copper related catalyst

Construction of Nitronyl Nitroxide-Based 3d-4f Clusters: Structure and Magnetism was written by Wang, Xiu-Feng;Hu, Peng;Li, Yun-Gai;Li, Li-Cun. And the article was included in Chemistry – An Asian Journal in 2015.Quality Control of copper(ii)hexafluor-2,4-pentanedionate This article mentions the following:

Three unprecedented nitronyl nitroxide radical-bridged 3d-4f clusters, [Ln₂Cu₂(hfac)₁₀(NIT-3py)₂(H₂O)₂] (Ln^III = Y, Gd, Dy), were obtained from the self-assembly of Ln(hfac)₃, Cu(hfac)₂, and the radical ligand. The Dy complex shows a slow relaxation of magnetization, representing the first nitronyl nitroxide radical-based 3d-4f cluster with single-mol. magnet behavior. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Quality Control of copper(ii)hexafluor-2,4-pentanedionate).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to low toxicity and inexpensive, earth-abundant. Copper nanoparticles can catalyze the Ullmann coupling reaction in a wide range of applications.Quality Control of copper(ii)hexafluor-2,4-pentanedionate

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

Rhodium(III)-Catalyzed Synthesis of Diverse Fluorescent Polycyclic Purinium Salts from 6-Arylpurine Nucleosides and Alkynes was written by Yang, Qi-Liang;Liu, Ying;Luo, Yi-Rui;Li, Zhi-Hao;Jia, Hong-Wei;Fu, Ya-Bo;Qu, Gui-Rong;Guo, Hai-Ming. And the article was included in Organic Letters in 2022.Recommanded Product: Copper(II) trifluoromethanesulfonate This article mentions the following:

Described herein is an efficient strategy for assembling a new library of functionalized polycyclic purinium salts with a wide range of anions through Rh^III-catalyzed C-H activation/annulation of 6-arylpurine nucleosides with alkynes under mild reaction conditions. The resulting products displayed tunable photo-luminescence covering most of the visible spectrum.nod cl. Mechanistic insights delineated the rhodium catalyst’s mode of action. A purino-isoquinolinium-coordinated rhodium(I) sandwich complex was well characterized and identified as the key intermediate. In the experiment, the researchers used many compounds, for example, Copper(II) trifluoromethanesulfonate (cas: 34946-82-2Recommanded Product: Copper(II) trifluoromethanesulfonate).

Copper(II) trifluoromethanesulfonate (cas: 34946-82-2) belongs to copper catalysts. The transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents has turned up as an exceedingly robust synthetic tool. Due to these characteristics, copper nanoparticles have generated a great deal of interest especially in the field of catalysis. Recommanded Product: Copper(II) trifluoromethanesulfonate

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

Cu(hfac)₂ Complexes with Acyclic Nitroxide Prone to Single-Crystal to Single-Crystal Transformation and Showing Mechanical Activity was written by Golomolzina, Irina;Tolstikov, Svyatoslav;Letyagin, Gleb;Romanenko, Galina;Bogomyakov, Artem S.;Ya. Akyeva, Anna;Syroeshkin, Mikhail A.;Egorov, Mikhail P.;Morozov, Vitaly;Ovcharenko, Victor. And the article was included in Crystal Growth & Design in 2022.Reference of 14781-45-4 This article mentions the following:

The heterospin solid phases of the chain polymer [Cu(hfac)₂L^Et]_∞ and bicyclic mol. [Cu(hfac)₂L^Et]₂-I (L^R = pyrazolyl-substituted tert-butylnitroxide; 1-R-5-(tert-butyl-oxylamino)pyrazole, R = Et, Pr) were found to undergo spontaneous transformation into the bicyclic mol. [Cu(hfac)₂L^Et]₂-II. The single-crystal to single-crystal (SC-SC) transformation of [Cu(hfac)₂L^Et]₂-I into [Cu(hfac)₂L^Et]₂-II was recorded by X-ray diffraction anal. of the crystal as a function of time. At 255-277 K, the [Cu(hfac)₂L^Et]₂-I → [Cu(hfac)₂L^Et]₂-II SC-SC transformation proceeded for 12-18 h. The [Cu(hfac)₂L^Et]_∞ → [Cu(hfac)₂L^Et]₂-II SC-SC phase transformation was accompanied by a change in the crystal shape, spontaneous mech. displacements of crystals, and a change in color from orange to dark green. This process started, to a certain extent, already in the crystals lying under the layer of the mother solution After the crystals were separated from the solution, the SC-SC transformation [Cu(hfac)₂L^Et]_∞ → [Cu(hfac)₂L^Et]₂-II occurred completely within 4 h at room temperature Under normal conditions, [Cu(hfac)₂L^Pr]₂-I also undergoes transformation into [Cu(hfac)₂L^Pr]₂-II. At the macro level, the transformation [Cu(hfac)₂L^Pr]₂-I → [Cu(hfac)₂L^Pr]₂-II is accompanied by spontaneous fragmentation of crystals, visualized as a scatter of small particles of the formed phase in different directions. The reverse transformation [Cu(hfac)₂L^Pr]₂-II → [Cu(hfac)₂L^Pr]₂-I occurs when [Cu(hfac)₂L^Pr]₂-II is cooled below 225 K. When [Cu(hfac)₂L^Pr]₂-II was heated above 300 K, the irreversible SC-SC phase transformation [Cu(hfac)₂L^Pr]₂-II → [Cu(hfac)₂L^Pr]_∞ was observed, which caused a pronounced change in the color of the crystals from dark green to orange. Heat treatment of the [Cu(hfac)₂L^Pr]_∞ single crystal at 303 K on a diffractometer for 1 day or more caused partial melting of the starting crystal, disappearance of X-ray diffraction reflections from the sample under study, and appearance of reflections corresponding to the formation of the new polymer complex [Cu(hfac)₂L^*Pr]_∞, where L^*Pr is the product of transformation of the radical including the oxidation of L^Pr and migration of the nitroxide O atom to the heterocycle, leading to the formation of 5-(tert-butylimino)-1-propyl-1,5-dihydro-4H-pyrazol-4-one (L^*Pr). The results of the X-ray diffraction study of the phase transformations completely agreed with the data of magnetochem. measurements for the complexes. Having replaced the acyclic nitroxides L^Et and L^Pr by their diamagnetic structural analogs L^PEt (2,2-dimethyl-1-(1-ethyl-1H-pyrazol-5-yl)propan-1-one) and L^PPr (2,2-dimethyl-1-(1-propyl-1H-pyrazol-5-yl)propan-1-one), we obtained the complexes [Cu(hfac)₂L^PEt]_∞, [Cu(hfac)₂(L^PPr)₂], and [(Cu(hfac)₂)₃(L^PPr)₂], for which the transformations are absolutely not characteristic. It was also found that polymorphic transformations are also uncharacteristic of complexes of other metals with the acyclic nitroxides under study ([Zn(hfac)₂L^Et]₂, [Zn(hfac)₂L^Pr]₂, [Mn(hfac)₂L^Et]₂). Thus, it was shown that the presence of both the Cu(II) ion and coordinated O-N group of acyclic nitroxide in the solid phase are favorable conditions for the emergence of stereochem. nonrigidity and multiple phase transformations in the compounds of Cu(hfac)₂ with acyclic nitroxides. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Reference of 14781-45-4).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to the earth-abundant, inexpensive and low toxicity. Copper of different valence states can be used to catalyze the coupling reaction, especially the Ullmann coupling reaction. Reference of 14781-45-4

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

A reaction-dissolution strategy for designing solid electrolyte interphases with stable energetics for lithium metal anodes was written by Biswal, Prayag;Rodrigues, Joshua;Kludze, Atsu;Deng, Yue;Zhao, Qing;Yin, Jiefu;Archer, Lynden A.. And the article was included in Cell Reports Physical Science in 2022.Recommanded Product: 34946-82-2 This article mentions the following:

The spatial variations in chem. composition and transport properties of the interphase formed on reactive metal electrodeposits dictate the stability and reversibility of electrochem. cells that use reactive metals as anodes. Here we report on the influence of carbonate and fluorinated electrolytes infused with ethers as additives on the phys.-chem. characteristics and reversibility of metallic lithium (Li) during early stages of electrodeposition and later stages of deep cycling of Li metal anodes. We show that a feasible strategy for achieving and sustaining kinetically enhanced interphases through the cycle life of Li electrodeposits is by simultaneous use of sacrificial electrolyte components that undergo electroreduction to enrich the interphase with fluorinated species in tandem with cleaning electrolyte components that promote dissolution and removal of less desirable carbonaceous compounds We demonstrate that this approach translates to high electrochem. reversibility during deep cycling of the Li metal anode and improved performance of Li metal batteries. In the experiment, the researchers used many compounds, for example, Copper(II) trifluoromethanesulfonate (cas: 34946-82-2Recommanded Product: 34946-82-2).

Copper(II) trifluoromethanesulfonate (cas: 34946-82-2) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to the earth-abundant, low toxicity and inexpensive. These ligands enable the reaction promoted in mild condition. The reaction scope has also been greatly expanded, rendering this copper-based cross-coupling attractive for both academia and industry. Recommanded Product: 34946-82-2

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

Diastereo- and Enantioselective Inverse-Electron-Demand Diels-Alder Cycloaddition between 2-Pyrones and Acyclic Enol Ethers was written by Huang, Guanghao;Guillot, Regis;Kouklovsky, Cyrille;Maryasin, Boris;de la Torre, Aurelien. And the article was included in Angewandte Chemie, International Edition in 2022.Related Products of 34946-82-2 This article mentions the following:

A broadly applicable diastereo- and enantioselective inverse-electron-demand Diels-Alder reaction of 2-pyrones and acyclic enol ethers was reported herein. Using a copper(II)-BOX catalytic system, bridged bicyclic lactones were obtained in very high yields (up to 99% yield) and enantioselectivities (up to 99% ee) from diversely substituted 2-pyrones and acyclic enol ethers. Mechanistic experiments as well as DFT calculations indicated the occurrence of a stepwise mechanism. The synthetic potential of the bridged bicyclic lactones was showcased by the enantioselective synthesis of polyfunctional cyclohexenes and cyclohexadienes, as well as a carbasugar unit. In the experiment, the researchers used many compounds, for example, Copper(II) trifluoromethanesulfonate (cas: 34946-82-2Related Products of 34946-82-2).

Copper(II) trifluoromethanesulfonate (cas: 34946-82-2) belongs to copper catalysts. The transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents has turned up as an exceedingly robust synthetic tool. The copper-mediated C-C, C-O, C-N, and C-S bond formation is a part of one oldest reaction, emphasizing the Ullmann cross-coupling reaction.Related Products of 34946-82-2

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

Remote Functionalization of 8-Substituted Quinolines with para-Quinone Methides: Access to Unsymmetrical Tri(hetero)arylmethanes was written by Burra, Amarender G.;Uredi, Dilipkumar;Motati, Damoder R.;Fronczek, Frank R.;Watkins, E. Blake. And the article was included in European Journal of Organic Chemistry in 2022.Electric Literature of C2CuF6O6S2 This article mentions the following:

A C(5)-H remote functionalization of para-quinone methides I (R = Me, tert-Bu, phenyl; Ar = C(O)₂Et, Ph, 2-pyrenyl, etc.) with 8-aminoquinoline derivatives, II (R¹ = acetyl, benzyl, (4-methylbenzene)sulfonyl, etc.; R² = H, benzyl; R³ = H, Br; R⁴ = H, OMe) affording direct access to unsym. tri(hetero)arylmethanes III in 69-96% yield is described. This method provides diverse tri(hetero)arylmethanes III with a broad scope and in a regioselective manner. The transformation works well with electron-rich and electron-deficient substrates. In the experiment, the researchers used many compounds, for example, Copper(II) trifluoromethanesulfonate (cas: 34946-82-2Electric Literature of C2CuF6O6S2).

Copper(II) trifluoromethanesulfonate (cas: 34946-82-2) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to the earth-abundant, inexpensive and low toxicity. Copper nanoparticles can also catalyze the coupling reaction of nitrogen-containing nucleophiles, phenols, thiols, xanthogenates, selenium ruthenium nucleophiles and the like.Electric Literature of C2CuF6O6S2

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

Thermal and photoinduced electron transfer reactions of phthalocyanine complexes of Zn(II) and Cu(II) in acetonitrile was written by Okawa, Yui;Endo, Kousuke;Hakamata, Yukihiko;Watanabe, Shingo;Yokoyama, Aika;Sugimori, Tamotsu;Takagi, Hideo D.;Inamo, Masahiko. And the article was included in Dalton Transactions in 2022.Reference of 34946-82-2 This article mentions the following:

Phthalocyanine that has four peripheral 2-methoxyphenyl substituents at the α-position and its Zn(II) and Cu(II) complexes were synthesized. Chem. oxidation by the Cu(II) ion and electrochem. oxidation of these metal complexes were studied spectrophotometrically in acetonitrile. The UV-visible absorption spectra of these metal complexes and their one-electron oxidized π-cation radicals showed no concentration dependence, indicating that these species exist as monomers in solution Kinetics of the thermal electron transfer reaction from each phthalocyanine complex to Cu²⁺ and the photoinduced electron transfer reaction of the Zn(II) phthalocyanine complex with V(V) and V(IV) Schiff base complexes were studied using conventional spectrophotometric and transient absorption techniques, and the electron transfer rate constants were analyzed using the Marcus cross relation. The obtained rate constants of the electron self-exchange reaction between the parent phthalocyanine complexes and their π-cation radicals were in the order of 10⁹ to 10¹¹ M^-1s^-1 at T = 298.2 K. These large electron self-exchange rate constants are consistent with the phthalocyanine-centered redox reactions where small reorganization energies are required with little structural change during the electron transfer process. In the experiment, the researchers used many compounds, for example, Copper(II) trifluoromethanesulfonate (cas: 34946-82-2Reference of 34946-82-2).

Copper(II) trifluoromethanesulfonate (cas: 34946-82-2) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to the earth-abundant, inexpensive and low toxicity. Copper of different valence states can be used to catalyze the coupling reaction, especially the Ullmann coupling reaction. Reference of 34946-82-2

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

Hybrid Quinoline Telluroether Ligand Derived Copper and Silver Complexes: Synthesis, Structural and Electronic Properties was written by Raju, Saravanan;Singh, Harkesh B.;Kumar, Sangit. And the article was included in European Journal of Inorganic Chemistry in 2022.Reference of 34946-82-2 This article mentions the following:

The tetradentate organotelluroether (C₉H₆NTe)₂CH₂ ligand was synthesized and its coordination behavior with a stoichiometric amount of Cu(II) and Ag(I) perchlorate and triflate salts was exptl. studied. The isolated ligand and metal complexes were characterized by multinuclear (¹H, ¹³C, ¹²⁵Te) NMR spectroscopy, single crystal x-ray diffraction, and DFT calculations The x-ray anal. revealed the formation of self-assembled bimetallic complexes with the mol. formula of 2[M(C₉H₆NTe)₂CH₂]⁺ X^– [M⁺ = Cu, Ag; X^– = ClO₄, CF₃SO₃]. Further, it was noticed that the metal ions act as a bridging unit to form cationic 8-membered metallamacrocycles in the chair conformation. The atoms in mol. (AIM) and noncovalent interactions (NCI) anal. display a weak intramol. Te···Te interaction. Natural bond orbital (NBO) calculations suggest that the Te has a rich electron donating ability toward metal ions than the quinoline N in the complexes. In the experiment, the researchers used many compounds, for example, Copper(II) trifluoromethanesulfonate (cas: 34946-82-2Reference of 34946-82-2).

Copper(II) trifluoromethanesulfonate (cas: 34946-82-2) belongs to copper catalysts. Copper catalyst has received great attention owing to the low toxicity and low cost. It is clear from the impact copper catalysis has had on organic synthesis that copper should be considered a first line catalyst for many organic reactions.Reference of 34946-82-2

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

A heterospin pressure sensor was written by Maryunina, Kseniya Yu.;Zhang, Xiao;Nishihara, Sadafumi;Inoue, Katsuya;Morozov, Vitaly A.;Romanenko, Galina V.;Ovcharenko, Victor I.. And the article was included in Journal of Materials Chemistry C: Materials for Optical and Electronic Devices in 2015.Related Products of 14781-45-4 This article mentions the following:

The effect of external pressure on the magnetic properties was studied for the 1st time for heterospin crystals based on the Cu(II) complex with nitroxide [Cu(hfac)₂NN-PzMe], which exhibits a spin-crossover-like phenomenon. An increase in the hydrostatic pressure to 0.14 GPa caused a significant shift of the magnetic anomaly temperature (from 150 K to 300 K). This complex actually functions as a highly sensitive external pressure sensor. Crystallog. data are given. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Related Products of 14781-45-4).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to low toxicity and inexpensive, earth-abundant. The copper-mediated C-C, C-O, C-N, and C-S bond formation is a part of one oldest reaction, emphasizing the Ullmann cross-coupling reaction.Related Products of 14781-45-4

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

Synthesis, structural characterization and electrochemical and magnetic studies of M(hfac)₂ (M = Cu^II, Co^II) and Nd(hfac)₃ complexes of 4-amino-TEMPO was written by Navarro, Yolanda;Guedes, Guilherme P.;Cano, Joan;Ocon, Pilar;Iglesias, Maria Jose;Lloret, Francisco;Lopez-Ortiz, Fernando. And the article was included in Dalton Transactions in 2020.Computed Properties of C10H2CuF12O4 This article mentions the following:

Three mononuclear complexes [M(hfac)_x(ATEMPO)_y], where M = Cu(11) and Co(12), x = y = 2; M = Nd (13), x = 4, y = 1, and two polynuclear complexes [{Cu(hfac)₂(ATEMPO)}_n], where n = 2 (14) and 4 (15), were obtained by the reaction of M(hfac)_x (M = Cu^II, Co^II, Nd^III; x = 2, 3) with 4-amino-TEMPO (4-amino-2,2,6,6-tetramethylpiperidin-N-oxyl) in good yields and their structural, electrochem. and magnetic properties were examined In all cases, the radical is coordinated to the metal through the amino group, except 15, and the metal ions have an octahedral geometry, except 13. Different coordination architectures of the copper complexes were obtained as a function of the stoichiometry and solvents used. In complexes 11 and 12 the radicals show an equatorial-equatorial and axial-equatorial arrangement, resp., giving rise to two distinct 2D supramol. systems through intermol. interactions. Compound 13 is the first example of a lanthanide complex of the ATEMPO radical. The Nd^III ion adopts a rare nine-coordination via binding to four hfac ligands and the radical. The dinuclear complex 14 shows a (Cu-O)₂ core in which the Cu^II ions are bridged by the oxygen atoms from the hfac ligands. In compound 15 the ATEMPO radical acts as a bidentate ligand through the amino and nitroxyl groups leading to an unprecedented tetranuclear square-shaped framework. Cyclic voltammetry showed redox processes associated with the copper and TEMPO moieties. Electrochem. impedance spectroscopy revealed the temperature dependence of the conductivity for compound 15 with a maximum of 2.09 x 10^-5 S cm^-1 at 408 K. The magnetic behavior of complexes 11–15 is determined by metal-radical interactions. Ferromagnetic interaction was observed for complex 11 due to the existence of two different exchange pathways arising from the conformational arrangement of the radicals around the metal center, whereas the single conformation of the radical in complex 14 resulted in a weak antiferromagnetic coupling. In complex 15 both O-Cu and N-Cu contacts are present giving rise to ferromagnetic and antiferromagnetic interactions, resp. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Computed Properties of C10H2CuF12O4).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. Copper catalyst has received great attention owing to the low toxicity and low cost. Copper nanoparticles can also catalyze the coupling reaction of nitrogen-containing nucleophiles, phenols, thiols, xanthogenates, selenium ruthenium nucleophiles and the like.Computed Properties of C10H2CuF12O4

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