Tag: M.W:700-800

32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II), molecular formula is C41H35ClP2Ru, belongs to ruthenium-catalysts compound, is a common compound. In a patnet, once mentioned the new application about 32993-05-8, Application In Synthesis of Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II)

Cyclization of 2-Ethynylphenyl Vinyl Ether Catalyzed by a Ruthenium Complex: Mechanism of Catalytic Cyclization and Stoichiometric Cycloisomerization

Catalytic cyclization reactions and new stoichiometric skeletal rearrangement cycloisomerizations of 2-ethynylphenyl vinyl ethers containing methyl substituents on the vinyl groups by using [Ru]Cl {[Ru]=Cp(PPh3)2Ru, Cp=eta5-cyclopentadienyl} were observed in MeOH and CH2Cl2, respectively. In MeOH, the catalytic cyclization of three different enynes gave the corresponding benzoxepine derivatives in high yields in each case. Interestingly, in the stoichiometric reactions of [Ru]Cl with enynes, two unprecedented rearrangements of enynes were observed in CH2Cl2. The presence of a methyl group in the vinyl unit plays a critical role in choosing one of the double bonds of the vinylidene ligand, that is, the Ru=Calpha or the Calpha=Cbeta bond, for the [2+2] cycloaddition in the cycloisomerization processes. Structure determination by single-crystal X-ray diffraction analysis along with various isotope studies corroborated the proposed mechanisms.

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 Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II). In my other articles, you can also check out more blogs about 32993-05-8

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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II), molecular formula is C41H35ClP2Ru, belongs to ruthenium-catalysts compound, is a common compound. In a patnet, once mentioned the new application about 32993-05-8, Recommanded Product: Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II)

Mono- and dinuclear maleonitriledithiolate and dibenzyldithiomaleonitrile complexes of (bipy)2Ru(II): synthesis, spectral and electrochemical study

[Ru(bipy)2{S2C2(CN)2}] and [Ru(bipy)2{(C6H5CH2)2S2C2(CN)2}][PF6]2 were synthesized by the reaction of [Ru(bipy)2Cl2]*2H2O with Na2S2C2(CN)2 or (C6H5CH2)2S2C2(CN)2 in aqueous ethanol, and used to form dinuclear species by binding Cp(PPh3)2Ru(II) or (bipy)2ClRu(II) moieties onto the CN nitrogen sites. Spectral and electrochemical properties of all complexes have been investigated. S2C2(CN)2(2-) is found to introduce a low lying dpi(Ru) .pi*.(S2C2(CN)2(2-)) MLCT state and an easily oxidizablecentre upon complexation. (C6H5CH2)2S2C2(CN)2 exhibits weaker pi acidity and imparts a 2852 cm**-1, 0.35 V lower stabilization to the ruthenium dpi orbitals than the saturated chain dithioether (CH3)2S2C2H2, as indicated in the Ru bipy MLCT absorption energy and the first oxidation potential of the corresponding (bipy)2Ru(II) complexes.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Recommanded Product: Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II). In my other articles, you can also check out more blogs about 32993-05-8

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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

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. 32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II), molecular formula is C41H35ClP2Ru. In a Article£¬once mentioned of 32993-05-8, SDS of cas: 32993-05-8

A new ruthenium cyclopentadienyl azole compound with activity on tumor cell lines and trypanosomatid parasites

(Chemical Equation Presented). As part of our efforts to develop organometallic ruthenium compounds bearing activity on both trypanosomatid parasites and tumor cells, a new Ru(II)-cyclopentadienyl clotrimazole complex, [RuCp(PPh3)2(CTZ)](CF3SO3), where Cp = cyclopentadienyl, CTZ = clotrimazole, was synthesized and characterized. The compound was evaluated in vitro on T. cruzi (Y strain), the infective form of T. brucei brucei strain 427 (cell line 449), on three human tumor cell lines with different sensitivity to cisplatin (A2780, ovary; MCF7, breast; HeLa, cervix) and on J774 murine macrophages as mammalian cell model. The new compound is more cytotoxic on T. cruzi and on the tumor cell lines than the reference drugs (Nifurtimox and cisplatin, respectively). In addition, complexation of the bioactive CTZ to the {RuCp(PPh3)} moiety leads to significant increase of the antiparasitic and antitumoral activity. To get insight into the potential “dual” mechanism of antiparasitic action emerging from the presence of Ru(II) and CTZ in a single molecule, the inhibitory effect of this new complex on the biosynthesis of T. cruzi sterols of membrane and the interaction with DNA were studied. Although the tested complex does not affect DNA, it affects the T. cruzi biosynthetic pathway of conversion of squalene to squalene oxide. According to the results reported here, [RuCp(PPh3)2(CTZ)][CF3SO3] could be considered a prospective antiparasitic and/or antitumoral agent that deserves further evaluation.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.SDS of cas: 32993-05-8. In my other articles, you can also check out more blogs about 32993-05-8

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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

92361-49-4, Name is Chloro(pentamethylcyclopentadienyl)bis(triphenylphosphine)ruthenium(II), molecular formula is C46H45ClP2Ru, belongs to ruthenium-catalysts compound, is a common compound. In a patnet, once mentioned the new application about 92361-49-4, Product Details of 92361-49-4

Reaction of the in-situ-generated ruthenium-acetylide complex C5Me5Ru(PPh3)C?CPh with small molecules

A coordinatively unsaturated acetylide species C5Me5Ru(PPh3)C?CPh (1) was generated in situ from the reaction of ruthenium-vinylidene complex C5-Me5Ru(Cl)(PPh3)=C=CHPh (2) with Et3N. The vinylidene complex 2 was prepared from the substitution reaction of C5Me5Ru(PPh3)2Cl with PhC?CH. The in-situ-generated 1 was found to react readily with a variety of small molecules. For example, the reaction of 1 with CO produced the stable adduct C5Me5Ru(CO)-(PPh3)C?CPh (3) in 85% yield, the structure of which was established by X-ray crystallography. The similar reactions of 1 with H2 and PhC?CPh also gave the hydride complex C5Me5Ru(PPh3)(H)(H2C=CHPh) (4) (76% yield) and the alkyne complex C5Me5Ru(PPh3)-(PhC?CPh)C?CPh (5) (85% yield), respectively. The reaction of 1 with CO2 produced the carboxylate complex C5Me5Ru(PPh3)(eta2-O 2CC?CPh) (6) from the insertion of CO2 to the ruthenium-acetylide carbon bond.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Product Details of 92361-49-4. In my other articles, you can also check out more blogs about 92361-49-4

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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

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. 32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II), molecular formula is C41H35ClP2Ru. In a Article£¬once mentioned of 32993-05-8, Recommanded Product: Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II)

Reactions of furylruthenium complexes with oxygen and trimethylsilyl azide

The reaction of the (alpha-alkoxyfuryl)ruthenium complexes 4 with oxygen opens the five-membered furyl ring to give the addition product [Ru]O 2CCR=CHCO2CH3, (5, [Ru] = Cp(PPh 3)2Ru). Further reactions of 5 with CH3I and with organic acid gave CH3O2CCR=CHCO2CH 3, (6), and HO2CCR=CHCO2CH3, (7), respectively. The reaction of 4 with TMSN3 [TMS = (CH 3)3Si] gives the ruthenium azide [Ru]-N3 and alpha-alkoxyfuran, which is readily hydrolyzed to lactone in acidic medium. Treatment of the cyclopropenylruthenium complex 11b containing a methyl crotonate group with TMSN3 affords the five-membered-ring triazole and [Ru]-CN. In this reaction cleavage of the C=C double bond of the three-membered ring could be caused by consecutive additions of TMSN3 to olefinic carbon atoms of intermediates formed during the reaction. Wiley-VCH Verlag GmbH & Co. KGaA, 2006.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Recommanded Product: Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II). In my other articles, you can also check out more blogs about 32993-05-8

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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II), molecular formula is C41H35ClP2Ru. In a Article£¬once mentioned of 32993-05-8, Recommanded Product: 32993-05-8

Heterotrimetallic M-M?-M? transition metal complexes based on 1,3,5-triethynylbenzene: Synthesis, solid state structure, and electrochemical and UV-vis characterization. EPR analysis of the in Situ generated associated radical cations

The synthesis of a series of complexes with different organometallic building blocks unsymmetrically arranged around the periphery of a 1,3,5-triethynylbenzene core is discussed. They are accessible by diverse consecutive reaction sequences, which allow the introduction of transition metal units such as Fc, [(tBu2bpy)(CO)3Re], [(eta5-C5H5)(Ph3P)2Ru], [(eta5-C5H5)(Ph3P) 2Os], and trans-[(Ph3P)2(Cl)Pt] (Fc = (eta5-C5H5)(eta5-C 5H4)Fe; tBu2bpy = 4,4?-di-tert-butyl-2,2?-bipyridyl). The solid state structures of five complexes have been determined. The electrochemical behavior of the newly synthesized mono-, heterobi-, and heterotrimetallic assemblies have been studied, showing that there is no significant electronic interaction between the respective metal atoms. UV-vis spectroscopic measurements suggest a weak interaction between the appropriate metal atoms. The associated radical cations were in situ generated by stepwise chemical oxidation and characterized by continuous wave electron paramagnetic resonance (EPR) investigations in X-band performed at low temperatures.

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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Synthetic Route of 32993-05-8, 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. 32993-05-8, C41H35ClP2Ru. A document type is Article, introducing its new discovery.

Cyclopentadienyl-ruthenium and -osmium chemistry XXXVI. Oligomerisation of phenylacetylide residues on ruthenium. Crystal structures of 2(mu-C8Ph4) and 2

Reactions between RuCl(PPh3)2(eta-C5H5) and AgC2Ph afforded a deep blue binuclear complex, shown by X-ray crystallography to contain a planar tricyclic diruthenadicyclobutadienobenzene system, formed by tetramerisation of phenylacetylide residues at the ruthenium centres.A deep purple complex, isolated in small yield from the same reaction, was similarly shown to contain a diruthenapentacyclic system, formed by an unprecedented oligomerisation of five phenylacetylide units.Related reactions have given <(Ru(C2Ph)(PPh3)2(eta-C5H5)>2Ag> and the divinylidene <2(mu-C4Ph2)>2.

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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II), molecular formula is C41H35ClP2Ru. In a Article£¬once mentioned of 32993-05-8, Safety of Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II)

Synthesis and Stereochemical Studies of the Chiral Ruthenium Complexes X> .Crystal Structure of <(S)Ru(eta-C5H5)<(S)dpompyr-PP'>Cl>

A simple procedure for the preparation of <(S)Ru(eta-C5H5)<(S)dpompyr-PP'>H> from is described.The hydride reacts stereospecifically with chloroform or carbon tetrachloride to give <(S)Ru(eta-C5H5)<(S)dpompyr-PP'>Cl> whose structure is reported.The crystals are monoclinic, space group P21 with a = 11.076(2), b = 10.908(2), c = 12.825(3) Angstroem, beta = 92.26(2), and Z = 2.The structure was solved by the heavy-atom method and refined to R = 0.0322 using 2 306 diffractometer data with I > 3?(I).Synthesis of this chloro-complex from and (S)dpompyr proceeds with only modest diastereoselectivity whereas reduction of <(S)Ru(eta-C5H5)<(S)dpompyr-PP'>Cl> using LiAlH4 regenerates 88percent <(S)Ru(eta-C5H5)<(S)dpompyr-PP'>H>.Mechanisms are proposed to explain the observed diastereoselectivities.Circular dichroism and 1H, 13C, and 31P n.m.r. spectra of all new compounds are also reported.

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.Safety of Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II), you can also check out more blogs about32993-05-8

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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

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Synthesis and structural characterization of new piano-stool ruthenium(II) complexes bearing 1-butylimidazole heteroaromatic ligand

New cationic ruthenium(II) complexes with the formula [Ru(eta 5-C5H5)(LL)(1-BuIm)] [Z], with (LL) = 2PPh 3 or DPPE, and Z = CF3SO3-, PF 6-, BPh4-, have been synthesized and fully characterized. Spectroscopic and electrochemical studies revealed that the electronic properties of the coordinated 1-butylimidazole were clearly influenced by the nature of the phosphane coligands (LL) and also by the different counter ions. The solid state structures of the six complexes determined by X-ray crystallographic studies, confirmed the expected distorted three-legged piano stool structure. However the geometry of the 1-butylimidazole ligand was found considerably different in all six compounds, being governed by the stereochemistry of the mono and bidentate coligands (PPh3 or DPPE).

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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

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. 14564-35-3, Name is Dichlorodicarbonylbis(triphenylphosphine)ruthenium(II), molecular formula is C38H34Cl2O2P2Ru. In a Article£¬once mentioned of 14564-35-3, Computed Properties of C38H34Cl2O2P2Ru

HOMOGENEOUS HYDROGENATION OF KETONES TO ALCOHOLS WITH RUTHENIUM COMPLEX CATALYSTS

A number of ruthenium triphenylphosphine complexes catalyse the reduction of ketones to their corresponding alcohols in the presence of water.The most convenient catalyst precursors are carbonyl containing complexes which do not promote decarbonylation of the substrate.The hydrogenation of acetone with hydridochlorocarbonyltris(triphenylphosphine)ruthenium is first order with respect to the substrate concentration, the catalyst concentration, the hydrogen pressure and the water concentration.Turnover numbers up to 15,000 have been achieved with this catalyst.Other ketones are also reduced by RuHCl(CO)(PPh3)3 and the rate of the reaction is dependent on the nature of the substrate.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.Computed Properties of C38H34Cl2O2P2Ru, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 14564-35-3, in my other articles.

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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI