Category: 1111-67-7

Application of 1111-67-7, 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, 1111-67-7, molcular formula is CCuNS, introducing its new discovery.

Synthesis and Structural Studies of Coordination Position Isomers of Co(II) and Their Adducts with Some Lewis Bases

Coordination position isomers of the type (PPh3)2Co(NCS)2Cu2(SCN)2 and Co(NCS)2(PPh3)2Cu2(SCN)2 and their adducts of the type (xL)Co(NCS)2(PPh3)2Cu2(SCN)2 have been synthesized and studied on the basis of elemental analyses, molar conductance, magnetic susceptibility measurements, infrared and electronic spectral studies.

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Reference：
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. 1111-67-7, Name is Cuprous thiocyanate, molecular formula is CCuNS. In a Article，once mentioned of 1111-67-7

Nanostructured Silicon-Based Heterojunction Solar Cells with Double Hole-Transporting Layers

Hybrid nanostructured silicon?organic solar cells have been pursued as a low-cost solution for silicon photovoltaic devices. However, it is difficult for the organic semiconductor, typically poly(3,4-ethylenedioxythiophene):polystyrene (PEDOT:PSS), to fully cover the nanostructured silicon surface due to the high surface tension of the polymer solution and the small size of the cavities in nanostructured silicon. As a result, the performance of the hybrid solar cells is limited by the defect-induced surface recombination and poor hole extraction. In this work, an inorganic hole-transporting layer, copper(I) thiocyanate (CuSCN), is introduced between silicon nanowire (SiNW) and PEDOT:PSS to improve the junction quality. The effect of CuSCN on as-fabricated SiNW and tetramethylammonium hydroxide (TMAH)-treated SiNW structures is examined, and it is shown that in both cases CuSCN can well cover the SiNW surface due to the easy penetration of its solution into the silicon nanostructure. As a result, the power conversion efficiency of the solar cells has been dramatically improved from 7.68% to 10.5% for as-fabricated SiNW-based-hybrid cells, and from 10.75% to 12.24% for TMAH-passivated SiNW-based-hybrid cells, suggesting that the double hole-transporting layer approach can effectively improve the junction quality in hybrid organic-nanostructured silicon-based devices.

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

 

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Electrodeposition of CuSCN seed layers and nanowires: A microelectrogravimetric approach

This paper analyzes the microelectrogravimetric aspects of CuSCN electrochemical deposition. Samples were prepared under conditions typically used during the first preparation step of the increasingly developed inverted photovoltaic cells, i.e., an approach based on the deposition of a hole transporting layer (p-type semiconductor) as a starting film. Here, both CuSCN seed layers and nanowires are the result of an electrodepositon process that uses electrolytes rich in Cu(II) species, thiocyanate ions and additives such as triethanolamine (TEA) or ethylenediaminetetraacetic acid (EDTA). Gold (Au) reactivity was compared to that of Indium Tin Oxide (ITO) coated quartz electrodes in the presence of aqueous thiocyanate ions. Consequently, ITO was confirmed as a suitable substrate for microelectrogravimetric purposes under conditions in which gold becomes electrochemically corroded. Both the speciation and the solubility diagrams for Cu(II) were prepared considering the presence of either TEA or EDTA as additives to establish the possible electroactive species involved in the electrochemical formation of CuSCN and its solubility as it grows. Following a potentiodynamic study and regardless of the additive used, it can be stated that CuSCN is accumulated on the electrode and is then reoxidized. The latter is accompanied by an almost complete loss of the previously accumulated mass. During the elapsed time of the experiments, two Cu(II) insoluble species, namely Cu(SCN)TEA and Cu(SCN)2, were stabilized as colloids in the employed electrolytes. These colloids can also participate as electroactive species in the CuSCN electroformation. However, for a better interpretation of results, more complete speciation diagrams are also required, but thermodynamic information on these species is still not available. During both potentiostatic and galvanostatic CuSCN growth, a CuSCN solubility effect may explain the slightly low faradaic efficiency of this process.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 1111-67-7

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

 

Related Products of 1111-67-7, 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, 1111-67-7, Cuprous thiocyanate, introducing its new discovery.

METAL-BASED HYDROGEN SULFIDE SCAVENGER AND METHOD OF PREPARING SAME

The present disclosure is related to a family of oil-based dispersions of organic and inorganic metal compounds for use as a hydrogen sulfide scavenger in asphalt, and the preparation thereof. These dispersions comprise organic and inorganic metal compounds, organic solvents, an organoclay suspension agent, an emulsifier and optionally a polymeric stabilizer. The organic and inorganic metal compounds are in the form of micron-sized particles. Copper-based dispersions are particularly effective at reducing the hydrogen sulfide emission of asphalt in the presence of polyphosphoric acid.

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

 

Because a catalyst decreases the height of the energy barrier, name: Cuprous thiocyanate, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.name: Cuprous thiocyanate, Name is Cuprous thiocyanate, molecular formula is CCuNS. In a article，once mentioned of name: Cuprous thiocyanate

Structural chemistry of thiocyanatometallates. Crystal structures of Ph4PCu(SCN)2 and (PPN)Cu(SCN)2

Colourless columnar crystals of Ph4PCu(SCN)2 (1) were obtained by reaction of CuSCN with Ph4PSCN in acetone. 1 crystallises in the orthorhombic space group P212121 with a = 746.50(10); b = 1623.8(3); c = 1999.4(4) pm; Z = 4; V = 2423.6(7) · 106 pm3. Colourless lamella shaped crystals of (PPN)Cu(SCN)2 (2) were formed by reactions of (PPN)CuCl2 with KSCN in ethanol. 2 crystallises in the triclinic space group P1 with a = 1101.3(2); b = 1141.6(2); c = 1522.9(3) pm; alpha = 74.75(3); beta = 80.50(3); gamma = 70.74(3); Z = 2; V = 1737.4(6) · 106 pm3. In both compounds the anions consist of approximately planar groups with Cu atoms co-ordinated by two N and one S atom. In each case one SCN is a N-bound terminal group while the second SCN forms a 1,3-mu bridge between two Cu centres. In 1 the planar CuN2S units are connected to polymer anions with chain structure, whereas 2 contains dimeric anions [SCNCu(SCN)2CuNCS].

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Reference：
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

FILM

The object of the present invention is to provide a polydialkylsiloxane backbone containing film excellent in durability against hot water. The film of the present invention comprises a polydialkylsiloxane backbone, wherein the ratio of carbon atoms to silicon atoms (C/Si) is not less than 0.93 and less than 1.38 in terms of moles. In the film, the magnitude of a contact angle change ratio dW represented by a specific formula can be not less than ?10% provided that theta0 is an initial contact angle of water, and thetaW is a contact angle of water on the film immersed in ion-exchanged water of 70 C. for 24 hours.

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Reference：
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, Safety of Cuprous thiocyanate, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. Safety of Cuprous thiocyanate, Name is Cuprous thiocyanate, molecular formula is CCuNS. In a Article, authors is Ren, Zhi-Gang，once mentioned of Safety of Cuprous thiocyanate

Synthesis, crystal structures and third-order nonlinear optical properties of a new family of double incomplete cubane-like clusters [(eta5-C5Me5)2Mo 2(mu3-S)3SCu2X(mu-X)] 2(X = Cl-, Br-, SCN-) and cubane-like clusters […].

Reactions of trans-[(eta5-C5Me5)2Mo 2(mu-S)2S2] (1) with 2 equiv. of CuX (X = Cl-, Br-, SCN-, CN-) in refluxing acetonitrile resulted in a new set of Mo/Cu/S cluster compounds [(eta5-C5Me5)2Mo 2(mu3-S)3SCu2Cl(mu-Cl)] 2 (2), [(eta5-C5Me5)2Mo 2(mu3-S)4(CuBr)2] (3) and [(eta5-C5Me5)2Mo 2(mu3-S)3SCu2Br(mu-Br)] 2 (4), [(eta5-C5Me5)2Mo 2(mu3-S)4(CuSCN)2] (5) and [(eta5-C5Me5)2Mo 2(mu3-S)3SCu2(SCN)(mu-SCN)] 2 (6) and [(eta5-C5Me5)2Mo 2(mu3-S)4(CuCN)2] (7). Compounds 2-7 were fully characterized by elemental analysis, IR, UV-Vis, 1H NMR and single-crystal X-ray crystallography. Compounds 2, 4 and 6 consist of two incomplete cubane-like [(eta5-C5Me5)2Mo 2(mu3-S)3SCu2X] species bridged by a pair of mu-X- anions while 3, 5 and 7 contain a cubane-like [(eta5-C5Me5)2Mo 2(mu3-S)4Cu2] core with each of two terminal X- coordinated at each copper(I) center. The third-order nonlinear optical (NLO) properties of 2-5 and 7 along with [(eta5-C5Me5)2Mo 2(mu3-S)4(CuCl)2] in CH2Cl2 were investigated by using Z-scan technique at 532 nm. All these clusters showed strong third-order NLO absorption effects and self-defocusing properties.

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

 

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In situ solid state formation of copper(I) coordination polymers by thermal reduction of copper(II) precursor compounds: Structure and reactivity of [Cu(NCS)2(pyrimidine)2]n

Reaction of copper(II) thiocyanate with pyrimidine leads to the formation of the new ligand-rich 1:2 (1:2 = ratio metal salt to ligand) copper(II) compound [Cu(NCS)2(pyrimidine)2]n (1). Its crystal structure was determined by X-ray single crystal investigations. It consists of linear polymeric chains, in which the Cu2+ cations are mu-1,3 bridged by the thiocyanato anions. The pyrimidine ligands are terminal N-bonded to the Cu2+ cations, which are overall octahedrally coordinated by two pyrimidine ligands and two N-bonded as well as two S-bonded thiocyanato anions. Magnetic measurements were preformed yielding weak net ferromagnetic interactions between adjacent Cu2+ centers mediated by the long Cu-S distances and/or interchain effects. On heating compound 1 to approx. 160 C, two thirds of the ligands are discharged, leading to a new intermediate compound, which was identified as the ligand-deficient 2:1 copper(I) compound [(CuNCS)2(pyrimidine)]n by X-ray powder diffraction. Consequently, copper(II) was reduced in situ to copper(I) on heating, forming polythiocyanogen as byproduct. Elemental analysis and infrared spectroscopic investigations confirm this reaction pathway. Further investigations on other ligand-rich copper(II) thiocyanato compounds clearly show that this in situ thermal solid state reduction works in general. The Royal Society of Chemistry 2009.

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

 

Electric Literature of 1111-67-7, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.1111-67-7, Name is Cuprous thiocyanate, molecular formula is CCuNS. In a Conference Paper，once mentioned of 1111-67-7

Thiocyanate hydrometallurgy for the recovery of gold. Part I: Chemical and thermodynamic considerations

Thiocyanate has been identified and studied as a promising alternative lixiviant for gold in acidic solutions. Eh-pH and ion species distribution diagrams for SCN-H2O, Au-SCN-H2O, Ag-SCN-H2O, Cu-SCN-H2O, and Fe-SCN-H2O systems were constructed to predict the behavior of each metal ion in the thiocyanate system and also to explain the experimental results. Thermodynamic analyses suggest that gold can be leached by thiocyanate under appropriate leaching potentials, forming aurous or auric complexes with thiocyanate, depending on the thiocyanate concentration and leaching potential. According to species distribution diagrams, silver (I) and copper (I) form insoluble salts at moderate thiocyanate concentrations and are soluble at low and high thiocyanate concentrations. Ferric ion forms a series of complexes with thiocyanate. The study of the ferric ion effect indicates that gold can be leached in acid thiocyanate solution with ferric sulfate as the oxidant. Also the presence of excess ferric ion reduces the apparent thiocyanate activity for copper (I) and silver (I) dissolution. The findings of this thermodynamic assessment are useful in the analysis of some of the phenomena encountered in the leaching and recovery of gold from thiocyanate solutions as discussed in subsequent papers.

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

 

Reference of 1111-67-7, 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, 1111-67-7, molcular formula is CCuNS, introducing its new discovery.

Mass spectrometry of poly(methyl methacrylate) (PMMA) prepared by atom transfer radical polymerization (ATRP)

Poly(methyl methacrylate) (PMMA) was synthesized via atom transfer radical polymerization (ATRP). As a catalyst copper(I)thiocyanate (CuSCN) was used with N-n-pentyl-2-pyridylmethanimine as a ligand. Infrared spectroscopy and matrix assisted laser desorption ionization time-of-flight mass spectrometry were used to characterize the synthesized polymers. From this it was clear that at least to some extent thiocyanate was present as end groups of the PMMA chains. This observation is discussed in view of a phenomenon called halogen exchange, which has been reported before for bromine/chlorine exchange in ATRP.

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