Day: October 17, 2022

The author of 《Photo-induced copper-RDRP in continuous flow without external deoxygenation》 were Marathianos, Arkadios; Liarou, Evelina; Anastasaki, Athina; Whitfield, Richard; Laurel, Matthew; Wemyss, Alan M.; Haddleton, David M.. And the article was published in Polymer Chemistry in 2019. Quality Control of Cupric bromide The author mentioned the following in the article:

Photo-induced Cu-RDRP of acrylates in a continuous flow reactor without the need for deoxygenation or externally added reagents. Optimization of the catalyst concentration and the flow rate/residence time leads to well-defined polyacrylates with controlled mol. weights, excellent initiator efficiency, high end-group fidelity polymers and product uniformity. A multifunctional initiator was also used to demonstrate the versatility of the system. In the experiment, the researchers used many compounds, for example, Cupric bromide(cas: 7789-45-9Quality Control of Cupric bromide)

Cupric bromide(cas: 7789-45-9) can be used as reducing agent, when complexed by three molecules of pyridine initiators for the controlled polymerization of styrene, methyl acrylate and methyl methacrylate.Quality Control of Cupric bromide

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Torras, Miquel; Roig, Anna published their research in Crystal Growth & Design in 2021. The article was titled 《Copper Oxide Nanocubes Wrapping Metals by Microwave Synthesis》.Safety of Bis(acetylacetone)copper The article contains the following contents:

Copper and copper oxide nanoparticles (NPs) are industrially important. In particular, Cu-based nanocatalysts find applicability in electrocatalysis and photocatalysis, profiting from the accessible oxidation states of copper and a band gap in the visible region of the Cu2O phase. However, in this case, the fast recombination of the charge carriers compromises the final photocatalytic efficiency. The combination of Cu2O with metals often results in higher and more stable photocatalytic efficiency. Here, the fabrication of noble metal NPs [Au, Ag, Pd, and Pt] and Cu2O heterostructures (HSs) by a microwave (MW)-assisted synthesis is presented. The selectivity of the MW technique with a fast two-step protocol enabled us to easily prepare these multicomponent nanoparticles in a short time (~40 min). First, metal NPs (Au, Ag, or Pd) are synthesized through a MW-assisted polyol approach, and these NPs serve as nucleation seeds for cubic Cu2O wrapping. Other types of heterostructures were found when using smaller Pt NPs instead. Focusing on Au NPs as the core, we analyzed the effect of the gold to copper molar ratio on the shape yield of the nanocubes, reported their optic and plasmonic properties, and demonstrated the reproducibility and scalability of the synthetic routes. Here, we are providing a pioneering example of MW heating as a non-conventional energy source for a general chem. approach to attain a family of complex metal/metal oxide heterostructures.Bis(acetylacetone)copper(cas: 13395-16-9Safety of Bis(acetylacetone)copper) was used in this study.

Bis(acetylacetone)copper(cas: 13395-16-9) catalyzes coupling and carbene transfer reactions. Metal acetylacetonates are used as catalysts for polymerization of olefins and transesterification. Safety of Bis(acetylacetone)copper

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Synthetic Route of Br2CuIn 2022 ,《Complement Activation Dramatically Accelerates Blood Plasma Fouling On Antifouling Poly(2-hydroxyethyl methacrylate) Brush Surfaces》 appeared in Macromolecular Bioscience. The author of the article were Riedel, Tomas; de los Santos Pereira, Andres; Taborska, Johanka; Riedelova, Zuzana; Pop-Georgievski, Ognen; Majek, Pavel; Pecankova, Klara; Rodriguez-Emmenegger, Cesar. The article conveys some information:

Non-specific protein adsorption (fouling) triggers a number of deleterious events in the application of biomaterials. Antifouling polymer brushes successfully suppress fouling, however for some coatings an extremely high variability of fouling for different donors remains unexplained. The authors report that in the case of poly(2-hydroxyethyl methacrylate) (poly(HEMA)) this variability is due to the complement system activation that causes massive acceleration in the fouling kinetics of blood plasma. Using plasma from various donors, the fouling kinetics on poly(HEMA) is analyzed and correlated with proteins identified in the deposits on the surface and with the biochem. compositions of the plasma. The presence of complement components in fouling deposits and concentrations of C3a in different plasmas indicate that the alternative complement pathway plays a significant role in the fouling on poly(HEMA) through the “”tick-over”” mechanism of spontaneous C3 activation. The generated C3b binds to the poly(HEMA) surface and amplifies complement activation locally. Heat-inactivated plasma prevents accelerated fouling kinetics, confirming the central role of complement activation. The results highlight the need to take into account the variability between individuals when assessing interactions between biomaterials and blood plasma, as well as the importance of the mechanistic insight that can be gained from protein identification.Cupric bromide(cas: 7789-45-9Synthetic Route of Br2Cu) was used in this study.

Cupric bromide(cas: 7789-45-9) can be used as reducing agent, when complexed by three molecules of pyridine initiators for the controlled polymerization of styrene, methyl acrylate and methyl methacrylate.Synthetic Route of Br2Cu

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Safety of Bis(acetylacetone)copperIn 2019 ,《Classes of non-conventional tetraspanins defined by alternative splicing》 was published in Scientific Reports. The article was written by Hochheimer, Nikolas; Sies, Ricarda; Aschenbrenner, Anna C.; Schneider, Dirk; Lang, Thorsten. The article contains the following contents:

Tetraspanins emerge as a family of membrane proteins mediating an exceptional broad diversity of functions. The naming refers to their four transmembrane segments, which define the tetraspanins’ typical membrane topol. In this study, we analyzed alternative splicing of tetraspanins. Besides isoforms with four transmembrane segments, most mRNA sequences are coding for isoforms with one, two or three transmembrane segments, representing structurally mono-, di- and trispanins. Moreover, alternative splicing may alter transmembrane topol., delete parts of the large extracellular loop, or generate alternative N- or C-termini. As a result, we define structure-based classes of non-conventional tetraspanins. The increase in gene products by alternative splicing is associated with an unexpected high structural variability of tetraspanins. We speculate that non-conventional tetraspanins have roles in regulating ER exit and modulating tetraspanin-enriched microdomain function.Bis(acetylacetone)copper(cas: 13395-16-9Safety of Bis(acetylacetone)copper) was used in this study.

Bis(acetylacetone)copper(cas: 13395-16-9) is used as PVC stabilizer, and curing agents for epoxy resins, acrylic adhesives and silicone rubbers. It is also used as solvents, lubricant additives, paint drier, and pesticides.Safety of Bis(acetylacetone)copper

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

In 2019,Chemistry – An Asian Journal included an article by Ooi, Shota; Tanaka, Takayuki; Ikeue, Takahisa; Yamasumi, Kazuhisa; Ueta, Kento; Shimizu, Daiki; Ishida, Masatoshi; Furuta, Hiroyuki; Osuka, Atsuhiro. Synthetic Route of C10H16CuO4. The article was titled 《Bis-copper(II) Complex of Triply-linked Corrole Dimer and Its Dication》. The information in the text is summarized as follows:

Copper complexes of corroles have recently been a subject of keen interest due to their ligand noninnocent character and unique redox properties. Here the authors studied bis-copper complex of a triply-linked corrole dimer that serves as a pair of divalent metal ligands but can be reduced to a pair of trivalent metal ligands. Reaction of triply-linked corrole dimer 2 with Cu(acac)2 (acac = acetylacetonate) gave bis-copper(II) complex 2Cu as a highly planar mol. with a mean-plane deviation value of 0.020 Å, where the two copper ions were revealed to be divalent by ESR, SQUID, and XPS methods. Oxidation of 2Cu with two equivalent of AgBF4 gave complex 3Cu, which was characterized as a bis-copper(II) complex of a dicationic triply-linked corrole dimer not as the corresponding bis-copper(III) complex. In accord with this assignment, the structural parameters around the copper ions were revealed to be quite similar for 2Cu and 3Cu. Importantly, the magnetic spin-spin interaction differs depending on the redox-state of the ligand, being weak ferromagnetic in 2Cu and antiferromagnetic in 3Cu.Bis(acetylacetone)copper(cas: 13395-16-9Synthetic Route of C10H16CuO4) was used in this study.

