Category: 37366-09-9

37366-09-9, Name is Dichloro(benzene)ruthenium(II) dimer, molecular formula is C12H12Cl4Ru2, belongs to ruthenium-catalysts compound, is a common compound. In a patnet, once mentioned the new application about 37366-09-9, Computed Properties of C12H12Cl4Ru2

METHOD FOR PRODUCING A RUTHENIUM COMPLEX

Provided is a method for producing a ruthenium complex comprises the step of reacting a ruthenium compound represented by general formula (1): [RuX(L)(PP)]X ??(1), wherein Ru represents a ruthenium atom; X represents a halogen atom; L represents an arene; and PP represents an optically active bisphosphine, with a carboxylate salt represented by general formula (2): R1CO2M ??(2), wherein M represents a monovalent cation; and R1 represents a group selected from the group consisting of alkyl groups, haloalkyl groups, phenyl groups optionally having a substituent(s), 1-aminoalkyl groups and 1-amino-1-phenylalkyl groups, to produce a ruthenium complex represented by general formula (3): Ru(OCOR1)2(PP) ??(3), wherein R1 represents the group selected from the group consisting of alkyl groups, haloalkyl groups, phenyl groups optionally having a substituent(s), 1-aminoalkyl groups and 1-amino-1-phenylalkyl groups; and PP represents the optically active bisphosphine.

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

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Synthesis of strained complexes of arene d6 metals with benzoylthiourea and their spectral studies

Halide bridged arene d6 platinum group metal precursors on treatment with thiourea derivatives (L1 and L2) yielded a series of neutral mono-dentate complexes (1?8). In general complexes have been formulated as [(arene)M(L)?1(S)Cl2] where L = L1, M = Ru, arene = p-cymene 1; benzene 2; arene = Cp* M = Rh 3 and Ir 4; L = L2, M = Ru, p-cymene 5; benzene 6; arene = Cp* M = Rh 7 and Ir 8. Structural studies revealed that thiourea ligand coordinate to the metal in a mono-dentate fashion via S atom. Further treatment of mono-dentate complexes 1 and 5 with NaN3 in polar solvent resulted in the formation of highly strained ?2(N,S) azido complexes 9 and 10 whereas reaction of complex 7 yielded a six membered ring ?2(S,O) azido complex 11. Reaction of complex 9 with dimethylacetylene dicarboxylate (DMAD) and diethylacetylene dicarboxylate (DEAD) leads to the formation of nitrogen (N2) bound triazolato complexes 12 and 13 whereas reaction of complex 11 with the same yielded nitrogen (N1) bound triazolato complexes 14 and 15. However reaction of complex 10 with both DMAD and DEAD leads to decomposition of the products. All these complexes have been characterized by various spectroscopic techniques. The molecular structures of the representative complexes 1, 2, 3, 6, 7, 9, 11 and 12 have been determined by single crystal X-ray diffraction study.

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

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Rapid water oxidation electrocatalysis by a ruthenium complex of the tripodal ligand tris(2-pyridyl)phosphine oxide

The tris(2-pyridyl)phosphine oxide (Py3PO) complex [Ru(Py3PO)(bpy)(OH2)]2+ (bpy is 2,2?-bipyridine) is a pH-dependent water oxidation electrocatalyst that accelerates dramatically with increasing pH – up to 780 s-1 at pH 10 (?1 V overpotential). Despite retaining the pentakis(pyridine) ligand arrangement common to previously reported catalysts, the tripodal Py3PO ligand framework supports much faster electrocatalysis. The early stages of the catalytic cycle are proposed to follow the typical pattern of single-site ruthenium catalysts, with two sequential 1H+/1e- proton-coupled electron transfer (PCET) oxidations, but the pH-dependent onset of catalysis and rapid rates are distinguishing features of the present system. This journal is

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

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Ligand-Tuned C?H Bond Activation/Arylation of 2-Arylpyridines over Pyridine-Based N,O/N,N Ligated Ruthenium?Arene Complexes

Water-soluble ruthenium(II)?arene complexes [(eta6-arene)Ru(kappa2-L)]n+ (n = 0, 1) ([Ru]-1?[Ru]-10) containing pyridine-based bischelating N,O/N,N donor ligands (L1?L5) are synthesized and employed for the catalytic C?H bond activation/arylation of a wide range of 2-phenylpyridines and aryl halides in water, affording the corresponding mono- and biarylated products. Exploring the reactivity of the synthesized complexes, our investigations, including time-dependent 1H NMR spectroscopic studies with ruthenium?arene catalysts, demonstrate a remarkable structure?activity relationship for the ligand-tuned C?H activation/arylation of 2-phenylpyridine, where the complexes with bischelating N,O donor-based ligands (acteylpyridine and picolinate) outperform those with N,N donor ligands (iminopyridine). Moreover, among the N,O donor ligands, a distinct effect of the nature of the coordinating oxygen donor on the catalytic activity is also observed, where ruthenium?arene complexes having N,O donor ligands (acetylpyridine) with neutral oxygen-donor atoms exhibit enhanced catalytic activity over those with anionic oxygen-donor atoms (picolinate). The observed trend in the catalytic activity is attributed to the ligand-promoted facile deprotonation and coordination?decoordination interconversion behavior. In addition, molecular structures for a few of the representative complexes ([Ru]-2, [Ru]-4, and [Ru]-5) are authenticated by single-crystal X-ray diffraction studies.

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

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Transfer hydrogenation of ketones catalysed by new half-sandwich ruthenium(II) complexes bearing the sulfonated phosphane (meta-sulfonatophenyl) diphenylphosphane potassium salt (TPPMS)

New half-sandwich ruthenium(II) complexes [RuCl2(eta 6-arene)(TPPMS)] [eta6-arene = p-cymene (1a), benzene (1b)] and [RuCl(eta6-arene)(TPPMS)2][Cl] [eta6-arene = p-cymene (2a), benzene (2b)] containing the water-soluble (meta-sulfonatophenyl)diphenylphosphane potassium salt (TPPMS) have been synthesised. The X-ray analysis for complex 1a revealed that, in the solid state, complex anions are held together in the crystal lattice by weak electrostatic interactions with potassium cations leading to a linear chain structure. The extent of the association in solution depends on the solvent and the determination of the size of the particles in THF can be accomplished using Multiangle Light Scattering (MALS). The new complexes proved to be excellent catalysts for transfer hydrogenation of ketones and the hydrophilic properties of the TPPMS ligand allow the catalyst recovery. The hydride derivative [RuClH(eta6-p-cymene)(TPPMS)] (4) has also been shown to be an efficient catalyst for these processes. Moreover, when 1a was used as catalyst, complex 4 was observed as the main product after the catalysis, supporting the implication of hydride species in transfer hydrogenation catalysis. Wiley-VCH Verlag GmbH & Co. KGaA, 2006.

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

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Synthesis of the Ruthenium Imido Complexes, 2 (R = Pri or Me), and the Crystal Structure of 2

Rhutenium imido complexes, <(eta-C6H6)Ru(N-2,6-R2C6H3)>2 (R = Pri 1, Me2), have been synthesised by the room temperature reaction of <(nu-C6H6)-RuCl2>2 with 2 equiv. of LiNH(2,6-R2C6H3) and 1 has been shown by single-crystal X-ray diffraction to be a symmetrical, imido-bridged dimer containing a bent Ru2N2 bridge.

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

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Synthesis and characterization of two novel, mono-lacunary Dawson polyoxometalate-based, water-soluble organometallic ruthenium(II) complexes: Molecular structure of [{(C6H6)Ru(H2O)} (alpha2-P2W17O61)]8-

The synthesis and structural characterization of a novel class of mono-lacunary Dawson polyoxometalate-(POM-)based, water-soluble organometallic complexes, which are expected to be effective homogeneous oxidation catalyst precursors in water, is described. The organometallic complexes K 8[{(C6H6)Ru(H2O)} (alpha2-P2W17O61)]¡¤12H 2O (1) and K8[{(p-cymene)Ru(H2O)} (alpha2-P2W17O61)]¡¤16H 2O (2) were successfully prepared by direct reactions of the mono-lacunary Dawson POM K10[alpha2-P2W 17O61]¡¤19H2O with the organometallic precursors [(C6H6)RuCl2]2 and [(p-cymene)RuCl2]2, respectively, in aqueous media and characterized by complete elemental analysis, thermogravimetric and differential thermal analyses (TG/DTA), and FT-IR and solution (1H, 13C, 31P, and 183W) NMR spectroscopy. The molecular structure of [{(C6H6)Ru(H2O)} (alpha2-P2W17O61)]8- (1a), in which the binding of the cationic organometallic group {(C 6H6)Ru(H2O)}2+ occurs through two oxygen atoms of the four available oxygen atoms in the mono-lacunary site of the POM, resulting in overall C1 symmetry, was successfully determined by single-crystal X-ray analysis. Interestingly, the hydrophilicity of the organometallic precursors is greatly enhanced by binding to a mono-lacunary Dawson POM with higher hydrophilicity. Wiley-VCH Verlag GmbH & Co. KGaA, 2006.

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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 catalytic properties of two arene-ruthenium(II) complexes bearing N-(2-pyridinyl)aminodiphenylphosphine sulfide ligands

Treatment of [(arene)Ru(mu-Cl)Cl]2 with Ph2P(S)NH(2-py) in the presence or absence of base gave two arene-ruthenium(II) complexes [(eta6-p-cymene)Ru{kappa2-N,N-Ph2P(S)N(2-py)}Cl] (1) and [(eta6-benzene)Ru{kappa1-N-Ph2P(S)NH(2-py)}Cl2] (2), which have been characterized by infrared, nuclear magnetic resonance spectroscopies, and mass spectrometry along with microanalyses. Crystal structures of Ph2P(S)NH(2-py) ¡¤ 1/4C6H14, 1 and 2 ¡¤ 1/2CH2Cl2 were determined by single-crystal X-ray diffraction. Two arene-ruthenium(II) complexes were tested as precatalysts for the transfer hydrogenation of acetophenone to give 1-phenyl ethanol.

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

37366-09-9, Name is Dichloro(benzene)ruthenium(II) dimer, molecular formula is C12H12Cl4Ru2, belongs to ruthenium-catalysts compound, is a common compound. In a patnet, once mentioned the new application about 37366-09-9, COA of Formula: C12H12Cl4Ru2

Organoruthenium antagonists of human A3 adenosine receptors

Human A3 adenosine receptor (hA3AR) is a membrane-bound G protein-coupled receptor implicated in a number of severe pathological conditions, including cancer, in which it acts as a potential therapeutic target. To derive structure-activity relationships on pyrazolo-triazolo-pyrimidine (PTP)-based A3AR antagonists, we developed a new class of organometallic inhibitors through replacement of the triazolo moiety with an organoruthenium fragment. The objective was to introduce by design structural diversity into the PTP scaffold in order to tune their binding efficacy toward the target receptor. These novel organoruthenium antagonists displayed good aquatic stability and moderate binding affinity toward the hA3 receptor in the low micromolar range. The assembly of these complexes through a template-driven approach with selective ligand replacement at the metal center to control their steric and receptor-binding properties is discussed. Scaffold design: A novel class of ruthenium(II)-arene complexes containing chelating N,N-pyrazolo-pyrimidine ligands was rationally developed to be selective antagonists of human A3 adenosine receptors based on the proven pyrazolo-triazolo-pyrimidine design (see figure). Copyright

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

37366-09-9, Name is Dichloro(benzene)ruthenium(II) dimer, molecular formula is C12H12Cl4Ru2, belongs to ruthenium-catalysts compound, is a common compound. In a patnet, once mentioned the new application about 37366-09-9, Application In Synthesis of Dichloro(benzene)ruthenium(II) dimer

Synthesis of cyclopentadienyl ruthenium(II) complexes containing tethered functionalities

The reaction of [C5H4(CH2)nX]Tl (1: n = 2, X = NMe2, OMe, CN; n = 3, X = NMe2) with [(eta6-C6H6)RuCl(mu-Cl)]2, 2, afforded the sandwich compounds [{eta5-C5H4(CH2)nX}Ru(eta6-C6H6)]PF6, 3, and [eta5-C5H4(CH2)nX]2Ru, 4. Photolytic cleavage of 3 in acetonitrile afforded the tethered products [{eta5:kappaN-C5H4(CH2)nX}Ru(CH3CN)2]PF6, 5.

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