Category: 10049-08-8

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. 10049-08-8, Name is Ruthenium(III) chloride, molecular formula is Cl3Ru. In a Article£¬once mentioned of 10049-08-8, HPLC of Formula: Cl3Ru

Selective oxo-functionalisation of C-H bond with t-BuOOH catalysed by [RuIII(amp)(bipy)Cl] complex (H2amp=N-(hydroxyphenyl)salicyldimine; Bipy=2,2?bipyridyl)

[RuIII(amp)(bipy)Cl] complex (1) has been synthesised and characterised by physico-chemical methods. Complex-1 is found to be an effective catalyst in the oxidation of cyclohexene to cyclohexene-1-ol, cyclohexane to cyclohexanol and cyclohexanone, stilbenes to stilbene epoxides and benzaldehyde upon reaction with tert-butylhydroperoxide (t-BuOOH). A high valent Ru(V)-oxo species formed as a catalytic intermediate in the reaction of complex-1 with t-BuOOH is proposed as the source of oxygen in the oxidised product. Kinetic data suggests that the formation Ru(V)-oxo is substitution controlled. The results of the product distribution in the present investigation clearly indicate the high electrophilic nature of Ru=O bond in [RuV(amp)(bipy)O]+ intermediate complex which leads to high affinity for atomic hydrogen/hydride abstraction. Elsevier Science Ltd.

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

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. 10049-08-8, Cl3Ru. A document type is Article, introducing its new discovery., Safety of Ruthenium(III) chloride

5,10,15,20-Tetrakis[4?-(terpyridinyl)phenyl]porphyrin and its Ruii complexes: Synthesis, photovoltaic properties, and self-assembled morphology

A novel tetrakis(terpyridinyl)porphyrin derivative and its RuII complexes were efficiently synthesized using microwave enhanced synthesis and shown to possess photovoltaic properties. Transmission electron microscopy and selected area electron diffraction were used to investigate its nanowire self-assembly. The Royal Society of Chemistry.

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Reference£º
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.10049-08-8, Name is Ruthenium(III) chloride, molecular formula is Cl3Ru. In a Article£¬once mentioned of 10049-08-8, Safety of Ruthenium(III) chloride

Direct regeneration of NADH on a ruthenium modified glassy carbon electrode

The regeneration of NADH in a batch electrochemical reactor using a ruthenium modified glassy carbon electrode (RuGC) has been investigated. The information on the structure of the electrode/electrolyte interface in the presence of NAD+ in the solution, the kinetics of NAD+ reduction, and the batch-electrolysis NADH regeneration has been obtained using electrochemical techniques of dc linear potential (LP) and constant potential (CA) polarization, ac differential capacitance (DC), and electrochemical impedance spectroscopy (EIS). It has been shown that the modification of GC by a sub-monolayer of Ru can provide an electrode surface capable of reducing NAD+ directly to NADH at a high yield of enzymatically active 1,4-NADH (96%). From the electrochemical point of view, the reaction is irreversible and occurs at high cathodic overpotentials, where the reaction rate is controlled by the surface diffusion of electroactive species. EIS measurements have shown that the electrode/electrolyte interface and the corresponding charge- and mass-transfer processes can be described by an electrical equivalent circuit composed of two time constants in parallel, with the additional contribution of a mass-transport Warburg impedance element. The time constant recorded at higher frequencies represents the response of a GC part of the electrode surface, while the lower-frequency time constant can be related to the response of Ru sites on the electrode surface. It has been determined that the NAD+ reduction reaction is of first order with respect to NAD+. The calculated apparent heterogeneous reaction rate constant values are rather low, which is due to the slow mass-transport of electroactive species at the electrode surface. The kinetic analysis has demonstrated that a very good agreement between the apparent heterogeneous reaction rate constant values calculated using three different experimental techniques is obtained.

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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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Preparation and Structure of Tetraphenylphosphonium Aquatetrachlorothionitrosylruthenate,

The preparation and structural characterization of are reported.Reaction of S3N3Cl3 with ruthenium trichloride yielded a brown crude product .The salt was prepared by the addition of PPh4Cl to an aqueous solution of followed by recrystallization of the brown precipitate from water-methanol (1:1).The crystals are triclinic, space group <*>, with unit-cell dimensions a = 10.173(5), b = 11.756(4), c = 12.793(10) Angstroem, alpha = 66.24(6), beta = 78.89(6), gamma = 72.58(4) deg, and Z = 2 (110 +/- 2K).The – anion forms an octahedron with H2O trans to the thionitrosyl group.The Ru-N-S group is approximately linear <170.9(3) deg> with Ru-N and N-S bond distances of 1.729(4) and 1.504(4) Angstroem, respectively.

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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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Interaction of ruthenium(III) chloride with bis(3,5-dimethylpyrazol-1-yl) methane oxyanions, potential kappa3 -N,N,O scorpionates

When RuCl3 was set to react with both bis(3,5-dimethylpyrazol-1- yl)acetate (bdmpza) and bis(3,5-dimethylpyrazol-1-yl)methane sulfonate (bdmpzsa) new ruthenium(II) complexes were obtained. The reduction of ruthenium(III) was studied by the NMR Evans method and spectrophotometrically, for 1:1 (Ru:L) molar ratios. Using the Evans method pseudo first-order constants of 2.5¡Á10-3 s-1 (bdmpzsa) and 3.9¡Á10 -3 s-1 (bdmpza) were obtained in DMSO-d6 (2% t-butanol) solutions. Spectrophotometrically the corresponding constants were also calculated: 1.1¡Á10-3 s-1 for bdmpzsa, and 1.6¡Á10-3 s-1, for bdmpza. Both ligands behave as kappa3-N,N,O scorpionates but with a weak oxyanionic coordination to the metal, susceptible to be substituted with NEt3 for a 1:1 molar ratio.

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

10049-08-8, Name is Ruthenium(III) chloride, molecular formula is Cl3Ru, belongs to ruthenium-catalysts compound, is a common compound. In a patnet, once mentioned the new application about 10049-08-8, Computed Properties of Cl3Ru

PLATINUM METAL COMPLEXES OF CYCLOALKYL DITHIOCARBAMATES

The complexes of ruthenium(III), rhodium(III), palladium(II), osmium(IV), osmium(III), iridium(III) and platinum(II) with sodium salts of cyclopentyl (NaCPD) and cycloheptyl (NaCHD) dithiocarbamic acids have been synthesized and characterized on the basis of elemental analyses, conductance measurements, spectral (electronic and vibrational) and magnetic moment data.Various ligand field (10 Dq), nephelauxetic (B, C and beta) and single electron repulsion parameters (Delta1, Delta2 and Delta3) have also been calculated.The nephelauxetic parameters are indicative of strong covalency in the metal ligand bond.

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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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Sensitized photoisomerization of cis-stilbazolium ions intercalated in saponite clay layers

Sensitized photoisomerization of the cis-stilbazolium ion 1 by ruthenium tris-2,2?-bipyridine [Ru(bpy)32+] was studied in saponite clay layers. The reaction yield was 100 times higher than the reaction yield in a homogeneous solution. The Stern-Volmer constant of the luminescence of Ru(bpy)32+ by 1 was 3.4 ¡Á 105 dm3 mol-1, which made the quenching rate constant faster than the diffusion limiting rate. The fast quenching rate implies a static quenching by 1 in the vicinity of Ru(bpy)32+. The reaction efficiency showed a maximum when 70 mol% of 1 was intercalated on the basis of the cation exchange capacity (CEC), where the ruthenium complex and 1 are suitably arranged in the saponite layer for effective photoelectron transfer and subsequent electron relay.

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

10049-08-8, Name is Ruthenium(III) chloride, molecular formula is Cl3Ru, belongs to ruthenium-catalysts compound, is a common compound. In a patnet, once mentioned the new application about 10049-08-8, Recommanded Product: Ruthenium(III) chloride

Ruthenium complexes with N(SPR2)2- (R = Ph or Pri)

Reactions of [Ru(PPh3)3Cl2], [Ru(CO)2Cl2]x, or [Ru(dmso)4Cl2] (dmso = dimethyl sulfoxide) with KLR [LR = N(SPR2)2, R = Ph or Pri] afforded [Ru(LR)2(PPh3)] (R = Ph 1 or Pri 2), cis-[Ru(LR)2(CO)2] (L = Ph 3 or Pri 4), or cis-[Ru(LPh)2(dmso)2] 5, respectively. The crystal structures of complexes 1 and 2 have been determined. They show weak agostic interaction between Ru and LR with calculated Ru … H-C separations of 3.37 and 2.91 A, respectively. The Ru-P and average Ru-S distances in 1 are 2.218(1) and 2.400 A, respectively. The corresponding bond lengths for 2 are 2.210(2) and 2.404 A. Treatment of 2 with ButNC afforded trans-[Ru(LPr)2(ButNC)2] 6, the average Ru-S and Ru-C distances of which are 2.453 and 1.990(3) A, respectively. Reaction of RuCl3 with KLR in methanol gave the homoleptic complexes [Ru(LR)3] (L = Ph 7 or Pri 8). The average Ru-S distance and S-Ru-S angle in 7 are 2.414 A and 97.41, respectively. While complex 1 reacts with pyridine (py) to give [Ru(LPh)2(PPh3)(py)] 9, reaction of 2 with py led to isolation of structurally characterised [Ru(LPr)2(SO)] 10. The Ru-S(O) and S-O bond lengths in 10 are 2.0563(11) and 1.447(3) A, respectively, the Ru-S-O angle being 125.5(2). Treatment of 1 with SO2 afforded structurally characterised cis-[Ru(LPh)2(PPh3)(SO2)] 11. The SO2 ligand binds to Ru in 11 in a eta1-S mode and the Ru-S(O) distance is 2.140(4) A. Complex 2 reacted with SO2 to give the mu-sulfato-bridged ruthenium(in) dimer [{Ru(LPr)(PPh3)}2(mu-SO4) 2] 12, which has been characterised by X-ray crystallography. The Ru-P and average Ru-S and Ru-O distances in 12 are 2.294(2), 2.321 and 2.133 A, respectively. Complex 1 is capable of catalysing hydrogenation of styrene in the presence of Et3N presumably via a ruthenium hydride intermediate. The Royal Society of Chemistry 2000.

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Reference£º
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.10049-08-8, Name is Ruthenium(III) chloride, molecular formula is Cl3Ru. In a Article£¬once mentioned of 10049-08-8, Recommanded Product: Ruthenium(III) chloride

Controlled microwave synthesis of RuII synthons and chromophores relevant to solar energy conversion

Here we describe the efficient high yield atmospheric pressure microwave-assisted synthesis for seven distinct RuII coordination complexes relevant to solar energy conversion schemes and dye sensitized solar cells. In all instances, the reaction times have been markedly shortened, concomitant with higher yields with little or no need for subsequent purification and several multi-step reactions proceeded flawlessly in a single pot. Importantly, we observed no evidence for the decarboxylation of the essential metal oxide surface-anchoring 4,4?-diethylester-2,2?-bipyridine or 4,4?-dicarboxy-2,2?-bipyridine ligands as long as open reaction vessel conditions were utilized; these functionalities are not tolerant to sealed microwave reaction (superheated solvent/pressurized) conditions. The combined results suggest that microwave-assisted chemistry is indeed a valuable tool as far as RuII coordination chemistry is concerned and can likely be applied in the combinatorial pursuit of new dyes bearing sensitive functionalities.

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Reference£º
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.10049-08-8, Name is Ruthenium(III) chloride, molecular formula is Cl3Ru. In a Article£¬once mentioned of 10049-08-8, category: ruthenium-catalysts

Preparation of ammonia borane in high yield and purity, methanolysis, and regeneration

Ammonia borane (AB) is emerging as a promising solid hydrogen carrier, particularly for power generation in portable devices that employ proton-exchange membrane fuel cells. A preparative-scale synthesis of AB from sodium borohydride and ammonium salts in high yields (?95%) and very high purity (?98%) has been described. The first systematic study of a transitional metal-catalyzed alcoholysis of AB, comparison of the methanolysis to the hydrolysis of AB, and regeneration of AB from ammonium tetramethoxyborate also has been described.

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