Category: 13395-16-9

Related Products of 13395-16-9, Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Article, and a compound is mentioned, 13395-16-9, Bis(acetylacetone)copper, introducing its new discovery.

Fura-2FF-based calcium indicator for protein labeling

We describe the synthesis and fluorescence properties of a Fura-2FF-based fluorescent Ca2+ indicator that can be covalently linked to SNAP-tag fusion proteins and retains its Ca2+ sensing ability after coupling to protein. The Royal Society of Chemistry 2010.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Related Products of 13395-16-9. In my other articles, you can also check out more blogs about 13395-16-9

Reference£º
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

Related Products of 13395-16-9, Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps.In a article, 13395-16-9, molcular formula is C10H16CuO4, introducing its new discovery.

Versatility of the nature of the magnetic Cu(II)-U(IV) interaction. Syntheses, crystal structures and magnetic properties of Cu2U and CuU compounds

Treatment of [M(H2Li)] with U(acac)4 in refluxing pyridine led to the formation of the trinuclear complexes [{MLi(py)x}2U] [L1 = N,N?-bis(3-hydroxysalicylidene)-2,2-dimethyl-1,3-propanediamine and M = Ni, Cu or Zn; L2 = N,N?-bis(3-hydroxysalicylidene)-1,3-propanediamine and M = Cu or Zn; L3 = N,N?-bis(3-hydroxysalicylidene)-2-methyl-1,2-propanediamine and M = Ni, Cu or Zn; x = 0 or 1]. The dinuclear compounds [ML3(py)U(acac)2] (M = Cu, Zn) were isolated from the reaction of [M(H2L3)] and U(acac)4 in pyridine at 60C. The crystal structures of the trinuclear complexes are built up by two orthogonal MLi(py)x units which are linked to the central uranium ion by the two pairs of oxygen atoms of the Schiff base ligand; the U(IV) ion is found in the same dodecahedral configuration but the Cu(II) ion coordination geometry and the Cu … U distance are different by passing from L1 or L2 to L3, due to the shortening of the diimino chain of L3. These geometrical parameters seem to have a great influence on the magnetic behaviour of the complexes since the Cu-U coupling in [{CuLi(py)x}2U] (i = 1, 2) is ferromagnetic while it is antiferromagnetic in [{CuL3(py)x}2U]. In the compounds [{CuL3(py)x}2U] and [CuL3(py)U(acac)2], the Cu coordination and the Cu … U distance are very similar, and both exhibit an antiferromagnetic interaction.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 13395-16-9 is helpful to your research. Related Products of 13395-16-9

Reference£º
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

Chemistry is traditionally divided into organic and inorganic chemistry. Formula: C10H16CuO4, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 13395-16-9

Copper catalyzed oxidative coupling of ortho-vinylanilines with N-tosylhydrazones: Efficient synthesis of polysubstituted quinoline derivatives

Efficient and general copper catalyzed oxidative cyclization of ortho-vinylaniline has been accomplished employing N-tosylhydrazone as coupling partner. Various substituted quinoline derivatives of biological importance were achieved in good to excellent yield. The important features are the high functional group tolerates, up-gradation to gram scale synthesis and possible one-pot synthesis of quinoline from corresponding carboxaldehyde. Synthetic potential of the obtained quinoline derivatives was demonstrated through C-H bond functionalization reaction. Furthermore, preliminary mechanistic investigation revealed the possible generation of non-stabilized diazo compound and imine derivative as potential intermediates as well as copper catalyzed electrocyclic reaction and oxidative aromatization.

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Reference£º
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

13395-16-9, Name is Bis(acetylacetone)copper, belongs to copper-catalyst compound, is a common compound. name: Bis(acetylacetone)copperIn an article, once mentioned the new application about 13395-16-9.

Copper(II)-mediated oxime-nitrile coupling in non-aqueous solutions: Synthetic, structural and magnetic studies of the copper(II)-salicylaldehyde oxime reaction system

The reactions of salicylaldehyde oxime (H2salox) with Cu II precursors yielded the known complexes [Cu(Hsalox)2] (1) and [Cu(Hsalox)2]n (2), as well as complexes [Cu 3(salox)(L1)(L2)]¡¤MeCN (3¡¤MeCN), [CuCl(L1)] (4) and [Cu2Na(O2CMe) 5(HO2CMe)]n (5), where L1 – = o-O-C6H4-CHNO-C(CH3)NH and L23- = o-O-C6H4-CHNO-C(o-O-C 6H4)N. L1- was formed in situ via the nucleophilic addition of the oximato O-atom of salox2- to the unsaturated nitrile group of the MeCN reaction solvent. L2 3- is also formed in situ probably through the nucleophilic attack of the oximato O-atom to the unsaturated nitrile group of salicylnitrile; the latter, although not directly added to the reaction mixture, can be produced via the dehydration of salox2-. Compounds 1 and 2 contain Hsalox – bound to the metal center in two different coordination modes; they both contain the same mononuclear unit, however a 2D network is generated in 2 due to a relatively long Cu-Ooximato bond. Compound 3 contains three different ligands, i.e. salox2-, L1- and L 23-, which act as mu3-kappa2O: kappaO?:kappaN, kappaO:kappaN:kappaN? and mu3-kappa2O:kappa2N:kappaO?: kappaN?, respectively, whereas 4 consists of a square planar Cu II atom bound to a kappaO:kappaN:kappaN? L 1- and a chloride ion. Compound 5 consists of dinuclear [Cu2(O2CMe)5(HO2CMe)]- units and Na+ ions assembled into an overall 3D network structure. Magnetic susceptibility measurements from polycrystalline samples of 2 and 5 gave best-fit parameters J = +0.36 cm-1 (H = -JS? iS?j) and J = -360 cm-1, zj = +20 cm -1 (H = -JS?iS?j – zJ?S z?S?z), respectively.

