Category: 3141-27-3

《Photocatalytic Partial Oxidation of 5-Hydroxymethylfurfural (HMF) to 2,5-Diformylfuran (DFF) Over a Covalent Triazine Framework in Water》 was written by Ayed, Cyrine; Huang, Wei; Kizilsavas, Goenuel; Landfester, Katharina; Zhang, Kai A. I.. Recommanded Product: 2,5-Dibromothiophene And the article was included in ChemPhotoChem in 2020. The article conveys some information:

Conversion of biomass into high value products via environmentally benign processes remains a challenging task for chemists. Photocatalytic partial oxidation of the biochem. 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF) has attracted much attention as DFF is known to be a pivotal precursor in the biochem. industry. Previously, this reaction has been catalyzed with transition metal based catalytic systems in organic solvents. Herein, we report the use of a covalent triazine framework (CTF) as a highly stable and porous organic photoactive polymer for the photocatalytic partial oxidation of HMF to DFF in water, using mol. oxygen as a green oxidant. The photocatalyst showed high efficiency in affording DFF as the target product with good reusability. In addition to this study using 2,5-Dibromothiophene, there are many other studies that have used 2,5-Dibromothiophene(cas: 3141-27-3Recommanded Product: 2,5-Dibromothiophene) was used in this study.

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene may be used as starting reagent for the synthesis of α,α′-didecylquater-, -quinque- and -sexi-thiophenes.Recommanded Product: 2,5-Dibromothiophene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Tao, Tao; Fang, Dongsheng; Chen, Yunyun; Fan, Yuting; Lu, Haijie published an article in 2021. The article was titled 《The length effect and color tuning of tetraphenylethylene functionalized oligothiophenes for effective detection of explosives》, and you may find the article in Dyes and Pigments.Computed Properties of C4H2Br2S The information in the text is summarized as follows:

Aggregation-induced fluorescent materials are of great importance in optoelectronics and bioelectronics in solid-state devices. Herein, functionalized oligothiophenes were designed and synthesized with the tetraphenylethylene (TPE) groups to explore the length effect and color tuning for the effective detection of explosives. Remarkably, compounds 2TPE1T and 2TPE2T show an aggregation-induced emission phenomenon, while longer π-conjugated mols. 2TPE3T, 2TPE4T, TPE5T and 2TPE6T show aggregation-caused quenching character, where the reason has been explained based on UV-Vis spectra ranging from 378-446 nm. Furthermore, fluorescent titration experiments demonstrate that dye 2TPE1T has a better response than dye 2TPE2T for nitroaroms. The visual detection limit of 2,6-DNT is 18.2 ng/cm2 in the test strip of 2TPE1T. In addition, there is an exquisitely linear curve between the theor. and exptl. energy levels for TPE functionalized oligothiophenes. The effect of introducing TPE end-capped on the energy gap convergence has also been discussed, showing the energy level correlation of linear fitting combined with a theor. and exptl. perspective. This result not only paves the way toward π-functional materials but also expands their applications. In the part of experimental materials, we found many familiar compounds, such as 2,5-Dibromothiophene(cas: 3141-27-3Computed Properties of C4H2Br2S)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene may be used as starting reagent for the synthesis of α,α′-didecylquater-, -quinque- and -sexi-thiophenes.Computed Properties of C4H2Br2S

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Product Details of 3141-27-3In 2020 ,《High refractive index inverse vulcanized polymers for organic photonic crystals》 appeared in Crystals. The author of the article were Tavella, Christian; Lova, Paola; Marsotto, Martina; Luciano, Giorgio; Patrini, Maddalena; Stagnaro, Paola; Comoretto, Davide. The article conveys some information:

