Tag: M.W:100-200

COA of Formula: CCuNS, Name is Cuprous thiocyanate, belongs to copper-catalyst compound, is a common compound. COA of Formula: CCuNSIn an article, authors is Lu, Wenkui, once mentioned the new application about COA of Formula: CCuNS.

We report an efficient approach for the direct synthesis of alkenylboronates using copper catalysis. The Cu/TEMPO catalyst system (where TEMPO = (2,2,6,6-tetramethylpiperidin-1-yl)oxyl) exhibits both excellent reactivity and selectivity for the synthesis of alkenylboronates, starting from inexpensive and abundant alkenes and pinacol diboron. This approach allows for the direct functionalization of both aromatic and aliphatic terminal alkenes. Mechanistic experiments suggest that the alkenylboronates arise from oxyboration intermediates.

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Reference：
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 Chakkaradhari, Gomathy, 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.

The series of chelating phosphine ligands, which contain bidentate P2 (bis[(2-diphenylphosphino)phenyl] ether, DPEphos; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene, Xantphos; 1,2-bis(diphenylphosphino)benzene, dppb), tridentate P3 (bis(2-diphenylphosphinophenyl)phenylphosphine), and tetradentate P4 (tris(2-diphenylphosphino)phenylphosphine) ligands, was used for the preparation of the corresponding dinuclear [M(mu2-SCN)P2]2 (M = Cu, 1, 3, 5; M = Ag, 2, 4, 6) and mononuclear [CuNCS(P3/P4)] (7, 9) and [AgSCN(P3/P4)] (8, 10) complexes. The reactions of P4 with silver salts in a 1:2 molar ratio produce tetranuclear clusters [Ag2(mu3-SCN)(t-SCN)(P4)]2 (11) and [Ag2(mu3-SCN)(P4)]22+ (12). Complexes 7-11 bearing terminally coordinated SCN ligands were efficiently converted into derivatives 13-17 with the weakly coordinating -SCN:B(C6F5)3 isothiocyanatoborate ligand. Compounds 1 and 5-17 exhibit thermally activated delayed fluorescence (TADF) behavior in the solid state. The excited states of thiocyanate species are dominated by the ligand to ligand SCN ? pi(phosphine) charge transfer transitions mixed with a variable contribution of MLCT. The boronation of SCN groups changes the nature of both the S1 and T1 states to (L + M)LCT d,p(M, P) ? pi(phosphine). The localization of the excited states on the aromatic systems of the phosphine ligands determines a wide range of luminescence energies achieved for the title complexes (lambdaem varies from 448 nm for 1 to 630 nm for 10c). The emission of compounds 10 and 15, based on the P4 ligand, strongly depends on the solid-state packing (lambdaem = 505 and 625 nm for two crystalline forms of 15), which affects structural reorganizations accompanying the formation of electronically excited states.

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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, Application In Synthesis of Cuprous thiocyanate, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.Application In Synthesis of Cuprous thiocyanate, Name is Cuprous thiocyanate, molecular formula is CCuNS. In a article，once mentioned of Application In Synthesis of Cuprous thiocyanate

Reactions of (NH4)2MS4 or (NH4)MOS3 (M = Mo, W) with CuSCN and the closo carborane diphosphine 1,2-(PPh2)2-1,2-C2B10H10 in CH2Cl2 yielded five heterobimetallic trinuclear Mo(W)-Cu-S clusters with the formula Cu2MS4L2 (M = Mo(1), W(3), L = 1,2-(PPh2)2-1,2-C2B10H10), Cu2MoS4L2 · CH2Cl2 (2) and Cu2MOS3L2 (M = Mo(4),W(5)). All the clusters have been characterized by elemental analysis, FT-IR, UV/Visible, 1H and 13C NMR spectroscopy and X-ray structure determination. X-ray crystal structure analysis showed that the metal skeleton of these clusters could be classified into two types. With (NH4)2MS4 (M = Mo, W), the three metal atoms (two Cu atoms and one M atom (M = Mo, W)) are almost in a linear conformation, while with (NH4)2MOS3 the conformation of the heterobimetallic trinuclear cluster core was a butterfly-shaped (or referenced as defective cubane-like with two corners missing). The coordination sphere of the metal atoms in all the clusters, either for Cu or M, should be described as a distorted tetrahedron. For each cluster, the closo carborane diphosphine ligand 1,2-(PPh2)2-1,2-C2B10H10 was introduced into the Cu2MS4 or Cu2MOS3 cluster cores and coordinated bidentately through the P atoms to Cu(I), and this resulted in a stable five-member chelating ring between the bis-diphosphine ligand and the metal.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Application In Synthesis of Cuprous thiocyanate. 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”

 

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”

 

name: Copper(I) oxide, Name is Copper(I) oxide, belongs to copper-catalyst compound, is a common compound. name: Copper(I) oxideIn an article, authors is , once mentioned the new application about name: Copper(I) oxide.

Method of treating estrogen dependent cancers

A method for alleviating the symptoms of post-menopausal syndrome comprising administering to a woman in need thereof an effective amount of a compound of formula I STR1 wherein R1a is –H or –OR7a in which R7a is –H or a hydroxy protecting group; R2a is –H, halo, or –OR8a in which R8a is –H or a hydroxy protecting group; R3 is 1-piperidinyl, 1-pyrrolidino, methyl-1-pyrrolidinyl, dimethyl-1-pyrrolidino, 4-morpholino, dimethylamino, diethylamino, diisopropylamino, or 1-hexamethyleneimino; n is 2 or 3; and Z is –O– or –S–; or a pharmaceutically acceptable salt thereof.

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