Tag: M.W:100-200

Application of 1111-67-7, In an article, published in an article,authors is Ni, Yong, once mentioned the application of Application of 1111-67-7, Name is Cuprous thiocyanate,molecular formula is CCuNS, is a conventional compound. this article was the specific content is as follows.

Electrodeposition of p-type CuSCN thin films by a new aqueous electrolyte with triethanolamine chelation

A stable aqueous electrolyte solution containing Cu2+ and SCN- was prepared by adding triethanolamine (TEA, N(CH 2CH2OH)3) to chelate with Cu(II) cations. The electrolyte solutions were basic, with pH values in the range of 8.5-9, and could be used in the electrodeposition of CuSCN as a hole-conducting layer on a ZnO substrate and as an electron-conducting layer for nanocrystal photovoltaic cells because it could prevent the ZnO layer from acidic etching. CuSCN films were potentiostatically deposited on indium tin oxide glass substrates through the aqueous solutions, and the deposition potential for the sole CuSCN phase layer was determined by a linear sweep voltammetry measurement. The influence of applied potentials, electrolyte components, and deposition temperatures on the stoichiometry, phase, and particle morphology of the CuSCN films was investigated by X-ray photoelectron spectra, X-ray diffraction, and a field-emission scanning electron microscope. The results showed that the morphology of the dense CuSCN films was trigonal pyramid and the stoichiometric portions of SCN/Cu were excess of SCN. The current-voltage (I-V) characteristic of the junction between electrodeposited CuSCN and ZnO nanostructured layer displayed p-type semiconductor characteristics of CuSCN. The transmittance measurements detected high transmittance (?87%) in the visible wavelength range, and the direct transition band gap calculated was 3.88 eV.

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

 

Application of 1111-67-7, In an article, published in an article,authors is Trivedi, Manoj, once mentioned the application of Application of 1111-67-7, Name is Cuprous thiocyanate,molecular formula is CCuNS, is a conventional compound. this article was the specific content is as follows.

Synthesis, characterization, crystal structures and photophysical properties of copper(I) complexes containing 1,1?-bis(diphenylphosphino) ferrocene (B-dppf) in doubly-bridged mode

Five copper(I) complexes having general formula [Cu2(mu-X) 2(kappa2-P,P-B-dppf)2] (X = Cl(1), Br(2), I(3), CN(4), and SCN(5)) were prepared starting with CuX and B-dppf in 1:1 molar ratio in DCM-MeOH (50:50 V/V) at room temperature. The complexes have been characterized by elemental analyses, IR, 1H NMR, 31P NMR and electronic spectral studies. Molecular structures for 1, 2 and 4 were determined crystallographically. Complexes 1, 2 and 4 exist as centrosymmetric dimers in which the two copper atoms are bonded to two bridging B-dppf ligands and two bridging (pseudo-)halide groups in a mu-eta1 bonding mode to generate nearly planar Cu2(mu-eta1-X)2 framework. Both bridging B-dppf ligands are arranged in antiperiplanar staggered conformation in 1 and 2 (mean value 56.40-56.76), and twisted from the eclipsed conformation (mean value 78.19) in 4. The Phi angle value in 4 is relatively larger as compared to 1 and 2. This seems to indicate that the molecular core [Cu2(mu-eta1-X)2] in 4 is a sterically demanding system that forces the B-dppf ligand to adopt a relatively strained conformation in comparison to less strained system in 1 and 2. All the complexes exhibit moderately strong luminescence properties in the solution state at ambient temperature.

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

 

Reference of 1111-67-7, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. Reference of 1111-67-7, Name is Cuprous thiocyanate, molecular formula is CCuNS. In a Article, authors is Premalal£¬once mentioned of Reference of 1111-67-7

Preparation of structurally modified, conductivity enhanced-p-CuSCN and its application in dye-sensitized solid-state solar cells

A method is found to significantly improve the p-type conductivity of CuSCN modified by incorporating triethylamine coordinated Cu(II) sites in its structure. It is done by mixing triethylamine hydrothiocyanate with CuSCN in propyl sulfide solution and allowing it to stand still in the dark for a few weeks in a closed sample tube. XRD and SEM analyses point to the modification of the CuSCN material. The Hall effect measurements clearly show a significant enhancement of hole concentration and hence of p-type conductivity. A maximum conductivity of 1.42 S m?1 is achieved for the structurally modified CuSCN compared to that of 0.01 S m?1 for ordinary CuSCN. AC impedance analysis of solid-state dye-sensitized solar cells based on this material clearly shows the reduction of bulk resistance of the cell with the use of modified CuSCN. This decrease in resistance has been attributed to the enhancement of conductivity and better pore filing of modified CuSCN inside the TiO2 matrix. As such, the solar cell performance gradually increases to an optimum value beyond which it decreases. The best result obtained for conversion efficiency is 3.4% at AM 1.5, which is a 41.8% enhancement from the best reported value for a dye-sensitized solid-state solar cell using CuSCN as a hole conducting material. The best efficiency value obtained is 14 times higher than that obtained for the dye-sensitized solid-state solar cell made with ordinary CuSCN.

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

 

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Product Details of 1111-67-7, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. Product Details of 1111-67-7, Name is Cuprous thiocyanate, molecular formula is CCuNS. In a Chapter, authors is Kleoff£¬once mentioned of Product Details of 1111-67-7

Tetraheterosubstituted methanes with a carbon-halogen bond (update 2018)

In this chapter, recent methods for the preparation and elaboration of various substituted halomethanes are summarized. In addition to updates on classical methods, recently developed procedures employing new fluorinating agents, such as Togni’s reagents, are also presented. These methods are also put in the context of the synthesis of biologically active compounds.

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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, 1111-67-7, name is Cuprous thiocyanate, introducing its new discovery. name: Cuprous thiocyanate

Separation of propylene and propane by alkylimidazolium thiocyanate ionic liquids with Cu+ salt

Ionic liquids (ILs) coupled with Ag+ or Cu+ salts to form a new kind of reactive absorbent have been studied to separate light olefin from paraffin recently. In this work, we prepared two halogen-free alkylimidazolium thiocyanate ILs with cheaper cuprous thiocyanate, i.e., [Bmim]SCN-CuSCN and [Emim]SCN-CuSCN (Bmim, 1-butyl-3-methylimidazolium; Emim, 1-ethyl-3-methylimidazolium) and investigated their absorption capability for propylene, propane and mixture of both at 1-7 bar and 298-318 K. The effects of operating parameter including cation nature, temperature, pressure, Cu+ concentration and reuse of absorbent were investigated. Propylene shows a chemical absorption while propane does a physical one, and increasing Cu+ concentration effectively improves the absorption capability for propylene and the selectivity of propylene/propane. [Bmim]SCN-CuSCN has higher absorption capability and selectivity for propylene than [Emim]SCN-CuSCN, e.g., [Bmim]SCN-CuSCN-1.5 M can absorb 0.12 mol of propylene per liter while 0.012 mol of propane per liter at 1 bar and 298 K, with a selectivity of 10, which is comparable to some other ILs-Ag+ salts and better than pure ILs. Such absorbents can be regenerated through temperature and pressure swing without remarkable activity loss. This work shows that alkylimidazolium thiocyanate ILs with Cu+ salts are promising reactive absorbents to separate propylene from propane.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.name: Cuprous thiocyanate. In my other articles, you can also check out more blogs about 1111-67-7

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

 

An article , which mentions Formula: CCuNS, molecular formula is CCuNS. The compound – Cuprous thiocyanate played an important role in people’s production and life., Formula: CCuNS

A single-helix copper-containing coordination polymer of dihydroglyoxaline sulfide formed in situ through oxidation of 1,3-imidazolidine-2-thione

A novel single-stranded helix coordination polymer [Cu(L)(SO4)(H2O)] (L = dihydroglyoxaline sulfide) was synthesized and characterized by single-crystal X-ray diffraction, IR, and TGA analysis. The polymer is an unprecedented 1D helical polymer based on a sulfate bridge and a dihydroglyoxaline sulfide chelating ligand. Both ligands were formed in situ through copper-mediated oxidation of 1,3-imidazolidine-2-thione. The helical chain is interlocked with each other through strong hydrogen bonding interactions to form a 2D sheet, which then stacks together to generate a 3D hydrogen bonding network.

I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 1111-67-7, help many people in the next few years.Formula: CCuNS

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

 

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. HPLC of Formula: Cu2O. Introducing a new discovery about 1317-39-1, Name is Copper(I) oxide

N2O decomposition over CuO/CeO2catalyst: New insights into reaction mechanism and inhibiting action of H2O and NO by operando techniques

In this work, a combination of ex situ (STEM-EELS, STEM-EDX, H2-TPR and XPS), in situ (CO-DRIFTS) and operando (DR UV-vis and DRIFTS) approaches was used to probe the active sites and determine the mechanism of N2O decomposition over highly active 4 wt.% Cu/CeO2catalyst. In addition, reaction pathways of catalyst deactivation in the presence of NO and H2O were identified. The results of operando DR UV-vis spectroscopic tests suggest that [Cu-O-Cu]2+sites play a crucial role in catalytic N2O decomposition pathway. Due to exposure of {1 0 0} and {1 1 0} high-energy surface planes, nanorod-shaped CeO2support simultaneously exhibits enhancement of CuO/CeO2redox properties through the presence of Ce3+/Ce4+redox pair. Its dominant role of binuclear Cu+site regeneration through the recombination and desorption of molecular oxygen is accompanied by its minor active participation in direct N2O decomposition. NO and H2O have completely different inhibiting action on the N2O decomposition reaction. Water molecules strongly and dissociatively bind to oxygen vacancy sites of CeO2and block further oxygen transfer as well as regeneration of catalyst active sites. On the other hand, the effect of NO is expressed through competitive oxidation to NO2, which consumes labile oxygen from CeO2and decelerates [Cu+Cu+] active site regeneration.

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

 

Reference of 1317-39-1, 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 Patent, and a compound is mentioned, 1317-39-1, Copper(I) oxide, introducing its new discovery.

Tubulin binding agents and corresponding prodrug constructs

A diverse set of tubulin binding agents have been discovered which are structurally characterized, in a general sense, by a semi-rigid molecular framework capable of maintaining aryl-aryl, pseudo pi stacking distances appropriate for molecular recognition of tubulin. In phenolic or amino form, these ligands may be further functionalized to prepare phosphate esters, phosphate salts, phosphoramidates, and other prodrugs capable of demonstrating selective targeting and destruction of tumor cell vasculature.

But sometimes, even after several years of basic chemistry education, it is not easy to form a clear picture on how they govern reactivity! Read on for other articles about Reference of 189035-22-1!, Reference of 1317-39-1

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

 

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Quality Control of Cuprous thiocyanate, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. Quality Control of Cuprous thiocyanate, Name is Cuprous thiocyanate, molecular formula is CCuNS. In a Article, authors is Tang, Bo-Xiao£¬once mentioned of Quality Control of Cuprous thiocyanate

Electrophilic ipso-cyclization of N-(p-methoxyaryl)propiolamides involving an electrophile-exchange process

(Chemical Equation Presented) A novel electrophilic ipso-cyclization involving an electrophile-exchange process has been developed. In the presence of CuX (X = I, Br, SCN) and electrophilic fluoride reagents, a variety of N-(p-methoxyaryl)propiolamides and 4-methoxyphenyl 3-phenylpropiolate were cyclized to selectively afford the corresponding spiro[4.5]decenones in moderate to good yields. It is noteworthy that two azaquaternary tricyclic products were synthesized through a two-step pathway involving an electrophilic ipso-cyclization and then an intramolecular Heck reaction.

I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 1111-67-7, help many people in the next few years.Quality Control of Cuprous thiocyanate

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

 

1317-39-1, Name is Copper(I) oxide, belongs to copper-catalyst compound, is a common compound. Computed Properties of Cu2OIn an article, once mentioned the new application about 1317-39-1.

alpha-Chlorocarboxylic acids

alpha-CHLOROCARBOXYLIC ACIDS OF THE FORMULA STR1 wherein Y stands for a lower alkyl group having 1 to 6 carbon atoms or a phenyl group, a benzoyl group or a phenylalkyl group having 7 to 11 carbon atoms, which may have a lower alkyl group having 1 to 3 carbon atoms, a lower alkoxy group having 1 to 3 carbon atoms or a halogen on the phenyl rings as a substituent; R1 stands for a lower alkylene group having 1 to 4 carbon atoms or a valency bond; L stands for a lower alkyl group having 1 to 3 carbon atoms; and Z stands for a carboxyl group or a group convertible to carboxyl group, are useful as, for example, remedies for hyperlipemia, diabetes and so on of mammals including human beings.

We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 1317-39-1, and how the biochemistry of the body works.Computed Properties of Cu2O

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