Photonic technologies are nowadays dominated by highly performing inorganic structures that are commonly fabricated via lithog. or epitaxial growth. Unfortunately, the fabrication of these systems is costly, time consuming, and does not allow for the growth of large photonic structures. All-polymer photonic crystals could overcome this limitation thanks to easy solubility and melt processing. On the other hand, macromols. often do not offer a dielec. constant large enough to approach the performances of their inorganic counterparts. In this work, the authors demonstrate a new approach to achieve high dielec. constant distributed Bragg reflectors with a photonic band gap that is tunable in a very broad spectral region. A highly transparent medium was developed through a blend of a com. polymer with a high refractive index inverse vulcanized polymer that is rich in sulfur, where the large polarizability of the S-S bond provides refractive index values that are unconceivable with common non-conjugated polymers. This approach paves the way to the recycling of sulfur byproducts for new high added-value nanostructures. In the experiment, the researchers used 2,5-Dibromothiophene(cas: 3141-27-3Product Details of 3141-27-3)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene polymerizes by debromination with magnesium catalyzed by nickel compounds to form poly(2,5- thienylene) .Product Details of 3141-27-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Theoretical and photovoltaic investigations of 1,3,5-triazine-based photosensitizers achieving highly efficient DSSCs》 was written by Zhang, Hai; Zang, Xu-Feng; Hong, Yan-Ping; Chen, Zhen-E.. COA of Formula: C4H2Br2SThis research focused ontriazine based dye sensitized solar cell. The article conveys some information:

By establishing a new push-pull relationship, three novel metal-free organic sensitizers based on A′-π-A framework were synthesized, in which A′ and A represent the auxiliary acceptor (triazine) and the main acceptor (cyanoacrylic acid), resp., coded ZS03, ZS04, and ZS05. In this paper, the mol. structure, photophys. property, electrochem. property, theor. calculation, and photovoltaic property of these three sensitizers are described in detail. The results show that the addnl. acceptor and alkyl chains significantly affect the mol.′s energy level and spatial structure. In terms of photovoltaic characteristics, the ZS03-based device exhibits the best power conversion efficiency (PCE) of 7.11%, corresponding to a short-circuit photocurrent d. (Jsc) of 14.31 mA cm-2, an open-circuit voltage (Voc) of 708 mV, and a fill factor (FF) of 0.723, which is the highest efficiency among the known A′-π-A type dyes. It can be determined that the improvement of PCE is mainly due to the combination of the following two factors: the π-spacer with appropriate length and the alkyl chain with a reasonable layout. In the experimental materials used by the author, we found 2,5-Dibromothiophene(cas: 3141-27-3COA of Formula: C4H2Br2S)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene polymerizes by debromination with magnesium catalyzed by nickel compounds to form poly(2,5- thienylene) .COA of Formula: C4H2Br2S

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Triphenylamine-based hole transporting materials with thiophene-derived bridges for perovskite solar cells》 was written by Wu, Guohua; Zhang, Yaohong; Kaneko, Ryuji; Kojima, Yoshiyuki; Sugawa, Kosuke; Islam, Ashraful; Otsuki, Joe; Liu, Shengzhong. Related Products of 3141-27-3This research focused ontriphenylamine thiophene hole transport material perovskite solar cell. The article conveys some information:

A triphenylamine-based compound containing benzoyl[1,2-b:4,5-b’]dithiophene (BDT) derivative (BTPA-2) has been synthesized and employed in FA0.85MA0.15PbI3 perovskite solar cells (PSCs) as the hole transporting material (HTM). The reference BTPA-1 containing thiophene bridge was also prepared for a comparative study. Compared to the thiophene unit in BTPA-1, the hexyloxy substituted BDT unit in BTPA-2 made the HOMO energy level lower. The more conjugated system with the BDT unit can improve the conductivity and hole mobility. The BTPA-1 and BTPA-2 based FA0.85MA0.15PbI3 PSCs showed the best power conversion efficiencies (PCE) of 12.76% and 13.97%, resp. Larger Voc and higher Jsc for the BTPA-2 based PSC were attributed to its reduced interfacial recombination and more conjugated system compared to the BTPA-1 based PSCs. More hydrophobic property of BTAP-2 made its PSC exhibit better environmental stability than BTPA-1. The results came from multiple reactions, including the reaction of 2,5-Dibromothiophene(cas: 3141-27-3Related Products of 3141-27-3)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene may be used as starting reagent for the synthesis of α,α′-didecylquater-, -quinque- and -sexi-thiophenes.Related Products of 3141-27-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Bi-continuous orthorhombic soft matter phase made of polycatenar molecules》 was published in Soft Matter in 2020. These research results belong to Matraszek, Joanna; Pociecha, Damian; Vaupotic, Natasa; Salamonczyk, Miroslaw; Vogrin, Martin; Gorecka, Ewa. Synthetic Route of C4H2Br2S The article mentions the following:

We report an observation of a new type of a continuous soft matter phase with an orthorhombic symmetry made of polycatenar mols. The bi-continuous orthorhombic structure with the Pcab symmetry appears by deformation of a double gyroid cubic structure with the Ia3̅d symmetry. After reading the article, we found that the author used 2,5-Dibromothiophene(cas: 3141-27-3Synthetic Route of C4H2Br2S)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene may be used in the preparation of soluble α,ω-diformyl-a-oligothiophenes.Synthetic Route of C4H2Br2S

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Synthesis and characterization of a semiconducting and solution-processable ruthenium-based polymetallayne》 was published in Polymer Chemistry in 2020. These research results belong to Ho, Po-Yuen; Komber, Hartmut; Horatz, Kilian; Tsuda, Takuya; Mannsfeld, Stefan C. B.; Dmitrieva, Evgenia; Blacque, Olivier; Kraft, Ulrike; Sirringhaus, Henning; Lissel, Franziska. Category: bromides-buliding-blocks The article mentions the following:

Polymetallaynes are a special class of Wolf type-III polymers with high potential in organic electronics, especially in applications such as OFET, OLED and OPV. However, almost all reported polymetallaynes contain group 10 metals, while functional polymetallaynes with earlier transition metals have rarely been reported. Here, different synthetic routes to a group 8 polymetallayne P[Ru(dppe)2-DDBT], containing Ru(II) centers bridged in the trans-position by the organic linker 3,3′-didodecyl-5,5′-diethynyl-2,2′-bithiophene (DDBT), are explored. The polymer is obtained by copper-free dehydrohalogenation, characterized using NMR, IR and UV-vis spectroscopy, MALDI-TOF-MS, GPC and CV. In solution, CV studies show two separated metal-centered redox processes, indicating that the charge between metal centers is delocalized via the bridging ligand and a mixed-valence species exists (Kc = 102). In thin-films, P[Ru(dppe)2-DDBT] exhibits a single oxidation wave with a higher peak current intensity, consistent with a two-electron process and localized charge. Despite a d.p. ∼32 based on NMR and GPC studies, P[Ru(dppe)2-DDBT] is fully solution processable, and thin-films were obtained via spin-coating using different solvents. AFM investigations of the films showed very low surface roughness, and first OFET devices with a top-gate bottom-contact (TGBC) architecture were fabricated to characterize the electronic properties, confirming the semiconducting behavior of the polymetallayne. The experimental part of the paper was very detailed, including the reaction process of 2,5-Dibromothiophene(cas: 3141-27-3Category: bromides-buliding-blocks)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene may be used in the preparation of soluble α,ω-diformyl-a-oligothiophenes.Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Su, Yingbin; Miao, Yawei; Zhu, Yaowei; Zou, Wentao; Yu, Bing; Shen, Youqing; Cong, Hailin published their research in Polymer Chemistry in 2021. The article was titled 《A design strategy for D-A conjugated polymers for NIR-II fluorescence imaging》.Application of 3141-27-3 The article contains the following contents:

The development of bioimaging technol. in recent years has shown that second near-IR (NIR-II) fluorescence imaging (FI) is gradually replacing the traditional visible light and first near-IR (NIR-I) FI. In the NIR-II window, the light absorption, autofluorescence and scattering of biol. tissues are significantly reduced, which strongly promotes the design, development and application of contrast agents with NIR-II emission capabilities. However, the NIR-II bioimaging technol. is still incomplete, in the initial stage, and has high research value. In order to increase the quantum yield (QY) of D-A polymers, we used thiophene, 3-methoxythiophene, 3,4-ethylenedioxythiophene (EDOT), 3-hexylthiophene and 3-(2-ethylhexyl)thiophene as strong electron donors and designed and synthesized NIR-II organic polymers P1, P2, P3, P4 and P5, which are of great significance to the mol. design of D-A conjugated polymers. Finally, we explored the FI of the polymers in vivo and in vitro, and verified our idea of increasing the QY. In the part of experimental materials, we found many familiar compounds, such as 2,5-Dibromothiophene(cas: 3141-27-3Application of 3141-27-3)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene may be used in the preparation of soluble α,ω-diformyl-a-oligothiophenes.Application of 3141-27-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yuan, Yuehua; Zhou, Wenfa; Tian, Maozhong; Song, Jiangtao; Bai, Yunfeng; Feng, Feng; Song, Yinglin published an article in 2021. The article was titled 《Synthesis, characterization and third-order nonlinear optical behaviour of three novel ethyne-linked donor/acceptor chromophores》, and you may find the article in Dyes and Pigments.Name: 2,5-Dibromothiophene The information in the text is summarized as follows:

Three novel ethyne-linked donor/acceptor chromophores, BAB, BAS and SAS were synthesized. The results of BAB in femtosecond and nanosecond Z-scan at 532 nm reveal that the transition from saturable absorption (SA) to reverse saturable absorption (RSA), while that of BAS and SAS display RSA. The femtosecond Z-scan results for all compounds at 600 nm-800 nm indicate the obvious RSA, which can be mainly attributed to the two-photon absorption (TPA). The TA results demonstrate that all compounds display strong excited-state absorption and long lifetime, and the evolution of TA spectra for these compounds reveals the relaxation process from the local excited-state (LE) to charge transfer state (CTS). With different conjugation extent and intramol. charge transfer (ICT), the nonlinear response and excited-state dynamics of these chromophores could be dramatically modulated. The threshold of BAS/DCM solution excited at 532 nm with nanosecond pulse was 0.631 J/cm2. These compounds may be the potential candidates for future application in optical limiting. In the experiment, the researchers used 2,5-Dibromothiophene(cas: 3141-27-3Name: 2,5-Dibromothiophene)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene may be used as starting reagent for the synthesis of α,α′-didecylquater-, -quinque- and -sexi-thiophenes.Name: 2,5-Dibromothiophene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Product Details of 3141-27-3In 2021 ,《Non-fullerene organic photovoltaics based on thienopyrroledione comprising random copolymers; effect of alkyl chains》 was published in Renewable Energy. The article was written by Yasa, Mustafa; Depci, Tolga; Alemdar, Eda; Hacioglu, Serife O.; Cirpan, Ali; Toppare, Levent. The article contains the following contents:

Two new random donor-acceptor (D-A) copolymers, signed as P1 and P2, were designed and synthesized. Electrochem. and spectroelectrochem. measurements were performed to investigate absorption, energy levels, electronic and optical band gaps for comparison. The polymers were used as donor polymers in the active layer to fabricate non-fullerene, bulk heterojunction (BHJ) organic photovoltaics (OPVs). Investigations were carried out through the conventional BHJ structure; ITO/PEDOT: PSS/Active Layer/LiF/Al, where active layer consists of 3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2′,3′-d′]-s-indaceno[1,2-b:5,6-b′]dithiophene (ITIC) as the acceptor and thienopyrroledione containing donors. The device based on P1:ITIC(1:1) blend with a thickness of 161 nm gave the best performance with a power conversion efficiency (PCE) of 7.94%, an open-circuit voltage (VOC) of 0.86 V, a short-c.d. (JSC) of 18.45 mA cm-2 and a fill factor (FF) of 50.12%. The highest PCE obtained from P2 based organic solar cell is 1.96%. P2 exhibited low solubility attributed to the lack of alkyl groups enhancing polymer solubility, electronic properties, and photovoltaic performances. The research outputs exhibit that introduction of alkyl chains on the polymer backbone can enhance device performance. In the part of experimental materials, we found many familiar compounds, such as 2,5-Dibromothiophene(cas: 3141-27-3Product Details of 3141-27-3)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene polymerizes by debromination with magnesium catalyzed by nickel compounds to form poly(2,5- thienylene) .Product Details of 3141-27-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary