Tag: 200-300

In 2022,Abid Derbel, Marwa; Nasr, Samia; Naili, Houcine; Rekik, Walid published an article in Inorganic Chemistry Communications. The title of the article was 《Thermal behavior and optical properties of a new dimeric 1D mixed halide hybrid material [CuBrCl(C2H8N2)]》.Synthetic Route of Br2Cu The author mentioned the following in the article:

A new organic-inorganic Cu-based hybrid material containing ethylenediamine as organic part and mixed bromide/chloride as halide ions was synthesized and crystallog. characterized. At room temperature, this new compound adopts the monoclinic symmetry (space group P21/m) and presents the following unit-cell parameters: a 6.927(3), b 5.884(3), c 8.399(4) Å, β 94.856(13)° and Z = 2. The 1-dimensional structure of the title compound consists of infinite dimeric chains running along the crystallog. b axis. These chains are constructed from dimeric units [Cu2Br2Cl2(C2H8N2)2] linked together by sharing (Br/Cl) atoms. N-H… Br/Cl H bonds guarantee the connection between the dimeric chains and the cohesion of the structure. The TGA shows that this new hybrid material decomposes in two stages giving rise to the Cu oxide as final residue. The UV-visible absorption shows that the new complex undergoes three optical absorption bands at 238, 317 and 686 nm, resp. From the gap energy value of 2.92 eV the new mixed halide compound is a semiconductor material. The results came from multiple reactions, including the reaction of 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”

In 2022,Ghosh, Boyli; Banerjee, Ambar; Roy, Lisa; Manna, Rabindra Nath; Nath, Rounak; Paul, Ankan published an article in Angewandte Chemie, International Edition. The title of the article was 《The Role of Copper Salts and O2 in the Mechanism of C≃N Bond Activation for Facilitating Nitrogen Transfer Reactions》.Synthetic Route of Br2Cu The author mentioned the following in the article:

CN bond scission can be a potential avenue for the functionalization of chem. bonds. We have conducted a computational study, using d. functional theory (DFT) and ab initio multireference CASSCF methods, to unravel the intricate mechanistic pathways traversed in the copper-promoted, dioxygen-assisted reaction for the formation of aryl isocyanate species from aryl aldehyde. This aryl isocyanate species acts as an active species for CN bond cleavage of coordinated cyanide anion enabling nitrogen transfer to various aldehydes. Electronic structure anal. revealed that under all the reaction conditions radical-based pathways are operative, which is in agreement with the exptl. findings. The major driving force is a CuII/I redox cycle initiated by single-electron transfer from the carbon center of the nitrile moiety. Our study reveals that the copper salts act as the “”electron pool”” in this unique nitrogen transfer reaction forming an aryl isocyanate species from aryl aldehydes. In addition to this study using Cupric bromide, there are many other studies that have used Cupric bromide(cas: 7789-45-9Synthetic Route of Br2Cu) was used in this study.

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”

Han, Yulian; Hamada, Morihiko; Chang, I-Ya; Hyeon-Deuk, Kim; Kobori, Yasuhiro; Kobayashi, Yoichi published an article in 2021. The article was titled 《Fast T-Type Photochromism of Colloidal Cu-Doped ZnS Nanocrystals》, and you may find the article in Journal of the American Chemical Society.COA of Formula: C10H16CuO4 The information in the text is summarized as follows:

This paper reports on durable and nearly temperature-independent (at 298-328 K) T-type photochromism of colloidal Cu-doped ZnS nanocrystals (NCs). The color of Cu-doped ZnS NC powder changes from pale yellow to dark gray by UV light irradiation, and the color changes back to pale yellow on a time scale of several tens of seconds to minutes after stopping the light irradiation, while the decoloration reaction is accelerated to submillisecond in solutions This decoloration reaction is much faster than those of conventional inorganic photochromic materials. The origin of the reversible photoinduced coloration is revealed to be a strong optical transition involving a delocalized surface hole which survives over a minute after escaping from intraparticle carrier recombination due to electron-hopping dissociation ZnS NCs can be easily prepared in a water-mediated one-pot synthesis and are less toxic. Therefore, they are promising for large-scale photochromic applications such as windows and building materials in addition to conventional photochromic applications. Moreover, the present study demonstrates the importance of excited carrier dynamics and trap depths, resulting in coloration over minutes not only for photochromic nanomaterials but also for various advanced photofunctional materials, such as long persistent luminescent materials and photocatalytic nanomaterials. The experimental part of the paper was very detailed, including the reaction process of Bis(acetylacetone)copper(cas: 13395-16-9COA of Formula: C10H16CuO4)

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.COA of Formula: C10H16CuO4

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

《Mitochondria-targeting NO gas nanogenerator for augmenting mild photothermal therapy in the NIR-II biowindow》 was published in Chemical Communications (Cambridge, United Kingdom) in 2020. These research results belong to Wu, Canchen; Wang, Danqi; Cen, Moupan; Cao, Leyu; Ding, Yue; Wang, Jin; Yuan, Xiaolei; Wang, Yang; Chen, Tingting; Yao, Yong. Product Details of 13395-16-9 The article mentions the following:

An intelligent nitric oxide gas-releasing nanoplatform based on CuS-nanoplates has been designed to overcome the heat endurance of tumor cells by the inhibition of HSP90 expression with the released NO gas in mitochondria and thereby realize enhanced PTT under mild temperature conditions.Bis(acetylacetone)copper(cas: 13395-16-9Product Details of 13395-16-9) 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.Product Details of 13395-16-9

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

Electric Literature of Br2CuIn 2020 ,《Surface-Initiated Passing-through Zwitterionic Polymer Brushes for Salt-Selective and Antifouling Materials》 was published in Macromolecules (Washington, DC, United States). The article was written by Vy, Ngoc Chau H.; Liyanage, Chinthani D.; Williams, Robert M. L.; Fang, Justin M.; Kerns, Peter M.; Schniepp, Hannes C.; Adamson, Douglas H.. The article contains the following contents:

The use of the traditional growing-from approach to prepare surface-initiated polymer brushes is widespread as it produces polymer brushes with higher grafting densities than grafting-to methods. In this article, we present an investigation of a passing-though approach that supplies the monomer from below the initiator-functionalized surface, inverting the concentration gradient found in the traditional growing-from technique that has been shown to increase the D of brushes. Using Fourier transform IR (FTIR) spectroscopy mapping combined with substrate masking, we show that the brushes incorporate only monomer diffusing from below and not from the surrounding solution Further, we characterize these brushes with contact angle anal., FTIR, and at. force microscopy and compare them to brushes synthesized by the traditional growing-from approach. Finally, we demonstrate that several properties of the zwitterionic polymer brush prepared by our passing-through method, for example, wettability, grafting d., uniformity, salt permeation retardation, and fouling resistance, are superior to those of brushes prepared by the growing-from technique. After reading the article, we found that the author used Cupric bromide(cas: 7789-45-9Electric Literature 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.Electric Literature of Br2Cu

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

Product Details of 13395-16-9In 2021 ,《Comparative study of the thermal behavior of Sr-Cu-O gels obtained by sol-gel and microwave-assisted sol-gel method》 was published in Journal of Thermal Analysis and Calorimetry. The article was written by Predoana, Luminita; Atkinson, Irina; Karaj, Daniel Attila; Odhiambo, Vincent Otieno; Bakos, Laszlo Peter; Nagyne Kovacs, Teodora; Pandele-Cusu, Jeanina; Petrescu, Simona; Rusu, Adriana; Szilagyi, Imre M.; Pokol, Gyorgy; Zaharescu, Maria. The article contains the following contents:

In the present paper, the thermal behavior of Sr-Cu-O gels obtained by sol-gel (SG) or microwave (MW)-assisted SG methods was studied in order to establish the appropriate thermal conditions for pure nanostructured SrCu2O2 preparation As reagents, copper and strontium acetylacetonate in alc. media were used. The starting solutions were homogenized either by stirring for 2 h at room temperature or were exposed to MW for 5 min at 300 W and a frequency of 2.45 GHz. Both solutions were left to gel at room temperature The obtained gels were investigated by SEM, Fourier-transform IR spectroscopy, as well as by thermal anal. combined with evolved gas anal. (TG/DTA-MS) measurements in air, inert and reducing atmospheres. For both type of samples, a stepwise thermal decomposition of the gels was noticed in a large temperature range. In the case of samples obtained by microwave-assisted SG method, a higher number of thermal effects were registered assigned to a higher number of mol. species formed in the sample. The residues obtained by non-isothermal treatment up to 900°C, of both type of samples, were investigated by X-ray diffraction. The results demonstrate the influence of the MW on the SG synthesis and on the thermal properties of the resulted gels. Based on the obtained results, the required thermal treatment of the gels in order to obtain convenient precursors powders for obtaining pure SrCu2O2 could be proposed. The experimental part of the paper was very detailed, including the reaction process of Bis(acetylacetone)copper(cas: 13395-16-9Product Details of 13395-16-9)

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. Product Details of 13395-16-9

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

Computed Properties of Br2CuIn 2019 ,《Controlled Synthesis of Polymers on the Basis of Stearyl Methacrylate and Their Use as Depressor Additives》 was published in Polymer Science, Series B: Polymer Chemistry. The article was written by Simanskaya, K. Yu.; Grishin, I. D.; Pavlovskaya, M. V.; Grishin, D. F.. The article contains the following contents:

The controlled synthesis of poly(stearyl methacrylate) and stearyl methacrylate-acrylonitrile copolymers is conducted using a catalytic system consisting of copper(I) bromide, tris[(2-pyridyl)methyl]amine as a ligand, and isopropylamine as an activating agent. Effects of activator concentration and monomer mixture composition on the mol.-weight characteristics of the (co)polymers are estimated It is shown that the products of synthesis may be used as depressor additives lowering the cloud point, pour point, and cold filter plugging point of diesel fuel. The experimental part of the paper was very detailed, including the reaction process 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”

Dadashi-Silab, Sajjad; Lorandi, Francesca; DiTucci, Matthew J.; Sun, Mingkang; Szczepaniak, Grzegorz; Liu, Tong; Matyjaszewski, Krzysztof published their research in Journal of the American Chemical Society in 2021. The article was titled 《Conjugated Cross-linked Phenothiazines as Green or Red Light Heterogeneous Photocatalysts for Copper-Catalyzed Atom Transfer Radical Polymerization》.Recommanded Product: 7789-45-9 The article contains the following contents:

Using the power of light to drive controlled radical polymerizations has provided significant advances in synthesis of well-defined polymers. Photoinduced atom transfer radical polymerization (ATRP) systems often employ UV light to regenerate copper activator species to mediate the polymerization Taking full advantage of long-wavelength visible light for ATRP would require developing appropriate photocatalytic systems that engage in photoinduced electron transfer processes with the ATRP components to generate activating species. Herein, we developed conjugated microporous polymers (CMP) as heterogeneous photocatalysts to exploit the power of visible light in promoting copper-catalyzed ATRP. The photocatalyst was designed by crosslinking phenothiazine (PTZ) as a photoactive core in the presence of dimethoxybenzene as a crosslinker via the Friedel-Crafts reaction. The resulting PTZ-CMP network showed photoactivity in the visible region due to the extended conjugation throughout the network because of the aromatic groups connecting the PTZ units. Therefore, photoinduced copper-catalyzed ATRP was performed with CMPs that regenerated activator species under green or red light irradiation to start the ATRP process. This resulted in efficient polymerization of acrylate and methacrylate monomers with high conversion and well-controlled mol. weight The heterogeneous nature of the photocatalyst enabled easy separation and efficient reusability in subsequent polymerizations The results came from multiple reactions, including the reaction of Cupric bromide(cas: 7789-45-9Recommanded Product: 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.Recommanded Product: 7789-45-9

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

《Metal-free ATRP catalyzed by visible light in continuous flow》 was written by El Achi, Nassim; Bakkour, Youssef; Adhami, Wissal; Molina, Julien; Penhoat, Mael; Azaroual, Nathalie; Chausset-Boissarie, Laetitia; Rolando, Christian. Recommanded Product: 7789-45-9 And the article was included in Frontiers in Chemistry (Lausanne, Switzerland) in 2020. The article conveys some information:

ATRP of Me methacrylate catalyzed by Eosin Y, an inexpensive and an environmental benign dye, was performed in a continuous flow reactor made of FEP tubing and irradiated by visible light green LEDs. The reaction under flow conditions was significantly more rapid and controlled compared to that in batch giving 90% of polymerization after only 3 h of irradiation The formed polymers in flow have Mn measured by GPC and DOSY NMR in accordance with the theor. values and show low dispersities (ETH < 1.5). The livingness of the polymers has been confirmed by LED on and LED off experiments and by the synthesis of block copolymers. The protocol described herein serves as a ""proof of concept"" of using Eosin Y as a photocatalyst for controlled polymerization and of using 1D and 2D NMR for polymer characterization. The protocol could be replicated in the future for other reversible-deactivation radical polymerizations The experimental part of the paper was very detailed, including the reaction process of Cupric bromide(cas: 7789-45-9Recommanded Product: 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.Recommanded Product: 7789-45-9

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

In 2019,Chemical Communications (Cambridge, United Kingdom) included an article by Cao, Dong; Cheng, Daojian. Quality Control of Bis(acetylacetone)copper. The article was titled 《One-pot synthesis of copper-nickel sulfide nanowires for overall water splitting in alkaline media》. The information in the text is summarized as follows:

Herein, one dimensional copper-nickel sulfide nanowires (NWs) were, for the first time, synthesized by using an accurate one-pot multi-step wet chem. strategy. The obtained copper-nickel sulfide NW electrocatalysts exhibit superb performance for both the hydrogen evolution reaction and oxygen evolution reaction, which is mainly due to the active centers Cu2S, NiS and Ni3S2. In the part of experimental materials, we found many familiar compounds, such as Bis(acetylacetone)copper(cas: 13395-16-9Quality Control of Bis(acetylacetone)copper)

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. Quality Control of Bis(acetylacetone)copper

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