Category: 7789-45-9

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”

《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”

《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”

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”

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”

Solovyev, Igor; Ono, Ryota; Nikolaev, Sergey published an article in 2021. The article was titled 《Magnetically Induced Polarization in Centrosymmetric Bonds》, and you may find the article in Physical Review Letters.Related Products of 7789-45-9 The information in the text is summarized as follows:

We reveal the microscopic origin of elec. polarization P→ induced by noncollinear magnetic order. We show that in Mott insulators, such P→ is given by all possible combinations of position operators r→j=(r→ij0,r→ij) and transfer integrals tj=(tij0,tij) in the bonds, where r→ij0 and tij0 are spin-independent contributions in the basis of Kramers doublet states, while r→ij and tij stem solely from the spin-orbit interaction. Among them, the combination tij0r→ij, which couples to the spin current, remains finite in the centrosym. bonds, thus yielding finite P→ in the case of noncollinear arrangement of spins. The form of the magnetoelec. coupling, which is controlled by r→ij, appears to be rich and is not limited to the phenomenol. law P→~εijx[eixej] with εij being the bond vector connecting the spins ei and ej. Using d.-functional theory, we illustrate how the proposed mechanism works in the spiral magnets CuCl2, CuBr2, CuO, and α-Li2IrO3, providing a consistent explanation for the available exptl. data.Cupric bromide(cas: 7789-45-9Related Products of 7789-45-9) 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.Related Products of 7789-45-9

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

《Fully oxygen-tolerant atom transfer radical polymerization triggered by sodium pyruvate》 was written by Szczepaniak, Grzegorz; Lagodzinska, Matylda; Dadashi-Silab, Sajjad; Gorczynski, Adam; Matyjaszewski, Krzysztof. SDS of cas: 7789-45-9 And the article was included in Chemical Science in 2020. The article conveys some information:

ATRP (atom transfer radical polymerization) is one of the most robust reversible deactivation radical polymerization (RDRP) systems. However, the limited oxygen tolerance of conventional ATRP impedes its practical use in an ambient atm. In this work, we developed a fully oxygen-tolerant PICAR (photoinduced initiators for continuous activator regeneration) ATRP process occurring in both water and organic solvents in an open reaction vessel. Continuous regeneration of the oxidized form of the copper catalyst with sodium pyruvate through UV excitation allowed the chem. removal of oxygen from the reaction mixture while maintaining a well-controlled polymerization of N-isopropylacrylamide (NIPAM) or Me acrylate (MA) monomers. The polymerizations of NIPAM were conducted with 250 ppm (with respect to the monomer) or lower concentrations of CuBr2 and a tris[2-(dimethylamino)ethyl]amine ligand. The polymers were synthesized to nearly quant. monomer conversions (>99%), high mol. weights (Mn > 270 000), and low dispersities (1.16 < D < 1.44) in less than 30 min under biol. relevant conditions. The reported method provided a well-controlled ATRP (D = 1.16) of MA in DMSO despite oxygen diffusion from the atm. into the reaction system. The experimental part of the paper was very detailed, including the reaction process of Cupric bromide(cas: 7789-45-9SDS of cas: 7789-45-9)

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.SDS of cas: 7789-45-9

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

In 2019,Inorganica Chimica Acta included an article by Dyukova, I. I.; Lavrenova, L. G.; Kuz’menko, T. A.; Komarov, V. Yu.; Sukhikh, T. S.; Vorontsova, E. V.. Synthetic Route of Br2Cu. The article was titled 《Coordination compounds of Co(II) and Cu(II) halides with 2,4-dimethyl-1,2,4-triazolo[1,5-a]benzimidazole》. The information in the text is summarized as follows:

Coordination compounds based on Co(II) and Cu(II) halides with 2,4-dimethyl-1,2,4-triazolo[1,5-a]benzimidazole (L) [ML2Cl2] (M = Co2+ 1 or Cu2+ 2) and [CuL2Br2] (3) were synthesized. The compounds were characterized by single-crystal XRD anal., UV-visible spectroscopy (diffuse reflectance spectra, DRS) and IR spectroscopy. Via XRD structural anal., crystal structures were determined for [CoL2Cl2] 1, [CuL2Cl2] 2 and [Cu2L2(μ-Cl)2Cl2(H2O)2] 3. Cytotoxic effects of the complexes and ligand on cell line Hep-2 were studied, and the formation of a Cu(II) complex with L considerably enhances cytotoxicity. In the part of experimental materials, we found many familiar compounds, such as Cupric bromide(cas: 7789-45-9Synthetic Route 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.Synthetic Route of Br2Cu

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

Computed Properties of Br2CuIn 2020 ,《Dually-functional riboflavin macromolecule as a supramolecular initiator and reducing agent in temporally-controlled low ppm ATRP》 was published in eXPRESS Polymer Letters. The article was written by Zaborniak, I.; Chmielarz, P.. The article contains the following contents:

A novel supramol. riboflavin-inspired macroinitiator was prepared for the first time by transesterification methodol. and used as the multifunctional vitamin-B2 core to synthesize PBA brushes using different low ppm atom transfer radical polymerization (ATRP) approaches. Firstly the macromol. initiator was successfully applied as a dually-functional structure, which simultaneously acts as a reducing agent in activator regeneration by electron transfer (ARGET) ATRP. Subsequently simplified electrochem. mediated ATRP of BA with different conditions was carried out for the preparation of well-defined riboflavin-based polymer brushes. Polymerizations were characterized in a well-controlled manner, affording polymers with a narrow dispersity (ETH = 1.22-1.25). Four-arms polymers were also received by an approach never described before – temporally-controlled multi-step seATRP under constant current conditions, giving precisely-defined polymer brushes (ETH = 1.26) with preserved chain-end functionality (DCF < 1%), despite stopping and restarting the polymerization The solvolysis results indicate that all chains grow to equal lengths (ETH < 1.17), which shows the precisely controlled characteristic of seATRP. 1H NMR anal. confirms the formation of new vitamin B2-inspired polymers. In connection with the preserved riboflavin functionality and addnl. functional chains, these innovative macromols. may find applications, e.g. as drug delivery systems. In the experiment, the researchers used Cupric bromide(cas: 7789-45-9Computed Properties 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.Computed Properties of Br2Cu

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

《Dynamics of Chiral Cations in Two-Dimensional CuX4 and PbX4 Perovskites (X = Cl and Br)》 was published in Inorganic Chemistry in 2020. These research results belong to Takahashi, Masaki; Hoshino, Norihisa; Sambe, Kohei; Takeda, Takashi; Akutagawa, Tomoyuki. SDS of cas: 7789-45-9 The article mentions the following:

Chiral organic ammonium cations ((R)-2-methylphenethylammonium (R-MPhA) and (R)-3,7-dimethyloctylammonium (R-DMOA)) cations were combined with [MX4]2- anions (M = Cu and Pb, X = Cl and Br) to form two-dimensional (2D) perovskites: (R-MPhA)2CuCl4 (1a), (R-MPhA)2CuBr4 (1b), (R-DMOA)2CuCl4 (2a), (R-DMOA)2CuBr4 (2b), (R-DMOA)2PbCl4 (2c), and (R-DMOA)2PbBr4 (2d). The point shearing of the MX4 octahedron formed 2D perovskite layers, which were sandwiched by the bilayer mol. assembly of chiral organic ammonium cations. We found that the flexible and polar organic R-MPhA and R-DMOA cations in the 2D perovskites played an important role in the phase transition behavior and dielec. responses. Salts 2a-2d showed similar solid-solid (S1-S2) phase transitions, for which the temperatures decreased in the order of CuCl4 (2a) > PbCl4 (2c) > CuBr4 (2b) > PbBr4 (2d). The occupation volume of one R-DMOA per MX4 octahedron determined the dynamic crystalline space for the motional freedom of chiral ammonium in the 2D perovskite layer. Although thermally activated dielec. fluctuations were observed in salts 2a, 2b, and 2c, only an order-disorder-type dielec. phase transition was observed in salt 2d. Interband optical transitions were observed in the CuCl4 and CuBr4 2D perovskites, whereas sharp exciton absorptions were observed in the 2D PbCl4 and PbBr4 layers in perovskite salts 2c and 2d. Chiral organic ammonium cations (R)-2-methylphenethylammonium and (R)-3,7-dimethyloctylammonium were combined with [MX4]2- anions (M = Cu and Pb, X = Cl and Br) to form 2D perovskites. Thermally activated dielec. fluctuations and an order-disorder-type dielec. phase transition was observed in organic layers. Interband optical transitions were observed in the CuCl4 and CuBr4 2D perovskites, whereas sharp exciton absorptions were observed in the 2D PbCl4 and PbBr4 layers.Cupric bromide(cas: 7789-45-9SDS of cas: 7789-45-9) 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.SDS of cas: 7789-45-9

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