Category: 239075-02-6

Mei, Jianguo published the artcileSynthesis of isoindigo-based oligothiophenes for molecular bulk heterojunction solar cells, Recommanded Product: 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, the publication is Organic Letters (2010), 12(4), 660-663, database is CAplus and MEDLINE.

Isoindigo, as a new electron acceptor unit for organic electronic materials, was integrated into two low-energy gap oligothiophenes. Optical and electrochem. studies of the newly synthesized oligomers demonstrate broad absorption through the visible spectrum, along with appropriate energy levels, as desired for light harvesting donors for organic solar cells when blended with [6,6]-phenyl-C₆₁-butyric acid Me ester (PC₆₀BM). Mol. heterojunction solar cells were fabricated using these oligomers and exhibit a power conversion efficiency up to 1.76% with a V_oc of 0.74 V, I_sc of 6.3 mA/cm² and fill factor of 0.38.

Organic Letters 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

Chen, Kai published the artcileTransient Grating Photoluminescence Spectroscopy: An Ultrafast Method of Gating Broadband Spectra, Application In Synthesis of 239075-02-6, the publication is Journal of Physical Chemistry Letters (2014), 5(10), 1732-1737, database is CAplus and MEDLINE.

Ultrafast luminescence (PL) spectroscopy can cleanly resolve excited-state dynamics and coupling to the environment; there is a demand for new methods that combine broadband detection and low backgrounds. A new method, transient grating luminescence spectroscopy (TGPLS), addresses this challenge by exploiting a focusing geometry where ultrafast broadband spectra are transiently diffracted away from the background PL. TGPLS can resolve the complex spectral relaxation observed in conjugated polymer and oligomer solutions, with an essentially flat spectral response throughout the visible region and potentially beyond. The benefits demonstrated using TGPLS could expand access to spectral information, particularly for other multichromophoric and heterogeneous materials where complex spectral relaxation is expected.

Journal of Physical Chemistry Letters 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

Xu, Haitao published the artcileHighly and homogeneously conductive conjugated polyelectrolyte hole transport layers for efficient organic solar cells, Computed Properties of 239075-02-6, the publication is Journal of Materials Chemistry A: Materials for Energy and Sustainability (2017), 5(28), 14689-14696, database is CAplus.

High mobility, stable and thick hole-transporting layer (HTL) materials are highly desirable for organic solar cells (OSCs). Two pH neutral conjugated polyelectrolytes (CPEs), PCPDT-T and PCPDT-2T, based on 3,4-dithia-7H-cyclopenta[a]pentalene and thienyl units with a self-doping effect were designed and synthesized. Between the 2 CPEs, the PCPDT-T exhibits higher, more homogeneous mobility and appropriate work function, which makes it an ideal HTL material for OSCs. The single-junction OSCs modified with the PCPDT-T HTL showed an outstanding power conversion efficiency of 9.3%, which is much higher than that of the PEDOT:PSS-modified devices (8.0%). Notably, the PCPDT-T HTL exhibits excellent thickness insensitivity in fabricating OSC devices, i.e. OSC devices with very thick PCPDT-T interlayers over 50 nm still demonstrated high power conversion efficiencies over 7.1%, which is very compatible to meet the requirement for future roll-to-roll printing.

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 Al2H32O28S3, Computed Properties of 239075-02-6.

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

Bijleveld, Johan C. published the artcileControlling morphology and photovoltaic properties by chemical structure in copolymers of cyclopentadithiophene and thiophene segments, Category: alcohols-buliding-blocks, the publication is Solar Energy Materials & Solar Cells (2010), 94(12), 2218-2222, database is CAplus.

A series of polythiophenes (PTn) based on dialkyl-cyclopentadithiophene (CPDT) units alternating with short un-substituted thiophene segments of length n (n being the number of thiophenes) along the chain has been synthesized to control the morphol. of PTn:PCBM blends for solar cell applications via the chem. structure of the polymer rather than via (post) processing conditions. The degree of phase separation in PTn:PCBM blends can be controlled via n, because with increase in n the number of solubilizing side chains per thiophene is reduced. For the most soluble derivative, PT0, we find that PCBM crystallizes first, while for the least soluble version, PT3, polymer aggregation prevails. The most intimately mixed morphol. and best solar cells were obtained for PT2, which exhibits a power conversion efficiency (PCE) of about 1.5% under AM1.5G conditions when mixed with PCBM. Although the final PCE is moderate, the study represents an example of a rational approach towards morphol. control via chem. structure, rather than via processing.

Solar Energy Materials & Solar Cells 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

Morisaki, Yasuhiro published the artcileXanthene-Based Oligothiophene-Layered Polymers, SDS of cas: 239075-02-6, the publication is Macromolecular Chemistry and Physics (2010), 211(22), 2407-2415, database is CAplus.

We synthesized xanthene-based oligothiophene-layered polymers containing bithiophenes, terthiophenes, quaterthiophenes and quinquethiophenes by the Suzuki-Miyaura coupling reaction. The polymers were characterized by various spectroscopic and electrochem. methods. They were well soluble in common organic solvents and thermally stable. Effective π-π interactions among the layered oligothiophene units in the polymer backbone were not observed in the ground state as well as in the excited state. A possible application of the polymers in opto-electronic devices such as hole transporting materials is expected.

Macromolecular Chemistry and Physics 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

Morisaki, Yasuhiro published the artcileNaphthalene-based oligothiophene-stacked polymers, Product Details of C20H28B2O4S2, the publication is Polymer Journal (Tokyo, Japan) (2010), 42(12), 928-934, database is CAplus.

We report the synthesis and properties of π-stacked polymers consisting of oligothiophene and naphthalene as the stacked π-system and the scaffold, resp. The titled polymers were obtained by the Suzuki-Miyaura coupling reaction. Oligothiophene units were layered in proximity, ∼3.0 Å from each other. Contribution of the quinoidal structure of the oligothiophene units involving the naphthalene scaffolds in the excited state resulted in relatively high photoluminescence quantum efficiencies. The polymers have potential application to optoelectronic devices such as hole-transporting materials. Polymer Journal (2010) 42, 928-934; doi:10.1038/pj.2010.101; published online 27 Oct. 2010.

Polymer Journal (Tokyo, Japan) 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, Product Details of C20H28B2O4S2.

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

Koohmareh, Gholam Ali published the artcileSynthesis, characterization, and optical properties of poly[2-(4-(2,2′-bithiophen-5-yl)phenyl)-4-(4-alkoxyphenyl)-6-phenylpyridine|s, Related Products of alcohols-buliding-blocks, the publication is Designed Monomers and Polymers (2014), 17(5), 401-415, database is CAplus.

Two new copolymers, P₁ and P₂, composed of 4[4-(alkoxy)phenyl]-2, 6-bis(4-bromophenyl)pyridine and bithiophene units, have been synthesized via Suzuki cross-coupling reactions. 4[4-(alkoxy)phenyl]-2, 6-bis(4-bromophenyl)pyridines were synthesized starting from condensation reaction of 4-bromoacetophenone and 4-hydroxy benzaldehyde, and subsequent alkoxylation of hydroxyl groups. All of the polymers and intermediates were characterized using FTIR and NMR spectroscopies. The synthesized polymers exhibit good solubility in common organic solvents. The maximum absorption peak for P₁ and P₂ was 430 and 420 nm, resp. The optical band gap energy of the polymers was determined by absorption onset and found to be 2.17 eV for P₁ and 2.13 eV for P₂.

Designed Monomers and Polymers 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, Related Products of alcohols-buliding-blocks.

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

Donnelly, Liam J. published the artcileC-H Borylation Catalysis of Heteroaromatics by a Rhenium Boryl Polyhydride, Application of 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, the publication is ACS Catalysis (2021), 11(12), 7394-7400, database is CAplus.

