Category: 92361-49-4

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The synthesis of an anionic, tetraphenylborate-functionalized, [P,N]-hybrid phosphinobenzimidazole ligand and its hemilabile behaviour in ruthenium zwitterion chemistry

A new anionic [P,N]-hybrid ligand based on a phosphinobenzimidazole scaffold and functionalized with a tetraphenylborate substituent is reported. This new anionic ligand readily chelates to a variety of ruthenium- cyclopentadienyl and -pentamethylcyclopentadienyl precursors to form a series of zwitterionic ruthenium piano-stool complexes (eta5-C 5R5)Ru(L)(kappa2-P,N) (R = H or Me; L = CO or PPh3). In the presence of excess CO or 1-alkynes, the chelate complexes undergo ring-opening of the kappa2-P,N ligand at the ruthenium-nitrogen bond (in some cases reversibly) under relatively mild conditions. In particular, the reactions with 1-alkynes proceed via vinylidene intermediates which subsequently insert into the ruthenium-nitrogen bond of the kappa2-P,N ligand.

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

Synthetic Route of 92361-49-4. Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 92361-49-4, Name is Chloro(pentamethylcyclopentadienyl)bis(triphenylphosphine)ruthenium(II)

Novel mononuclear eta5-pentamethylcyclopentadienyl complexes of platinum group metals bearing pyrazolylpyridazine ligands: Syntheses and spectral studies

Condensation of 3,6-dichloropyridazine with 3,5-dimethylpyrazole in 1:1 ratio yielded one side substituted pyrazolylpyridazine ligand 3-chloro-6-(3,5-dimethylpyrazolyl)pyridazine (L) while condensation of 3,6-dichloropyridazine with substituted pyrazoles in 1:2 ratio yielded both side substituted pyrazolylpyridazine ligands such as 3,6-bis(pyrazolyl)pyridazine (L1), 3,6-bis(3-methylpyrazolyl)pyridazine (L2) and 3,6-bis(3,5- dimethylpyrazolyl)pyridazine (L3). A new series of cationic mononuclear complexes of the type [(eta5-Cp)Ma(L)(PPh3)]PF6, [(eta5-Cp)Mb(L)Cl]PF6, [(eta5-Cp)Ru(L?)(PPh3)]PF6and [(eta5-Cp)Mb(L?)Cl]+(where Ma= Ru, Os; Mb= Rh, Ir and L? = L1, L2, L3) bearing pyrazolylpyridazine and eta5-cyclopentadienyl ligands are reported. The complexes have been completely characterized by spectral studies. The molecular structures of representative complexes have been determined by single crystal X-ray crystallography.

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

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Ethinylkomplexe des rutheniums mit terminalen hauptgruppenelement-substituenten: Systematischer aufbau metallgebundener phosphoniumacetylid-liganden R?R2P(+)-C?C|(-)

Treatment of Cp*RuL2Cl (Cp* = C5Me5; L = PPh3, PMe3) with Me3SiC?CH in the presence of NH4[PF6] in CH2Cl2 yielded the expected vinylidene compounds [Cp*RuL2=C=CH2][PF6] with L = PPh3 (1) and PMe3 (1a), which were deprotonated by KOBut in THF to give the corresponding ethynyl complexes Cp*Ru(PPh3)2C?CH (2) and Cp*Ru(PMe3)2C?CH (2a). Metalation of 2 using n-BuLi or t-BuLi in THF-hexane, followed by reaction of the lithio intermediate Cp*Ru(PPh3)2C?CLi with ClER3 (E = Si, Ge, Sn) or C1PR2, resulted in the formation of substituted derivatives, Cp*Ru(PPh3)2C?CER3 [ER3 = SiMe3 (3), GeMe3 (4), SnBun3 (5)] and Cp*Ru(PPh3)2C?CPR2 [PR2 = PPh2 (6), PBut2 (7)] respectively. Quaternization of 6 and 7 by alkyl iodides in toluene smoothly produced phosphonioethynyl complexes, [Cp*Ru(PPh3)2C?CPR2R?]I [PR2R? = PPh2Me (8), PBut2Me (9), PPh2Prn (10), PBut2Prn (11)], the cations of which may be regarded as donor/acceptor-stabilized derivatives of dicarbon, C2.

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

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Syntheses, structures, and spectro-electrochemistry of {Cp*(PP)Ru}C?CC?C{Ru(PP)Cp*} (PP = dppm, dppe) and their mono- and dications

The complexes {Cp*(PP)Ru}2(mu-C?CC?C) (PP = dppm 5a, dppe 5b) have been synthesized from RuCl(PP)Cp* (1a/b) via the corresponding vinylidenes [Ru(=C=CH2)(PP)Cp*]+ (2a/b), deprotonation (KOBut) to the ethynyls Ru(C?CH)(PP)Cp* (3a/b), oxidative coupling ([FeCp 2][PF6]) to the bis(vinylidenes) [{Ru(PP)Cp*} 2{mu-(=C=CHCH=C=)}]2+ (4a/b), and deprotonation [dbu (4a), KOBut (4b)]. Electrochemistry of 5a/b revealed the expected sequence of four le redox steps, which occurred at significantly lower E values than found for the Ru(PPh3)2Cp analogue. Single-crystal X-ray structure determinations are reported for 1a/b, 2a/b, 3a/b, 4a/b, and 5a/b, together with the oxidized products [5b][PF6] n (n = 1, 2). In the monocation [5b][PF6] the Ru-C(1) [1.931(2) A] and C-C distances [1.248-1.338(3) A] are intermediate between those found in 5b and the dication [5b]2+. The short Ru-C [1.857(5) A] and experimentally equal C-C distances [1.269-1.280(6) A] in [5b] [PF6]2 confirm the anticipated dicarbene-cumulene structure for the Ru=C=C=C=C=Ru bridge.

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

Related Products of 92361-49-4. Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 92361-49-4, Name is Chloro(pentamethylcyclopentadienyl)bis(triphenylphosphine)ruthenium(II). In a document type is Article, introducing its new discovery.

An unusual Cu2Ru2 cluster containing a tetrameric phenylethynyl ligand

The reaction between RuCl(PPh3)2Cp* and {Cu(CCPh)}n in refluxing benzene afforded Ru2Cu2(C2Ph)5H2(Cl)(PPh3)Cp*2, which contains an unusual tetramer of the phenylethynyl group which interacts with an Ru…Cu…Cu…Ru chain. The second Ru atom is part of a ruthenocenyl moiety which interacts weakly with the second Cu atom, and bears a vinylidene which bridges an Ru-Cu vector. The structure of a second modification of Ru(C{triple bond, long}CPh)(CO)(PPh3)Cp* is also reported.

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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. 92361-49-4, Name is Chloro(pentamethylcyclopentadienyl)bis(triphenylphosphine)ruthenium(II), molecular formula is C46H45ClP2Ru. In a Article£¬once mentioned of 92361-49-4, HPLC of Formula: C46H45ClP2Ru

Pentamethylcyclopentadienyl ruthenium(II) complexes of para-substituted N-(pyrid-2-ylmethylene)-phenylamine ligands: Syntheses, spectral and structural studies

The reaction of [(eta5-C5Me5)Ru(PPh 3)2Cl] (1) with acetonitrile in the presence of excess NH4PF6 leads to the formation of the cationic ruthenium(II) complex [(eta5-C5Me5) Ru(PPh3)2(CH3CN)]PF6 (2). The complex (2) reacts with a series of N,N? donor Schiff base ligands viz. para-substituted N-(pyrid-2-ylmethylene)-phenylamines (ppa) in methanol to yield pentamethylcylopentadienyl ruthenium(II) Schiff base complexes of the formulation [(eta5-C5Me5)Ru(PPh 3)(C5H4N-2-CHN-C6H 4-p-X)]PF6 [3a]PF6-[3f]PF6, where C5Me5 = pentamethylcylopentadienyl, X = H, [3a]PF 6, Me, [3b]PF6, OMe, [3c]PF6, NO2, [3d]PF6, Cl, [3e]PF6, COOH, [3f]PF6. The complexes were isolated as their hexafluorophosphate salts. The complexes were fully characterized on the basis of elemental analyses and NMR spectroscopy. The molecular structure of a representative complex, [(eta5-C 5Me5)Ru(PPh3)(C5H 4N-2-CHN-C6H4-p-Cl)]PF6 [3e]PF 6, has been established by X-ray crystallography.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.HPLC of Formula: C46H45ClP2Ru, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 92361-49-4, in my other articles.

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

Synthetic Route of 92361-49-4, Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 92361-49-4, Name is Chloro(pentamethylcyclopentadienyl)bis(triphenylphosphine)ruthenium(II), molecular formula is C46H45ClP2Ru. In a Article£¬once mentioned of 92361-49-4

A comparison of Cp*- and Tp-ruthenium carbyne complexes prepared via site selective electrophilic addition to neutral ruthenium vinylidenes

The synthesis and characterization of a series of ruthenium carbyne complexes supported by either pentamethylcyclopentadienyl (Cp*) or hydridotris(pyrazolyl)borate (Tp) ligands are discussed. Reacting the neutral ruthenium(II) vinylidenes [Cp*Cl(PPh3)Ru(CCHR)] (1) or [TpCl(PPh3)Ru(CCHR)] (2) with excess HBF4 ? Et 2O yields the ruthenium(IV) carbynes [Cp*Cl(PPh 3)Ru(CCH2R)][BF4] (3: R = tBu, 3a; R = nBu, 3b; R = Ph, 3c), and [TpCl(PPh3)Ru(CCH 2R)][BF4] (4: R = tBu, 4a; R = nBu, 4b; R = Ph, 4c). Complexes 3a and 3b are isolable solids, whereas 3c and 4a-c must be prepared and examined in solution at low temperatures using variable temperature NMR spectroscopy. In contrast, reactions of 1 or 2 (R = Ph) with MeOTf selectively yield the chloride abstracted products [Cp*(OTf) (PPh3)Ru(CCHPh)] (5) or [Tp(OTf)(PPh3)Ru(CCHPh)] (6), respectively, along with one equivalent of MeCl. When R = tBu or nBu, the reactions are much less selective. The relative stabilities of the complexes reported are compared and discussed.

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 92361-49-4 is helpful to your research., Synthetic Route of 92361-49-4

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

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Click chemistry approach for the regioselective synthesis of iso-indoline-1,3-dione-linked 1,4 and 1,5 coumarinyl 1,2,3-triazoles and their photophysical properties

Copper-catalyzed reaction of N-propargyl isoindoline-1,3-dione and 4-azidomethyl coumarins / 4-azidomethyl-1-aza coumarins under click chemistry conditions afforded 1,4-disubstituted 1,2,3-triazoles, whereas ruthenium catalysis yielded isomeric 1,5-disubstituted 1,2,3-triazoles. The two regioisomers have been distinguished by NOE studies. UV absorption for a given pair of isomers exhibited similar trend, whereas fluorescence measurements showed considerable differences. Photo physical studies on the interaction of azides with copper and ruthenium have also been performed.

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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. 92361-49-4, Name is Chloro(pentamethylcyclopentadienyl)bis(triphenylphosphine)ruthenium(II), molecular formula is C46H45ClP2Ru. In a Article£¬once mentioned of 92361-49-4, Recommanded Product: 92361-49-4

Selective linear coupling reaction of acetylene and acrylonitrile catalyzed by the well-defined metallacyclopentadiene complex C5Me5(PPh3)(Cl)RuCH=CHCH=CH

The metallacyclopentadiene complex C5Me5(PPh3)(Cl)RuCH=CHCH=CH (1) was found to catalyze the linear coupling reaction of acetylene and acrylonitrile to give predominantly 2(E),4(Z),6-heptatrienenitrile (3; TON = 15, 85% selectivity). The coupling reaction is proposed to occur via an initial PPh3 dissociation from 1 and the subsequent insertion of acrylonitrile.

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Reference£º
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. 92361-49-4, Name is Chloro(pentamethylcyclopentadienyl)bis(triphenylphosphine)ruthenium(II), molecular formula is C46H45ClP2Ru. In a Article£¬once mentioned of 92361-49-4, Quality Control of: Chloro(pentamethylcyclopentadienyl)bis(triphenylphosphine)ruthenium(II)

Transition metal alkynyl complexes by transmetallation from Au(CXiCAr)(PPh3) (Ar = C6H5 or C 6H4Me-4)

Facile acetylide transfer reactions take place between gold(i) complexes Au(CXiCAr)(PPh3) (Ar = C6H5 or C 6H4Me-4) and a variety of representative inorganic and organometallic complexes MXLn (M = metal, X = halide, Ln = supporting ligands) featuring metals from groups 8-11, to afford the corresponding metal-alkynyl complexes M(CXiCR)Ln in modest to good yield. Reaction products have been characterised by spectroscopic methods, and molecular structure determinations are reported for Fe(CXiCC6H 4Me-4)(dppe)Cp, Ru(CXiCC6H4Me-4)(dppe) Cp*, Ru(CXiCC6F5)(eta2-O 2)(PPh3)Cp*, Ir(CXiCC6H 4Me-4)(eta2-O2)(CO)(PPh3) 2, Ni(CXiCC6H4Me-4)(PPh3)Cp and trans-Pt(CXiCAr)2L2 (Ar = C6H5, L = PPh3; Ar = C6H4Me-4, L = PPh3, PMe3). The Royal Society of Chemistry 2009.

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