃ and PC₇₀BM show an initially high power conversion efficiency of over 4% under simulated AM 1.5.

Journal of Materials Chemistry C: Materials for Optical and Electronic Devices published new progress about 239075-02-6. 239075-02-6 belongs to alcohols-buliding-blocks, auxiliary class Thiophene,Boronic acid and ester,Boronate Esters, name is 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, and the molecular formula is C20H28B2O4S2, Recommanded Product: 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Usta, Hakan published the artcileDithienosilole- and Dibenzosilole-Thiophene Copolymers as Semiconductors for Organic Thin-Film Transistors, Computed Properties of 239075-02-6, the publication is Journal of the American Chemical Society (2006), 128(28), 9034-9035, database is CAplus and MEDLINE.

The synthesis and physicochem. properties of a new class of thiophene/arenesilole-containing π-conjugated polymers are reported. Examples of this new polymer class include the following: poly(2,5-bis(3′,3”-dihexylsilylene-2′,2”-bithieno)thiophene) (TS6T1), poly(2,5′-bis(3”,3”’-dihexylsilylene-2”,2”’-bithieno)bithiophene) (TS6T2), poly(2,5′-bis(2”,2”’-dioctylsilylene-1”,1”’-biphenyl)thiophene) (BS8T1), and poly(2,5′-bis(2”,2”’-dioctylsilylene-1”,1”’-biphenyl)bithiophene) (BS8T2). Organic field-effect transistors (OFETs) with hole mobilities as high as 0.02-0.06 cm²/V s in air, low turn-on voltages, and current on/off ratios >10⁵-10⁶ are fabricated using solution processing techniques with the above polymers as the active channel layer. OFETs based on this polymer class exhibit excellent ambient operational stability.

Journal of the American Chemical Society published new progress about 239075-02-6. 239075-02-6 belongs to alcohols-buliding-blocks, auxiliary class Thiophene,Boronic acid and ester,Boronate Esters, name is 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, and the molecular formula is C13H17BF3NO2, Computed Properties of 239075-02-6.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Usta, Hakan published the artcileSilole-based polymeric semiconductors for organic thin film transistors, Related Products of alcohols-buliding-blocks, the publication is PMSE Preprints (2007), 337-338, database is CAplus.

Four new silolearene-thiophene copolymers were synthesized and their properties in organic field-effect transistors (OFETs) were studied. Carrier mobilities ≤0.06 cm²/Vs and current on/off ratios of 10⁵-10⁶ for unaligned films were measured in devices functioning in ambient conditions. The silole-based systems can be synthesized in high yields, are environmentally stable, and yield solution-processable films which act as efficient hole transporters in FET devices.

PMSE Preprints published new progress about 239075-02-6. 239075-02-6 belongs to alcohols-buliding-blocks, auxiliary class Thiophene,Boronic acid and ester,Boronate Esters, name is 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, and the molecular formula is C10H12O5, Related Products of alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Hau, King In published the artcileSynthesis of Metallo-conjugated Copolymer with Electron Deficient Main Chain and the Formation of Polymer-Carbon Nanotube Hybrids, Application In Synthesis of 239075-02-6, the publication is Journal of Inorganic and Organometallic Polymers and Materials (2020), 30(1), 243-253, database is CAplus.

The authors report the synthesis of a conjugated polymer incorporated with electron-deficient dipyrridophenanzine units and pendant ruthenium complexes. The electronic transition and photophys. properties of the polymer were thoroughly studied. Due to the presence of an extended conjugated system, polymer main chain was able to interact strongly with carbon nanotube (CNT) surface by π-π interaction, resulting in the formation of a dispersion in organic solvents. The polymer-nanotube hybrid was characterized by different microscopic and spectroscopic experiments Raman spectroscopic results suggested that the electron d. of the CNT decreased after the formation of polymer/nanotube hybrids, which suggests there is an electronic interaction between the polymer main chain and CNT.

Journal of Inorganic and Organometallic Polymers and Materials published new progress about 239075-02-6. 239075-02-6 belongs to alcohols-buliding-blocks, auxiliary class Thiophene,Boronic acid and ester,Boronate Esters, name is 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, and the molecular formula is C20H28B2O4S2, Application In Synthesis of 239075-02-6.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Zhao, Yong published the artcileAchieving the low interfacial tension by balancing crystallization and film-forming ability of the cathode interlayer for organic solar cells, HPLC of Formula: 239075-02-6, the publication is Journal of Colloid and Interface Science (2022), 880-890, database is CAplus and MEDLINE.

A series of mols. with imide units bridged by the core of thiophene-based groups, namely N-dimethylaminopropyl-4-thiophene-1,8- naphthalimide (NT), bis(N-dimethylaminopropyl)-4-thiophene-1,8-naphthalimide (NTN), and bis(N-dimethylaminopropyl)-4-bithiophene-1,8-naphthalimide (N2TN), have been reported as cathode interfacial materials (CIMs) to realize low interfacial tension with the blend in organic solar cells (OSCs). We evaluated the Ohmic contact between the active layer and these cathode interlayers based on various characterizations, which is of great significance for further understanding these imide-based interlayers. It turned out that the homogeneous and continuous NTN interlayer as a CIM balanced the factors of crystallization and film-forming property, and broke through the limitation of poor conductivity and high aggregation in our previous work. Moreover, compared with NT and N2TN, the NTN interlayer achieve a combination of good solubility in methanol, efficient electron mobility, and aligned work function. These advantages of NTN are conducive to the realization of high-efficient interfacial electron collection and transfer, thus improving the short-circuit c.d. (JSC) and filling factor (FF) of devices. Therefore, the binary OSCs (PM6:Y6) based on NTN engineered aluminum-cathode with excellent stability demonstrate a maximum power conversion efficiency (PCE) of 16.56 %, which is higher than NT (PCE = 1.34 %) and N2TN (PCE = 13.90 %). The enhanced performance is ascribed to the improvement of JSC and FF, which is originated from the outstanding conductivity and high-quality interface of NTN. Surprisingly, the PM6:Y6-based semitransparent device with NTN obtain a PCE of 13.43 % with an average visible transmittance of 17.79 %, which is better than traditional PDINO. This study highlights a potential strategy for enhancing the performance of OSCs by the interface engineering via decreasing the interfacial intension.

Journal of Colloid and Interface Science published new progress about 239075-02-6. 239075-02-6 belongs to alcohols-buliding-blocks, auxiliary class Thiophene,Boronic acid and ester,Boronate Esters, name is 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, and the molecular formula is C11H8O3, HPLC of Formula: 239075-02-6.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Cheng, Jing-Zhao published the artcileAchieving an unprecedented hydrogen evolution rate by solvent-exfoliated CPP-based photocatalysts, Computed Properties of 239075-02-6, the publication is Journal of Materials Chemistry A: Materials for Energy and Sustainability (2020), 8(12), 5890-5899, database is CAplus.

How to prompt higher photocatalytic hydrogen production (PHP) efficiency from water to achieve practical applications still remains a big challenge with conjugated porous polymers (CPP)-based photocatalysts. Herein, a simple and efficient cosolvent-assisted strategy is developed to significantly improve the photocatalytic efficiency of CPP-based photocatalysts by introducing water-soluble aprotic bipolar co-solvents, including N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMAc), and N-Me pyrrolidone (NMP). The PHP activity of the pyrene-bithiophene-based CPP (named CP-St) using ascorbic acid (AA) as a sacrificial electron donor could be excellently accelerated in the presence of an aprotic bipolar NMP solvent. CP-St dispersed in an NMP/H₂O/AA mixed solution under visible-light (λ > 420 nm) irradiation without the aid of a Pt cocatalyst achieved an unprecedented hydrogen evolution rate (HER) of 190.7 mmol h^-1 g^-1. As a result, 6 mg CP-St amazingly produced 128.1 mL H₂ (∼5.72 mmol) under visible-light irradiation for only 5 h. Excitingly, by introducing 0.5 wt% Pt cocatalyst into the NMP/H₂O/AA system, the HER of CP-St could be further boosted to 303.7 mmol h^-1 g^-1 (1.82 mmol h^-1/6 mg), which represents the highest photocatalytic HER ever reported. This outstanding photocatalytic performance is mainly ascribed to the enhanced dispersity, strong hydrogen-bond interactions, and exfoliation effect by the NMP solvent. This study provides us with some new design ideas and opportunities for effectively catering to the actual hydrogen production demand.

Journal of Materials Chemistry A: Materials for Energy and Sustainability published new progress about 239075-02-6. 239075-02-6 belongs to alcohols-buliding-blocks, auxiliary class Thiophene,Boronic acid and ester,Boronate Esters, name is 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, and the molecular formula is C20H28B2O4S2, Computed Properties of 239075-02-6.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts