Tag: M.W:500-600

Electric Literature of 166330-10-5, An article , which mentions 166330-10-5, molecular formula is C36H28OP2. The compound – (Oxybis(2,1-phenylene))bis(diphenylphosphine) played an important role in people’s production and life.

Five mononuclear copper(I) complexes and one dinuclear silver(I) phosphine complex containing the bispyridylpyrrole ligand were synthesized and structurally characterized. Treatment of CuCl and the deprotonated bispyridylpyrrole ligand with bis(phosphine) ligands afforded the copper(I) complexes [(PDPH)Cu(XANTPhos)] (1), [(PDPH)Cu(DPEPhos)] (2), [(PDPBr)Cu(XANTPhos)] (3) and [(PDPBr)Cu(DPEPhos)] (4), while addition of two equivalences of PPh3 gave [(PDPBr)Cu(PPh3)2] (5), where PDPH- = 2,5-bis(2-pyridyl)pyrrole, PDPBr- = 2,5-bis(6?-bromo-2?-pyridyl)-pyrrole, XANTPhos = 9,9-di-methyl-4,5-bis(diphenylphosphino)xanthene, DPEPhos = oxydi-2,1-phenylene)bis-diphenylphosphine. Reaction of PDPBr- with AgOTf and DPEPhos yielded the dinuclear silver(I) complex [(PDPBr)Ag2(DPEPhos)](OTf) (6). All of these complexes were fully characterized on the basis of IR spectra, 1H and 31P NMR spectra, elements analysis, UV-Vis spectra and X-ray single crystal diffraction analysis. The photophysical properties of these complexes were also studied.

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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

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. 12150-46-8, C34H28FeP2. A document type is Article, introducing its new discovery., SDS of cas: 12150-46-8

A series of air-stable nickel complexes of the form L2Ni(aryl) X (L = monodentate phosphine, X = Cl, Br) and LNi(aryl)X (L = bis-phosphine) have been synthesized and are presented as a library of precatalysts suitable for a wide variety of nickel-catalyzed transformations. These complexes are easily synthesized from low-cost NiCl2·6H2O or NiBr 2·3H2O and the desired ligand followed by addition of 1 equiv of Grignard reagent. A selection of these complexes were characterized by single-crystal X-ray diffraction, and an analysis of their structural features is provided. A case study of their use as precatalysts for the nickel-catalyzed carbonyl-ene reaction is presented, showing superior reactivity in comparison to reactions using Ni(cod)2. Furthermore, as the precatalysts are all stable to air, no glovebox or inert-atmosphere techniques are required to make use of these complexes for nickel-catalyzed reactions.

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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

166330-10-5, Name is (Oxybis(2,1-phenylene))bis(diphenylphosphine), molecular formula is C36H28OP2, belongs to chiral-phosphine-ligands compound, is a common compound. In a patnet, once mentioned the new application about 166330-10-5, Recommanded Product: (Oxybis(2,1-phenylene))bis(diphenylphosphine)

Six heteroleptic cuprous complexes, [L1Cu(PPh3) 2](BF4) (1a), [L1Cu(DPEphos)](BF4) (1b), [L2Cu(PPh3)2](BF4) (2a), [L2Cu-(DPEphos)](BF4) (2b), [L3Cu(PPh 3)2](BF4) (3a), and [L3Cu-(DPEphos)] (BF4) (3b) {L1 = diphenyl(2-pyridyl)phosphane oxide, L2 = diphenyl(8-quinolyl)phosphane oxide, L3 = diphenyl(2-pyridylmethyl)phosphane oxide, DPEphos = bis[2-(diphenylphosphanyl) phenyl] ether}, were prepared and fully characterized. The electronic absorption spectra and quantum chemical calculations indicate that the lowest excited states of these complexes can be assigned to the metalto-ligand charge transfer (MLCT) transition. In poly(methyl methacrylate) (PMMA) films, these complexes exhibit bluegreen to orange emissions with long lifetimes ranging from 7.5 to 28.6 mus. With wide energy-band gaps of 3.50 and 3.28 eV, complexes 3a and 3b emit efficiently in 20 wt.-% PMMA films with photoluminescence quantum efficiencies of 0.69 and 0.72, and emission maxima at 477 nm and 495 nm, respectively. Electroluminescent devices were fabricated with these N,O-based CuI complexes as emitters. The best device performance, with a peak current efficiency of 4.9 cd/A, was obtained for 3b.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Recommanded Product: (Oxybis(2,1-phenylene))bis(diphenylphosphine). In my other articles, you can also check out more blogs about 166330-10-5

Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

Reference of 166330-10-5. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 166330-10-5, Name is (Oxybis(2,1-phenylene))bis(diphenylphosphine). In a document type is Article, introducing its new discovery.

Two ionic (1a and 1b) and two neutral (2a and 2b) Cu(i) complexes containing an un-deprotonated or a deprotonated nitrogen ligand {2-(4-methyl phenyl) imidazole[4,5-f]-1,10-phenanthroline, MHPIP} and different phosphine ligands (bis[2-(diphenylphosphino) phenyl]ether and PPh3) have been synthesized and characterized by elemental analysis, 1H NMR spectroscopy and X-ray crystallography (1b, 2a and 2b). The complexes adopt a distorted tetrahedral geometry constructed by MHPIP (or MPIP-) and phosphine ligands. The emission spectra show that the ionic complexes exhibit almost ignorable luminescence. However, the deprotonation of the nitrogen ligand makes the neutral complexes exhibit orange or yellow emission both in solution and solid-powder states. Considering the different luminous characters of the neutral complexes, density functional theory (DFT) calculations have been performed at the B3LYP/6-31G?? level to provide information about the impact of phosphine ligands on the frontier orbital.

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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.161265-03-8, Name is (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine), molecular formula is C39H32OP2. In a Article，once mentioned of 161265-03-8, Recommanded Product: (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine)

We have investigated the dynamics of the magnetization of three four-coordinate mononuclear cobalt(ii) compounds, which are synthesized conveniently and are air stable. Slow magnetic relaxation effects were observed for the compounds in the presence of a dc magnetic field. The Royal Society of Chemistry 2013.

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: (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine), you can also check out more blogs about161265-03-8

Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

In an article, published in an article, once mentioned the application of 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene,molecular formula is C34H28FeP2, is a conventional compound. this article was the specific content is as follows.Computed Properties of C34H28FeP2

Re(V)-imido and Re(V)-oxo complexes containing 1,1?-bis(diphenylphosphino)ferrocene (Fe(eta5-C5H4PPh2)2, dppf) were prepared from mer,trans-Re(O)Cl3(PPh3)2 (1), mer,trans-Re(NPh)Cl3(PPh3)2 (2), or mer,cis-Re(N-C6H3-2,6-i-Pr2)2Cl 3(py) (3). Compounds 1-3 reacted with dppf to give fac-Re(O)Cl3(dppf) (4), fac-Re(NPh)Cl3(dppf) (5), and mer-Re(N-C6H3-2,6-i-Pr2)Cl3(dppf) (6), respectively. Electrochemical studies performed on Re-oxo-dppf complexes (4) and Re-imido-dppf complexes (5 and 6) showed different redox behavior depending on the type of ligand coordinated to the Re metal. The structure of compound 4 was determined by X-ray diffraction.

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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

In an article, published in an article, once mentioned the application of 166330-10-5, Name is (Oxybis(2,1-phenylene))bis(diphenylphosphine),molecular formula is C36H28OP2, is a conventional compound. this article was the specific content is as follows.category: chiral-phosphine-ligands

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：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

In an article, published in an article, once mentioned the application of 166330-10-5, Name is (Oxybis(2,1-phenylene))bis(diphenylphosphine),molecular formula is C36H28OP2, is a conventional compound. this article was the specific content is as follows.category: chiral-phosphine-ligands

A process for the production of 4-acetoxybutyraldehyde is described. The process comprises reacting allyl acetate with a mixture of carbon monoxide and hydrogen in the presence of a solvent and a catalyst comprising a rhodium complex and a diphosphine. The diphoshine is a substituted or unsubstituted 2,2?-bis(dihydrocarbylphosphino)diphenyl ether. The process gives a high ratio of 4-acetoxybutyraldehyde:3-acetoxy-2-methylpropionaldehyde.

Do you like my blog? If you like, you can also browse other articles about this kind. category: chiral-phosphine-ligands. Thanks for taking the time to read the blog about 166330-10-5

Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

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. 161265-03-8, Name is (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine), molecular formula is C39H32OP2. In a Article，once mentioned of 161265-03-8, Quality Control of: (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine)

A novel Cu-catalyzed diastereo- and enantioselective desymmetrization of cyclopropenes to afford nonracemic cyclopropylboronates is described. Trapping the cyclopropylcopper intermediate with electrophilic amines allows for the synthesis of cyclopropylaminoboronic esters and demonstrates the potential of the approach for the synthesis of functionalized cyclopropanes.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Quality Control of: (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine). In my other articles, you can also check out more blogs about 161265-03-8

Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

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. 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, molecular formula is C34H28FeP2. In a Article，once mentioned of 12150-46-8, Safety of 1,1-Bis(diphenylphosphino)ferrocene

Diphosphine-bridged dimers of oxo-centered triruthenium-acetate cluster units, i.e., [{Ru3O(OAc)6(py)2} 2(dppan)](PF6)2 (2) and [{Ru 3O(OAc)6(py)2}2(dppf)](PF 6)2 (3) were prepared by reaction of 2.3 equivalent [Ru3O(OAc)6(py)2(CH3OH)](PF 6) with 9,10-bis(diphenylphosphino)anthracene (dppan) or 1,1?-bis(diphenylphosphino)ferrocene (dppf), respectively. Apparent redox wave splitting is observed in complex 2, revealing the presence of electronic communication between two triruthenium units mediated through bridging dppan. The complexes were characterized by elemental analysis, IR, UV-Vis, 31P NMR, and ES-MS spectroscopies, and cyclic and differential-pulse voltammetry. The crystal structure of complex 3 was determined by X-ray crystallography.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.Safety of 1,1-Bis(diphenylphosphino)ferrocene, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 12150-46-8, in my other articles.

Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate