Category: 7789-45-9

In 2019,Macromolecular Rapid Communications included an article by Wang, Jian; Wu, Zhigang; Wang, Guowei; Matyjaszewski, Krzysztof. Safety of Cupric bromide. The article was titled 《In Situ Crosslinking of Nanoparticles in Polymerization-Induced Self-Assembly via ARGET ATRP of Glycidyl Methacrylate》. The information in the text is summarized as follows:

Polymerization-induced self-assembly (PISA) and in situ crosslinking of the formed nanoparticles are successfully realized by activators regenerated by electron-transfer atom transfer radical polymerization (ARGET ATRP) of glycidyl methacrylate (GMA) or a mixture of GMA/benzyl methacrylate (BnMA) monomers in ethanol. Poly(oligo(ethylene oxide) Me ether methacrylate) was employed as macroinitiator/stabilizer, and a cupric bromide/tris(pyridin-2-ylmethyl)amine complex as catalyst. Tin(2-ethylhexanoate) was used as reducing agent for ARGET ATRP, and simultaneously acted as a catalyst for ring-opening polymerization of oxirane ring in GMA. The kinetics shows that the double bond in GMA was completely polymerized in 4.0 h, while only a 33% conversion of oxirane ring in GMA was reached at 117.0 h. Such a large difference would guarantee a smooth PISA and a subsequent in situ crosslinking of formed nanoparticles. The transmission electron microscopy and dynamic light scattering show spherical nanoparticles formed. With a feed molar ratio [BnMA]0/[GMA]0 = 150/50, 100/100, and 50/150, the nanoparticles formed in ethanol can dissociate or swell in toluene. When pure GMA was used, the solid nanoparticles were observed in toluene or ethanol. The ARGET ATRP provides an efficient strategy to stabilize the nanoparticles formed in the PISA of GMA-containing system. After reading the article, we found that the author used Cupric bromide(cas: 7789-45-9Safety of Cupric bromide)

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.Safety of Cupric bromide

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

Beagan, Abeer M.; Alghamdi, Ahlam A.; Lahmadi, Shatha S.; Halwani, Majed A.; Almeataq, Mohammed S.; Alhazaa, Abdulaziz N.; Alotaibi, Khalid M.; Alswieleh, Abdullah M. published an article in 2021. The article was titled 《Folic acid-terminated poly(2-diethyl amino ethyl methacrylate) brush-gated magnetic mesoporous nanoparticles as a smart drug delivery system》, and you may find the article in Polymers (Basel, Switzerland).Computed Properties of Br2Cu The information in the text is summarized as follows:

Currently, chemotherapy is an important method for the treatment of various cancers. Nevertheless, it has many limitations, such as poor tumor selectivity and multi-drug resistance. It is necessary to improve this treatment method by incorporating a targeted drug delivery system aimed to reduce side effects and drug resistance. The present work aims to develop pH-sensitive nanocarriers containing magnetic mesoporous silica nanoparticles (MMSNs) coated with pH-responsive polymers for tumor-targeted drug delivery via the folate receptor. 2-Diethyl amino Et methacrylate (DEAEMA) was successfully grafted on MMSNs via surface initiated ARGET atom transfer radical polymerization (ATRP), with an average particle size of 180 nm. The end groups of poly (2-(diethylamino)ethyl methacrylate) (PDEAEMA) brushes were converted to amines, followed by a covalent bond with folic acid (FA) as a targeting agent. FA conjugated to the nanoparticle surface was confirmed by XPS. pH-Responsive behavior of PDEAEMA brushes was investigated by Dynamic Light Scattering (DLS). The nanoparticles average diameters ranged from ca. 350 nm in basic media to ca. 650 in acidic solution Multifunctional pH-sensitive magnetic mesoporous nanoparticles were loaded with an anti-cancer drug (Doxorubicin) to investigate their capacity and long-circulation time. In a cumulative release pattern, doxorubicin (DOX) release from nano-systems was ca. 20% when the particle exposed to acidic media, compared to ca. 5% in basic media. The nano-systems have excellent biocompatibility and are minimally toxic when exposed to MCF-7, and -MCF-7 ADR cells. In the experiment, the researchers used many compounds, for example, 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”

In 2019,Journal of Molecular Structure included an article by Hajlaoui, Fadhel; Hadj Sadok, Ines Ben; Aeshah, H. Alamri; Audebrand, Nathalie; Roisnel, Thierry; Zouari, Nabil. HPLC of Formula: 7789-45-9. The article was titled 《Synthesis, crystal structures, second harmonic generation response and temperature phase transitions of two noncentrosymmetric Cu(II)-hybrid halides compounds: [(R)-C7H16N2][CuX4] (X = Cl or Br)》. The information in the text is summarized as follows:

(R)-(+)-3-aminoquinuclidine was used in the synthesis of [(R)-C7H16N2][CuCl4] (1) and [(R)-C7H16N2][CuBr4] (2), which both contain similar [CuX4]2- anions (X = Cl or Br). The structures of the two compounds were determined using single-crystal x-ray diffraction. The use of enantiomerically pure sources of (R)-C7H14N2 forces crystallog. noncentrosymmetry. These materials crystallize in the chiral space group P212121, which exhibits the enantiomorphic crystal class 222 (D2). In the mol. arrangement, the [CuX4]2- anions are linked to the organic cations through N-H···X and C-H···X H bonds to form cation-anion-cation mol. units, which are held together by offset face-to-face interactions giving a three-dimensional network. Thermal stability of the crystals was ascertained by TG measurement. 1 And 2 display several phases transition with higher transition temperature at T = 100°. The Kurtz and Perry powder method using Nd:YAG laser shows that their 2nd harmonic generation (SHG) efficiencies are ∼0.81 and 0.82 times as large as that of KH2PO4 (KDP), resp. Such a chiral hybrid metal halides skeleton could provide a new platform for future engineering in the areas including information storage, light modulators and optoelectronic functionalities. After reading the article, we found that the author used Cupric bromide(cas: 7789-45-9HPLC of Formula: 7789-45-9)

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.HPLC of Formula: 7789-45-9

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

The author of 《Growing Polymer Brushes from a Variety of Substrates under Ambient Conditions by Cu0-Mediated Surface-Initiated ATRP》 were Yan, Wenqing; Fantin, Marco; Ramakrishna, Shivaprakash; Spencer, Nicholas D.; Matyjaszewski, Krzysztof; Benetti, Edmondo M.. And the article was published in ACS Applied Materials & Interfaces in 2019. Application In Synthesis of Cupric bromide The author mentioned the following in the article:

Cu0-mediated surface-initiated atom transfer radical polymerization (Cu0 SI-ATRP) is a highly versatile, oxygen-tolerant, and extremely controlled polymer-grafting technique that enables the modification of flat inorganic surfaces, as well as porous organic and polymeric supports of different compositions Exploiting the intimate contact between a copper plate, acting as a source of catalyst and reducing agent, and an initiator-bearing support, Cu0 SI-ATRP enables the rapid growth of biopassive, lubricious brushes from large flat surfaces, as well as from various organic supports, including cellulose fibers and elastomers, using microliter volumes of reaction mixtures, and without the need for deoxygenation of reaction mixtures or an inert atm. Thanks to a detailed anal. of its mechanism and the parameters governing the polymerization process, polymer brush growth by Cu0 SI-ATRP can be precisely modulated and adapted to be applied to morphol. and chem. different substrates, setting up the basis for translating SI-ATRP methods from academic studies into technol. relevant surface-modification approaches. The experimental part of the paper was very detailed, including the reaction process of Cupric bromide(cas: 7789-45-9Application In Synthesis 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.Application In Synthesis of Cupric bromide

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

《Promoting the Efficiency and Stability of CsPbIBr2-Based All-Inorganic Perovskite Solar Cells through a Functional Cu2+ Doping Strategy》 was written by Liu, Pengyun; Yang, Xiaoqing; Chen, Yonghui; Xiang, Huimin; Wang, Wei; Ran, Ran; Zhou, Wei; Shao, Zongping. Application In Synthesis of Cupric bromide And the article was included in ACS Applied Materials & Interfaces in 2020. The article conveys some information:

Although organic-inorganic halide perovskite solar cells (PSCs) have shown dramatically enhanced power conversion efficiencies (PCEs) in the last decade, their long-term stability is still a critical challenge for commercialization. To address this issue, tremendous research efforts have been devoted to exploring all-inorganic PSCs because of their intrinsically high structural stability. Among them, CsPbIBr2-based all-inorganic PSCs have drawn increasing attention owing to their suitable band gap and favorable stability. However, the PCEs of CsPbIBr2-based PSCs are still far from those of their organic-inorganic counterparts, thus inhibiting their practical applications. Herein, we demonstrate that by simply doping an appropriate amount of Cu2+ into a CsPbIBr2 perovskite lattice (0.5 at. % to Pb2+), the perovskite crystallinity and grain size are increased, the perovskite film morphol. is improved, the energy level alignment is optimized, and the trap d. and charge recombination are reduced. As a consequence, a decent PCE improvement from 7.81 to 10.4% is achieved along with an enhancement ratio of 33% with a CsPbIBr2-based PSC. Furthermore, the long-term stability of CsPbIBr2-based PSCs against moisture and heat also remarkably improved by Cu2+ doping. This work provides a facile and effective route to improve the PCE and long-term stability of CsPbIBr2-based all-inorganic PSCs. In the experiment, the researchers used Cupric bromide(cas: 7789-45-9Application In Synthesis 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.Application In Synthesis of Cupric bromide

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

In 2022,Maalej, Wassim; Hajlaoui, Fadhel; Karoui, Karim; Audebrand, Nathalie; Roisnel, Thierry published an article in Journal of Solid State Chemistry. The title of the article was 《Crystal structure and semiconductor properties of copper(II) complex incorporating chiral (R)-(+)-α-Ethylbenzylammonium cations:[(R)-C9H14N]3[CuBr4].Br.》.SDS of cas: 7789-45-9 The author mentioned the following in the article:

The mol. organic-inorganic hybrid halometallate [(R)-C9H14N]3[CuBr4].Br was synthesized by a slow evaporation method. The single-crystal x-ray diffraction experiment evidences that [(R)-C9H14N]3[CuBr4].Br crystallizes in the monoclinic system with the noncentrosym. space group P21 at T = 150K. The compound displays a zero-dimensional (0D) structure which consists in 3 chiral [(R)-C9H14N]+ cations, 1 anionic [CuBr4]2-, and free Br- ion. The Cu(II) has an intermediate geometry between regular tetrahedron (Td) and square planar (D4h). In the crystal structure, the cations and anions are arranged in alternating stacks which are interconnected via H bonding contacts N-H···Br. This hybrid compound presents good thermal stability up to 370 K. The DSC and elec. measurements show that no phase transition occurs in the compound over the temperature range 223-423 K. Optical absorption measurements suggest that [(R)-C9H14N]3[CuBr4].Br has a narrow direct optical band gap (Eg) of ∼2.15 eV which makes it a promising material in optoelectronic devices. In the experiment, the researchers used 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”

Application In Synthesis of Cupric bromideIn 2019 ,《Facile and efficient Cu(0)-mediated radical polymerization of pentafluorophenyl methacrylate grafting from poly(ethylene terephthalate) film》 appeared in European Polymer Journal. The author of the article were Nguyen, Thi Phuong Thu; Barroca-Aubry, Nadine; Dragoe, Diana; Mazerat, Sandra; Brisset, Francois; Herry, Jean-Marie; Roger, Philippe. The article conveys some information:

Grafting polymers bearing active esters, especially pentafluorophenyl methacrylate (PFPMA), onto or from surface is a promising approach towards the preparation of highly functional materials due to the ease in post-polymerization modification of their corresponding polymers. Herein, a handy and efficient chem. modification process is proposed to modify extreme surface of poly(ethylene terephthalate) (PET) films towards the final purpose of grafting PFPMA polymer from PET surface via surface-initiated Cu(0)-mediated radical polymerization The characteristics of modified surface were evaluated after each step using various techniques including water contact angle, attenuated total reflectance Fourier-transform IR spectroscopy, XPS, at. force microscopy, and scanning electron spectroscopy. Due to its robust conditions, the proposed approach allows grafting at ease PFPMA polymer from PET supporting surface, which not only enhances the reactivity of this inert material but also improves significantly the hydrophobicity of the surface. The experimental process involved the reaction of Cupric bromide(cas: 7789-45-9Application In Synthesis of Cupric bromide)

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.Application In Synthesis of Cupric bromide

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

In 2019,Journal of Physics: Condensed Matter included an article by Zhao, Z. Y.; Che, H. L.; Chen, R.; Wang, J. F.; Sun, X. F.; He, Z. Z.. Product Details of 7789-45-9. The article was titled 《Magnetism study on a triangular lattice antiferromagnet Cu2(OH)3Br》. The information in the text is summarized as follows:

Magnetism of Cu2(OH)3Br single crystals based on a triangular lattice is studied by means of magnetic susceptibility, pulsed-field magnetization, and sp. heat measurements. There are two inequivalent Cu2+ sites in an asym. unit. Both Cu2+ sublattices undergo a long-range antiferromagnetic (AFM) order at TN = 9.3 K. Upon cooling, an anisotropy crossover from Heisenberg to XY behavior is observed below 7.5 K from the anisotropic magnetic susceptibility. The magnetic field applied within the XY plane induces a spin-flop transition of Cu2+ ions between 4.9 T and 5.3 T. With further increasing fields, the magnetic moment is gradually increased but is only about half of the saturation of a Cu2+ ion even in 30 T. The individual reorientation of the inequivalent Cu2+ spins under field is proposed to account for the magnetization behavior. The observed spin-flop transition is likely related to one Cu site, and the AFM coupling among the rest Cu spins is so strong that the 30 T field cannot overcome the anisotropy. The temperature dependence of the magnetic sp. heat, which is well described by a sum of two gapped AFM contributions, is a further support for the proposed scenario. In the part of experimental materials, we found many familiar compounds, such as Cupric bromide(cas: 7789-45-9Product Details of 7789-45-9)

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.Product Details of 7789-45-9

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

《Lead-free two-dimensional (R-NH3)2MX4 inorganic-organic hybrids: solid-solid phase transitions and broadband emission》 was published in Journal of Physics D: Applied Physics in 2020. These research results belong to Bochalya, Madhu; Kumar, Sunil. Application In Synthesis of Cupric bromide The article mentions the following:

Among the large family of two-dimensional inorganic-organic hybrid material systems, the lead-free ones are significantly important due to their nontoxicity and suitability in energy storage devices, heat management in electronics, optoelectronics, light-emitting and memory devices, low-temperature magnetic refrigeration, and other applications. Thermal stability, solid-solid phase transitions and light emission properties of solution-processed copper- and manganese-based (R-NH3)2MX4 hybrids are reported here. Manganese chloride and long carbon chain-based systems are found to be highly stable as compared to the others. Thermally stable up to temperatures beyond 240 °C, these systems are seen to exhibit multiple solid-solid phase transitions in the temperature range of 30 °C-100 °C. The nature of the phase transitions depends on the length and the conformation of the organic chain, and the metal-halogen network present in them. Owing to the phase-change temperatures being near the room temperature as well as the high-value enthalpy and entropy changes, (C12H25NH3)2MnCl4 is more appropriate for energy storage and release applications. Also, these systems exhibit broadband light emission under ambient conditions to provide a low-cost route to white light-emitting devices. The results came from multiple reactions, including the reaction of Cupric bromide(cas: 7789-45-9Application In Synthesis 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.Application In Synthesis of Cupric bromide

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

Category: copper-catalystIn 2022 ,《Polymer Grafted Nanoparticle Composites with Enhanced Thermal and Mechanical Properties》 appeared in ACS Applied Materials & Interfaces. The author of the article were Kubiak, Joshua M.; Li, Buxuan; Suazo, Mathew; Macfarlane, Robert J.. The article conveys some information:

The distribution of filler particles within a polymer matrix nanocomposite has a profound influence on the properties and processability of the material. While filler aggregation and percolation can significantly enhance particular functionalities such as thermal and elec. conductivity, the formation of larger filler clusters and networks can also impair mech. properties like strength and toughness and can also increase the difficulty of processing. Here, a strategy is presented for the preparation of functional composites that enhance thermal conductivity over polymer alone, without neg. affecting mech. performance or processability. Thermal crosslinking of self-suspended polymer grafted nanoparticles is used to prepare highly filled (>50 volume %) macroscopic nanocomposites with homogeneously dispersed, non-percolating alumina particles in an organic matrix. The initial composites use low glass transition temperature polymer grafts and thus are flexible and easily shaped by thermoforming methods. However, after thermal aging, the resulting materials display high stiffness (>10 GPa) and enhanced thermal conductivity (>100% increase) and also possess mech. strength similar to commodity plastics. Moreover, the covalent bonding between matrix and filler allows for the significant elevation of thermal conductivity despite the extensive interfacial area in the nanocomposite. The thermal aging of polymer grafted nanoparticles is therefore a promising method for producing easily processable, mech. sturdy, and macroscopic nanocomposites with improved thermal conductivity The experimental part of the paper was very detailed, including the reaction process of Cupric bromide(cas: 7789-45-9Category: copper-catalyst)

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.Category: copper-catalyst

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