Bis(acetylacetone)copper(cas: 13395-16-9) is used as PVC stabilizer, and curing agents for epoxy resins, acrylic adhesives and silicone rubbers. It is also used as solvents, lubricant additives, paint drier, and pesticides.Synthetic Route of C10H16CuO4

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

In 2019,Applied Physics Express included an article by Ikenoue, Takumi; Kawai, Toshikazu; Wakashima, Ryo; Miyake, Masao; Hirato, Tetsuji. SDS of cas: 13395-16-9. The article was titled 《Hole mobility improvement in Cu2O thin films prepared by the mist CVD method》. The information in the text is summarized as follows:

A high-mobility Cu2O thin film was fabricated using the mist chem. vapor deposition (CVD) method. This was achieved by suppressing the contamination from nitrogen impurities and optimum growth conditions to obtain single-phase Cu2O without CuO. A 600 nm Cu2O thin film was obtained using EDTA as a complexing agent in dry-air growth atm. for 120 min. The resulting thin film had a resistivity of 2.8 × 102 Ω ·cm, carrier concentration of 1.2 × 1015 cm-3 and hole mobility of 19.3 cm2·V-1·s-1. This hole mobility improved by two or more orders of magnitude compared to that of previous Cu2O thin film obtained by the mist CVD method. In the experiment, the researchers used many compounds, for example, Bis(acetylacetone)copper(cas: 13395-16-9SDS of cas: 13395-16-9)

Bis(acetylacetone)copper(cas: 13395-16-9) is used as PVC stabilizer, and curing agents for epoxy resins, acrylic adhesives and silicone rubbers. It is also used as solvents, lubricant additives, paint drier, and pesticides.SDS of cas: 13395-16-9

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

《UV irradiation of Cu-based complexes with aliphatic amine ligands as used in living radical polymerization》 was published in European Polymer Journal in 2020. These research results belong to Liarou, Evelina; Staniforth, Michael; Town, James S.; Marathianos, Arkadios; Grypioti, Maria; Li, Yongguang; Chang, Yujing; Efstathiou, Spyridon; Hancox, Ellis; Wemyss, Alan M.; Wilson, Paul; Jones, Bryn A.; Aljuaid, Mohammed; Stavros, Vasilios G.; Haddleton, David M.. Computed Properties of Br2Cu The article mentions the following:

The effect UV irradiation on Cu(II)-based complexes with aliphatic amine ligands is investigated. Four aliphatic amines are used as ligands and Cu(II)Br2 as the metal source for the formation of catalyst complexes that can be used for the photoinduced Cu-RDRP of Me acrylate. Different characterization techniques such as transient electronic absorption spectroscopy (TEAS), UV-visible (UV-Vis) spectroscopy, electrospray ionization time of flight mass spectrometry (ESI-ToF-MS) and cyclic voltammetry (CV) are applied in order to provide insights into the catalyst behavior upon photo-irradiation The excited-state dynamics, the electrochem. behavior of the Cu(II)/Cu(I) redox couples and the detection of different species upon complexation of the ligand to the metal center (before and after UV irradiation) are further depicted in the quality of the obtained polymers. The experimental process involved the reaction of Cupric bromide(cas: 7789-45-9Computed Properties of Br2Cu)

Cupric bromide(cas: 7789-45-9) can be used as reducing agent, when complexed by three molecules of pyridine initiators for the controlled polymerization of styrene, methyl acrylate and methyl methacrylate.Computed Properties of Br2Cu

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Li, Minchan; Qin, Ning; Ji, Zongwei; Gan, Qingmeng; Wang, Zhenyu; Li, Yingzhi; Cao, Lujie; Yuan, Huimin; He, Dongsheng; Chen, Zhenhua; Luo, Guangfu; Zhang, Kaili; Lu, Zhouguang published their research in Journal of Chemical Physics in 2021. The article was titled 《Single copper sites dispersed on defective TiO2-x as a synergistic oxygen reduction reaction catalyst》.Recommanded Product: 13395-16-9 The article contains the following contents:

Catalysts containing isolated single atoms have attracted much interest due to their good catalytic behavior, bridging the gap between homogeneous and heterogeneous catalysts. Here, we report an efficient oxygen reduction reaction (ORR) catalyst that consists of atomically dispersed single copper sites confined by defective mixed-phased TiO2-x. This synergistic catalyst was produced by introducing Cu2+ to a metal organic framework (MOF) using the Mannich reaction, occurring between the carbonyl group in Cu(acac)2 and the amino group on the skeleton of the MOF. The embedding of single copper atoms was confirmed by at.-resolution high-angle annular dark-field scanning transmission electron microscopy and x-ray absorption fine structure spectroscopy. Electronic structure modulation of the single copper sites coupling with oxygen vacancies was further established by ESR spectroscopy and first-principles calculations Significantly enhanced ORR activity and stability were achieved on this special Cu single site. The promising application of this novel electrocatalyst was demonstrated in a prototype Zn-air battery. This strategy of the stabilization of single-atom active sites by optimization of the at. and electronic structure on a mixed matrix support sheds light on the development of highly efficient electrocatalysts. (c) 2021 American Institute of Physics. The results came from multiple reactions, including the reaction of Bis(acetylacetone)copper(cas: 13395-16-9Recommanded Product: 13395-16-9)

Bis(acetylacetone)copper(cas: 13395-16-9) is used as PVC stabilizer, and curing agents for epoxy resins, acrylic adhesives and silicone rubbers. It is also used as solvents, lubricant additives, paint drier, and pesticides.Recommanded Product: 13395-16-9

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

《From magnetic order to quantum disorder in the Zn-barlowite series of S = 1/2 kagome antiferromagnets》 was written by Tustain, Katherine; Ward-O′Brien, Brendan; Bert, Fabrice; Han, Tianheng; Luetkens, Hubertus; Lancaster, Tom; Huddart, Benjamin M.; Baker, Peter J.; Clark, Lucy. Electric Literature of Br2CuThis research focused onzinc barlowite antiferromagnets magnetic order quantum disorder. The article conveys some information:

We report a comprehensive muon spectroscopy study of the Zn-barlowite series of S = (1/2) kagome antiferromagnets, ZnxCu4-x(OH)6FBr, for x = 0.00 to 0.99(1). By combining muon spin relaxation and rotation measurements with state-of-the-art d.-functional theory muon-site calculations, we observe the formation of both μ-F and μ-OH complexes in Zn-barlowite. From these stopping sites, implanted muon spins reveal the suppression of long-range magnetic order into a possible quantum spin liquid state upon the increasing concentration of Zn-substitution. In the parent compound (x = 0), static long-range magnetic order below TN = 15 K manifests itself in the form of spontaneous oscillations in the time-dependent muon asymmetry signal consistent with the dipolar fields expected from the calculated muon stopping sites and the previously determined magnetic structure of barlowite. Meanwhile, in the x = 1.0 end-member of the series-in which antiferromagnetic kagome layers of Cu2+S = (1/2) moments are decoupled by diamagnetic Zn2+ ions-we observe that dynamic magnetic moment fluctuations persist down to at least 50 mK, indicative of a quantum disordered ground state. We demonstrate that this crossover from a static to dynamic magnetic ground state occurs for compositions of Zn-barlowite with x > 0.5, which bears resemblance to the dynamical behavior of the widely studied Zn-paratacamite series that contains the quantum spin liquid candidate herbertsmithite. In the experiment, the researchers used Cupric bromide(cas: 7789-45-9Electric Literature of Br2Cu)

Some reported applications of Cupric bromide(cas: 7789-45-9) are: catalyst in cross coupling reactions; co-catalyst in Sonogashira coupling; lewis acid in enantioselective addition of alkynes.Electric Literature of Br2Cu

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

In 2019,Chemistry Research Journal included an article by Gomaa, Esam A.; Mahmoud, Mahmoud H.; El-Hady, Mahmoud N. Abd; Elfarhaty, Yasmeen. Y.. Formula: Br2Cu. The article was titled 《Interaction of CuBr2 with succinic acid in KCl solution (cyclic voltammetry) using glassy carbon working electrode (GWE)》. The information in the text is summarized as follows:

The electrochem. behavior was studied for CuBr2 in the absence and presence of Succinic acid (SuA) sep. in 0.1M KCl solution The Glassy carbon electrode was prepared in our laboratory, which used as working electrode for measuring the voltammograms of CuBr2 in 0.1M KCl at 18.7°C. Stability constant and Gibbs free energy of interaction for CuBr2 + Succinic acid was done and their values were discussed. The experimental part of the paper was very detailed, including the reaction process of Cupric bromide(cas: 7789-45-9Formula: Br2Cu)

Some reported applications of Cupric bromide(cas: 7789-45-9) are: catalyst in cross coupling reactions; co-catalyst in Sonogashira coupling; lewis acid in enantioselective addition of alkynes.Formula: Br2Cu

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”