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Reference£º
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

Reference of 13395-16-9, Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Article, and a compound is mentioned, 13395-16-9, Bis(acetylacetone)copper, introducing its new discovery.

A 6pi + 6pi potentially antiaromatic zwitterion preferred to a quinoidal structure: Its reactivity toward organic and inorganic reagents

A straightforward synthesis of the zwitterionic benzoquinonemonoimine 8 is reported. This molecule is a rare example of a zwitterion being more stable than its canonical forms. It is shown that 8 is best described as constituted of two chemically connected but electronically not conjugated 6 pi electron subunits. Its reactivity with electrophiles such as H+, CH3+, and metal salts leads to the synthesis of new 12 pi electron molecules 12 (H +), 14 (CH3+), and 20 (pd2+), respectively, in which one or both 6 pi electron subsystems localize into an alternation of single and double bonds, as established by X-ray diffraction. The acidity of the N-H protons of 8 can be modulated by an external reagent. Dependent on the electrophile used, the control of the pi system delocalization becomes possible. When the electrophile simply adds to the zwitterion as in 12, 14, or 15, there is no more negative charge to be delocalized and only the positive charge remains delocalized between the nitrogen atoms. Furthermore, when a reaction with the electrophilic reagent results in deprotonation, as in 17-21, there remains no charge in the system to be delocalized. DFT calculations were performed on models of 8, 12, 14, 20, and on other related zwitterions 9 and 10 in order to examine the influence of the fused cycles on the charge separation and on the singlet-triplet energy gap. An effect of the nitrogen substituents in 8 is to significantly stabilize the singlet state. The dipole moment of 8 was measured to be 9.7 D in dichloromethane, in agreement with calculated values. The new ligands and complexes described in this article constitute new classes of compounds relevant to many areas of chemistry.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Reference of 13395-16-9. In my other articles, you can also check out more blogs about 13395-16-9

Reference£º
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 13395-16-9, name is Bis(acetylacetone)copper, introducing its new discovery. Recommanded Product: 13395-16-9

Complexation of tetraphenyltetrabenzoporphine with Cu(II), Cd(II), Zn(II), and Co(II) salts in organic solvents

The rate and activation parameters of tetraphenyltetrabenzoporphine (H 2TPTBP) complexation with 3d-metal acetates and acetylacetonates are shown to be determined by the solvent nature. With an increase in the electron-donor properties of a solvent, the reaction rate increases due to protonation of N-H bonds and decreases as MAm(Solv)n – m salt solvates become more stable. As the result, the rate of a reaction with ZnAc2 increases in the series: DMF < DMSO < Py < PrOH-1 < CH3CN < C6H6. In inert and weakly coordinating solvents, the transition state of a reaction is supposed to be formed according to the mechanism of contraction of the salt coordination sphere. The rate of H2TPTBP reaction with metal acetates in pyridine changes in the series: Cu(II) > Cd(II) > Zn(II) > Co(II), while the stability of the obtained complexes decreases in the series Cu(II) > Co(II) > Zn(II) > Cd(II). It is shown that the spectral criterion of the complex stability can be used in the series of metal complexes with one ligand, but it is violated if the ligand structure is changed.

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Reference£º
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

Chemistry can be defined as the study of matter and the changes it undergoes. 13395-16-9. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology.13395-16-9, Name is Bis(acetylacetone)copper, molecular formula is C10H16CuO4, introducing its new discovery.

Bridging homogeneous and heterogeneous catalysis with MOFs: Cu-MOFs as solid catalysts for three-component coupling and cyclization reactions for the synthesis of propargylamines, indoles and imidazopyridines

Copper-containing MOFs are found to be active, stable and reusable solid catalysts for three-component couplings of amines, aldehydes and alkynes to form the corresponding propargylamines. Two tandem reactions, including an additional cyclization step, leads to the effective production of indoles and imidazopyridines. In particular, the lamellar compound [Cu(BDC)] (BDC = benzene dicarboxylate) is highly efficient for the preparation of imidazopyridines, although a progressive structural change of the solid to a catalytically inactive compact structure is produced, causing deactivation of the catalyst. Nevertheless, the phase change can be reverted by refluxing in DMF, which recovers the original lamellar structure and the catalytic activity of the fresh material. The use of [Cu(BDC)] for this reaction also prevents the formation of Glaser/Hay condensation products of the alkyne, even when the reaction is performed in air atmosphere. This is a further advantage of [Cu(BDC)] with respect to other homogeneous copper catalysts, for which the use of an inert atmosphere is necessary.