Transition metal complexes bearing metal-boron bonds are of particular relevance to catalytic C-H borylation reactions, with iridium polyboryl and polyhydrido-boryl complexes the current benchmark catalysts for these transformations. Herein, we demonstrate that polyhydride boryl phosphine rhenium complexes are accessible and catalyze the C-H borylation of heteroaromatic substrates. Reaction of [K(DME)(18-c-6)][ReH₄(Bpin)(η²-HBpin)(κ²-H₂Bpin)] 1 with 1,3-bis(diphenylphosphino)propane (dppp) produced [K(18-c-6)][ReH₄(η²-HBpin)(dppp)] 2 through substitution of two equivalent of HBpin, and protonation of 2 formed the neutral complex [ReH₆(Bpin)(dppp)] 3. Combined X-ray crystallog. and DFT studies show that 2 is best described as a σ-borane complex, whereas 3 is a boryl complex. Significantly, the boryl complex 3 acted as a catalyst for the C(sp²)-H borylation of a variety of heteroarenes (14 examples including furan, thiophene, pyrrole and indole derivatives) and displayed similar reactivity to the iridium analogs.

ACS Catalysis 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 of 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

Wasin, Tuchinda published the artcileFabrication of “Clickable” Polyfluorene Nanowires with High Aspect Ratio as Biological Sensing Platforms, Related Products of alcohols-buliding-blocks, the publication is ACS Sensors (2016), 1(6), 766-774, database is CAplus.

“Clickable” nanowires with well-defined and uniform structures made of conjugated polyfluorene polymers were successfully fabricated by single particle nanofabrication technique (SPNT). Poly[(9,9-dihex-5-yn-1-ylfluorenyl-2,7-diyl)-co-(9,9′-di-n-octylfluorenyl-2,7-diyl)] (F6E8) and poly[(9,9-dihex-5-yn-1-ylfluorenyl-2,7-diyl)-co-(2,2′-bithiophene)] (F6E2T) underwent an efficient crosslinking reaction upon irradiation, resulting in formation of one-dimensional nanostructures with high and desired aspect ratio reaching up to 200. Alkyne groups on the surface of nanowires were functionalized effectively by click reaction with fluorescent 5-TAMRA-PEG3-azide, which was confirmed by confocal microscopy. Substrates functionalized with the nanowires provide dramatic expansion of “clickable” surface area immobilized directly with TAMRA, and the fluorescence resonance energy transfer (FRET) processes between TAMRA and nanowire backbones are demonstrated as biol. sensing platforms.

ACS Sensors 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 C6H8O3, Related Products of alcohols-buliding-blocks.

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

Ji, Lei published the artcileExperimental and Theoretical Studies of Quadrupolar Oligothiophene-Cored Chromophores Containing Dimesitylboryl Moieties as π-Accepting End-Groups: Syntheses, Structures, Fluorescence, and One- and Two-Photon Absorption, Computed Properties of 239075-02-6, the publication is Chemistry – A European Journal (2014), 20(42), 13618-13635, database is CAplus and MEDLINE.

Quadrupolar oligothiophene chromophores composed of four to five thiophene rings with two terminal (E)-dimesitylborylvinyl groups (4 V-5 V), and five thiophene rings with two terminal aryldimesitylboryl groups (5 B), and an analog of 5 V with a central EDOT ring (5 VE), were synthesized via Pd-catalyzed cross-coupling reactions in high yields (66-89 %). Crystal structures of 4 V, 5 B, bithiophene 2 V, and five thiophene-derived intermediates are reported. Chromophores 4 V, 5 V, 5 B and 5 VE have photoluminescence quantum yields of 0.26-0.29, which are higher than those of the shorter analogs 1 V-3 V (0.01-0.20), and short fluorescence lifetimes (0.50-1.05 ns). Two-photon absorption (TPA) spectra were measured for 2 V-5 V, 5 B and 5 VE in the range 750-920 nm. The measured TPA cross-sections for the series 2 V-5 V increase steadily with length up to a maximum of 1930 GM. We compare the TPA properties of 2 V-5 V with the related compounds 5 B and 5 VE, giving insight into the structure-property relation for this class of chromophore. DFT and TD-DFT results, including calculated TPA spectra, complement the exptl. findings and contribute to their interpretation. A comparison to other related thiophene and dimesitylboryl compounds indicates that our design strategy is promising for the synthesis of efficient dyes for two-photon-excited fluorescence applications.

Chemistry – A European Journal 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