Tag: M.W:100-200

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. Recommanded Product: Cuprous thiocyanate. Introducing a new discovery about 1111-67-7, Name is Cuprous thiocyanate

Inorganic Hole-Transporting Materials for Perovskite Solar Cells

In the last few years, inorganic?organic metal halide perovskite solar cells (PSCs) have attracted a great deal of attention as a promising next-generation solar-cell technology because of their high efficiencies and low production cost. Hole-transporting materials (HTMs) play an essential role in effective charge extraction and thus in achieving high overall efficiency. Therefore, searching for an efficient, stable, and low-cost HTM in PSCs has been one of the hottest research topics in this field. Inorganic p-type semiconductors that possess several appealing characteristics, such as suitable energy levels, high hole mobility, and high chemical stability, as well as low production cost, etc., are promising HTM candidate materials in PSCs. Here, specific attention is paid to the recent progress in inorganic HTMs being explored for PSCs. A variety of methods developed for the fabrication of these inorganic HTMs are summarized in detail, together with their corresponding performance in PSCs. Finally, an outlook on further enhancements of highly efficient PSCs based on inorganic HTMs is presented.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Recommanded Product: Cuprous thiocyanate, you can also check out more blogs about1111-67-7

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

 

1111-67-7, Name is Cuprous thiocyanate, belongs to copper-catalyst compound, is a common compound. Product Details of 1111-67-7In an article, once mentioned the new application about 1111-67-7.

Thermal decomposition of alkali metal, copper(I) and silver(I) thiocyanates

Thermal decomposition of alkali metal thiocyanates of the general formula MSCN (M=Na, K, Rb, Cs), CuSCN and AgSCN has been studied. Thermal analysis curves and diffraction patterns of the solid intermediate, and final, products of their pyrolysis are presented. Gaseous products of the decomposition, SO2 and CO2, were quantified. Thermal, X-ray and chemical analyses have been used to establish the nature of the reactions occurring at each stage of decomposition.

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

 

Related Products 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.

Three cation-templated Cu(i) self-assemblies: synthesis, structures, and photocatalytic properties

Three novel inorganic-organic supramolecular compounds based on cuprous halide/pseudohalides, named [MAPB][CuBr3] (1), [MAPB]2[Cu4I8] (2) and [(PAPB)Cu2(SCN)4]n (3), where MAPB = 1,3-bis(4-aminopyridiniummethyl)-benzene and PAPB = 1,4-bis(4-aminopyridiniummethyl)-benzene, have been synthesized based on a self-assembly reaction under ambient conditions. The structures of compounds 1, 2 and 3 were explored using IR spectroscopy, elemental analyses, PXRD, thermal gravimetric analysis (TGA), UV-Vis diffuse reflectance spectra and single-crystal X-ray diffraction in the solid state. Compound 1 is a mononuclear complex, compound 2 is a tetranuclear cubane-like clusteric oligomer and compound 3 possesses a 2-D polypseudorotaxane structure. Besides, the optical band gap and photocatalytic degradation properties of compounds 1-3 were also investigated and the excellent photodegradation efficiency of 2 may be due to the existence of distinct weak hydrogen bonds and face-to-face pi-pi stacking interactions.

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 1111-67-7 is helpful to your research. Related Products of 1111-67-7

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. Quality Control of Copper(I) oxide, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 1317-39-1

Microbicidal N-sulfonylglycin alkynyloxyphenethyl amide derivatives

The invention relates to novel pesticidally active compounds of the general formula I as well as possible isomers and mixtures of isomers thereof,whereinn is a number zero or one; andR1 is C1-C12alkyl that is unsubstituted or may be substituted by C1-C4alkoxy, C1-C4alkylthio, C1-C4alkylsulfonyl, C3-C8cycloalkyl, cyano, C1C6alkoxycarbonyl, C3-C6alkenyloxycarbonyl or by C3-C6alkynyloxycarbonyl; C3-C8cycloalkyl; C2-C12alkenyl; C2-C12alkynyl; C1-C12haloalkyl: or a group NR11R12 wherein R11 and R12 are each independently of the other hydrogen or C1-C8alkyl, or together are tetra- or penta-methylene;R2 and R3 are each independently of the other hydrogen; C1-C8alkyl; C1-C8alkyl substituted by hydroxy, C1-C4alkoxy, mercapto or by C1-C4alkylthio; C3-C8alkenyl; C3-C8alkynyl; C3-C8cycloalkyl; C3-C8cycloalkyl-C1-C4alkyl; or the two groups R2 and R3 together with the carbon atom to which they are bonded form a three- to eight-membered ring;R4, R5, R6 and R7 are identical or different and are each independently of the others hydrogen or C1-C4alkyl;R8 is C1-C6alkyl, C3-C6alkenyl or C3-C6alkynyl;A is C1-C6alkylene; andB is optionally mono- or poly-nuclear, unsubstituted or substituted aryl; optionally mono- or poly-nuclear, unsubstituted or substituted heteroaryl; C4-C12alkyl; or C3-C8cycloalkyl.The novel compounds have plant-protecting properties and are suitable for protecting plants against infestation by phytopathogenic microorganisms.

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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, 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.

Measurement of Antioxidant Capacity by Electron Spin Resonance Spectroscopy Based on Copper(II) Reduction

A new method is proposed for measuring the antioxidant capacity by electron spin resonance spectroscopy based on the loss of electron spin resonance signal after Cu2+ is reduced to Cu+ with antioxidant. Cu+ was removed by precipitation in the presence of SCN-. The remaining Cu2+ was coordinated with diethyldithiocarbamate, extracted into n-butanol and determined by electron spin resonance spectrometry. Eight standards widely used in antioxidant capacity determination, including Trolox, ascorbic acid, ferulic acid, rutin, caffeic acid, quercetin, chlorogenic acid, and gallic acid were investigated. The standard curves for determining the eight standards were plotted, and results showed that the linear regression correlation coefficients were all high enough (r > 0.99). Trolox equivalent antioxidant capacity values for the antioxidant standards were calculated, and a good correlation (r > 0.94) between the values obtained by the present method and cupric reducing antioxidant capacity method was observed. The present method was applied to the analysis of real fruit samples and the evaluation of the antioxidant capacity of these fruits. (Graph Presented).

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 1111-67-7 is helpful to your research. Application of 1111-67-7

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

 

Electric Literature 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 Article, and a compound is mentioned, 1111-67-7, Cuprous thiocyanate, introducing its new discovery.

CuSCN Nanowires as Electrodes for p-Type Quantum Dot Sensitized Solar Cells: Charge Transfer Dynamics and Alumina Passivation

Quantum dot sensitized solar cells (QDSSCs) are a promising photovoltaic technology due to their low cost and simplicity of fabrication. Most QDSSCs have an n-type configuration with electron injection from QDs into TiO2, which generally leads to unbalanced charge transport (slower hole transfer rate) limiting their efficiency and stability. We have previously demonstrated that p-type (inverted) QD sensitized cells have the potential to solve this problem. Here we show for the first time that electrodeposited CuSCN nanowires can be used as a p-type nanostructured electrode for p-QDSSCs. We demonstrate their efficient sensitization by heavy metal free CuInSxSe2-x quantum dots. Photophysical studies show efficient and fast hole injection from the excited QDs into the CuSCN nanowires. The transfer rate is strongly time dependent but the average rate of 2.5 ¡Á 109 s-1 is much faster than in previously studied sensitized systems based on NiO. Moreover, we have developed an original experiment allowing us to calculate independently the rates of charge injection and QD regeneration by the electrolyte and thus to determine which of these processes occurs first. The average QD regeneration rate (1.3 ¡Á 109 s-1) is in the same range as the hole injection rate, resulting in an overall balanced charge separation process. To reduce recombination in the sensitized systems and improve their stability, the CuSCN nanowires were coated with thin conformal layers of Al2O3 using atomic layer deposition (ALD) and fully characterized by XPS and EDX. We demonstrate that the alumina layer protects the surface of CuSCN nanowires, reduces charge recombination, and increases the overall charge transfer rate up to 1.5 times depending on the thickness of the deposited Al2O3 layer.

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

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

 

Related Products 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 Article£¬once mentioned of 1111-67-7

Silver Bismuth Sulfoiodide Solar Cells: Tuning Optoelectronic Properties by Sulfide Modification for Enhanced Photovoltaic Performance

Silver bismuth iodides (AgaBibIa+3b) are nontoxic and comparatively cheap photovoltaic materials, but their wide bandgaps and downshifted valence band edges limit their performance as light absorbers in solar cells. Herein, a strategy is introduced to tune the optoelectronic properties of AgaBibIa+3b by partial anionic substitution with the sulfide dianion. A consistent narrowing of the bandgap by 0.1 eV and an upshift of the valence band edge by 0.1?0.3 eV upon modification with sulfide are demonstrated for AgBiI4, Ag2BiI5, Ag3BiI6, and AgBi2I7 compositions. Solar cells based on silver bismuth sulfoiodides embedded into a mesoporous TiO2 electron-transporting scaffold, and a poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] hole-transporting layer significantly outperform devices based on sulfide-free materials, mainly due to enhancements in the photocurrent by up to 48%. A power conversion efficiency of 5.44 ¡À 0.07% (Jsc = 14.6 ¡À 0.1 mA cm?2; Voc = 569 ¡À 3 mV; fill factor = 65.7 ¡À 0.3%) under 1 sun irradiation and stability under ambient conditions for over a month are demonstrated. The results reported herein indicate that further improvements should be possible with this new class of photovoltaic materials upon advances in the synthetic procedures and an increase in the level of sulfide anionic substitution.

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

 

In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Safety of Copper(I) oxide, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 1317-39-1, name is Copper(I) oxide. In an article£¬Which mentioned a new discovery about 1317-39-1

Use of N-substituted sulfoximines for control of invertebrate pests

Methods to control certain invertebrates including insects in agricultural, urban, animal health, and industrial systems by directly or systemically applying to a locus where control is desired an effective amount of a compound of N-substituted sulfoximines.

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

 

In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Quality Control of Cuprous thiocyanate, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 1111-67-7, name is Cuprous thiocyanate. In an article£¬Which mentioned a new discovery about 1111-67-7

Exocyclic coordination chemistry of an O2S2- macrocycle with copper(i), mercury(ii) and palladium(ii) ions

The preparation and structures of the exocyclic coordination-based supramolecular complexes of a 14-membered dibenzo-O2S 2-macrocycle, L, with thiaphilic soft metal ions Cu(i), Hg(ii) and Pd(ii) are reported. The X-ray crystal structures of the eight complexes have been determined, and a range of the less common structural types, including mono- and multinuclear species with discrete and infinite forms were obtained. L reacts with copper(i) halides and afforded isostructural complexes of type [(Cu2X2)L]n (1: X = Cl, 2: X = Br) adopting a two-dimensional (2-D) polymeric structure linked by square-type Cu 2X2 clusters, while copper(i) iodide gave a yellow emissive complex {[(Cu4I4)L2]¡¤2.5H 2O}n (3) whose crystal structure was not available. Treatment of L with copper(i) thiocyanate gave an infinite 2-D coordination network [CuLSCN]n (4) in which copper atoms are linked by SCN – forming a 1-D backbone, then further cross-linked by Lvia Cu-S bonds resulting in a grid-type layered structure. Reactions of L with HgX 2 (X = Br and I) resulted in the formation of an interesting “ivy-leaves” shaped complex [HgLBr2]n (5) with a syndiotactic arrangement and a single-stranded complex [(Hg2I 4)L]n (6), respectively, adopting an infinite 1-D structure. Unlike the copper(i) and mercury(ii) complexes with the infinite structures, reactions of L with Pd(NO3)2 gave a 1:1 (metal-to-ligand) dinitrato complex cis-[PdL(NO3)2] (7) and a 1:2 bis(macrocycle) complex cis-[PdL2](NO3) 2 (8) in a discrete form depending on the molar ratio of the reactants. A straightforward one-pot reaction of Pd(NO3)2 with two equivalents of L also resulted in the isolation of the bis(macrocycle) complex 8. The comparative NMR and ESI-mass studies for the palladium(ii) complexes were also carried out. The results are discussed in terms of the exo-coordination modes as well as the anion coordination.

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

 

Synthetic Route 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

Syntheses, characterization, and electrochemistry of compounds containing 1-diphenylphosphino-1?-(di-tert-butylphosphino)ferrocene (dppdtbpf)

The reaction of copper(I) salts CuX (X = Cl, Br, I, CN, SCN), [Cu(CH3CN)4]PF6 with 1-diphenylphosphino-1?-di-tert-butylphosphinoferrocene (dppdtbpf) in 1:1 M ratio in DCM-MeOH (50:50 V/V) at room temperature afforded mono and binuclear compounds having formula [Cu2(mu-Cl)2(kappa2-P,P-dppdtbpf)2] (1), [Cu2(mu-Br)2(kappa2-P,P-dppdtbpf)2] (2) [Cu2(mu-I)2(kappa2-P,P-dppdtbpf)2] (3), [Cu2(mu-CN)2(kappa2-P,P-dppdtbpf)2] (4), [Cu2(mu2-SCN)2(kappa2-P,P-dppdtbpf)2] (5), and [Cu(kappa2-P,P-dppdtbpf)(CH3CN)2]PF6 (6). Reacting palladium(II) complex [Pd(C6H5CN)2Cl2] with dppdtbpf gave mononuclear compound [Pd(kappa2-P,P-dppdtbpf)Cl2] (7). The reaction of dppdtbpf with sulfur powder under reflux in chloroform afforded a ferrocene diphosphine disulfide dppSdtbpSf (8). All of the synthesized compounds were characterized by elemental analyses, IR, 1H and 31P NMR, ESI-MS and electronic absorption spectroscopy. Molecular structures for the compounds 5, 6, 7 and 8 were determined crystallographically. Compound 5 exists as centrosymmetric dimer in which the two copper atoms are bonded to two dppdtbpf ligands and two bridging thiocyanate groups in mu2-manner. In cationic compound 6, the copper atom is coordinated to one dppdtbpf ligand in kappa2-manner and two acetonitrile molecules, whereas in 7, the palladium(II) adopted cis square-planar geometry by coordinating to one dppdtbpf ligand in kappa2-manner and two chlorine atoms. Compound 8 revealed a sandwiched structure with both phosphine groups sulfurized. The electrochemical properties of 1-6 were studied by cyclic voltammetry. Compounds 1-6 exhibited moderately weak to strong luminescence properties, however compounds 7 and 8 are non-emissive in the solution state.

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

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