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Reference£º
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

13395-16-9, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.13395-16-9, Name is Bis(acetylacetone)copper, molecular formula is C10H16CuO4. In a article£¬once mentioned of 13395-16-9

Photoelectron spectra of gamma-substituted nickel(II) and copper(II) bis(acetylacetonates)

The electronic structures of Ni(II) and Cu(II) bis(acetylacetonates) and some of their gamma-substituted analogues (X = Cl, Me) are studied by photoelectron spectroscopy (PES). The vertical ionization energies of the compounds are determined, and the spectra are interpreted based on the trends of changes in the electronic structure and photoelectron spectra of acetylacetonates upon gamma-substitution. The suggested interpretation of the photoelectron spectra is confirmed by the quantum chemical INDO calculations of the electronic structure of the Cu(II) compounds.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. 13395-16-9, In my other articles, you can also check out more blogs about 13395-16-9

Reference£º
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

13395-16-9, Name is Bis(acetylacetone)copper, belongs to copper-catalyst compound, is a common compound. 13395-16-9In an article, authors is Balkan, Timucin, once mentioned the new application about 13395-16-9.

One-pot synthesis of monodisperse copper?silver alloy nanoparticles and their composition-dependent electrocatalytic activity for oxygen reduction reaction

Development of an economical, well-defined and efficient electrocatalyst having a potential to replace Pt/C is crucial for oxygen reduction reaction (ORR). In this respect, we report herein one-pot wet-chemical protocol for the composition-controlled synthesis of monodisperse CuAg alloy nanoparticles (NPs) and their composition-dependent electrocatalytic activities in ORR for the first time under an alkaline condition. The presented synthetic procedure yields CuAg NPs that exhibit monodisperse size distribution with an average particle diameter of ?8 nm. Almost homogenous CuAg alloy formation is proved by using many advanced analytical techniques despite the considerable lattice mismatch between Cu and Ag. At all compositions investigated, the ORR activities of CuAg electrocatalysts are found to be significantly higher than monometallic Ag NPs. Improved ORR kinetics of CuAg alloy NPs are demonstrated by Tafel slopes (85 mV/dec for Cu30Ag70, 84 mV/dec for Cu40Ag60 and 78 mV/dec for Cu60Ag40 which are all smaller than that of monometallic Ag (113 mV/dec). Electrochemical impedance measurements support these findings and represent that charge transfer resistance strongly depends on composition of CuAg electrocatalyst. The ORR activity and surface analysis results put Cu40Ag60 forward since Cu oxidation is suppressed in Cu40Ag60 NPs, caused by Ag enhancement in the surface.

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Reference£º
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

13395-16-9, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn¡¯t involve a screen. 13395-16-9, C10H16CuO4. A document type is Article, introducing its new discovery.

Composition-controlled catalysis of reduced graphene oxide supported CuPd alloy nanoparticles in the hydrolytic dehydrogenation of ammonia borane

Addressed herein is the composition-controlled catalysis of CuPd alloy nanoparticles (NPs) supported on reduced graphene oxide (RGO) in the hydrolytic dehydrogenation of ammonia borane (AB). Nearly monodisperse CuPd alloy NPs were synthesized by using a surfactant-assisted organic solution phase protocol comprising the co-reduction of acetylacetonate complexes of Pd and Cu by morpholine borane complex in oleylamine and 1-octadecene at 80 C. The presented recipe allowed us to make a composition control over the CuPd alloy NPs. Three different compositions of CuPd alloy NPs (2.7 nm Cu30Pd70, 2.9 nm Cu48Pd52, 3.0 nm Cu75Pd25) could be prepared among which the Cu75Pd25 NPs showed the best catalytic performance in hydrogen generation from the hydrolysis of AB. Among the various support materials tested for as-prepared Cu75Pd25 alloy NPs, the RGO-Cu75Pd25 catalysts showed the highest performance in the hydrolysis of AB. Moreover, the activity of the RGO-Cu75Pd25 catalysts were dramatically enhanced by annealing them at 400 C for 1 h under Ar-H2 (5% H2) gas flow and an unprecedented TOF value of 29.9 min-1 was obtained in the hydrolysis of AB at room temperature. The reported TOF value here is much higher than RGO-Cu (TOF = 3.61 min-1) and even higher than RGO-Pd catalysts (TOF = 26.6 min-1). The detailed kinetics of RGO-Cu75Pd25 catalyzed AB hydrolysis was also studied depending on catalyst concentration, substrate concentration and temperature. The apparent activation energy of the catalytic hydrolysis of AB was calculated to be 45 ¡À 3 kJ mol-1.

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Reference£º
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”