Day: April 1, 2021

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: 10049-08-8

Surface and electrochemical characterization of electrodeposited PtRu alloys

PtRu alloys of different compositions were electrodeposited on Au. Twelve alloys between 0% and 100% Pt were characterized with surface sensitive spectroscopies (XPS, LEIS) after transfer from an electrochemical cell to an ultra high vacuum chamber without contact to air. The composition of the thus prepared alloys showed a linear dependence on the concentrations of the deposition solution, but was Pt-enriched both in the bulk and (even more so) at the surface. During the electrochemical reduction of the metal cations, sulfur from the supporting electrolyte 1N H2SO4 was found to be incorporated into the electrodes. Cyclic voltammetry was used for the determination of the electrocatalytic activity of the electrodes for the oxidation of carbon monoxide. The highest activity for this oxidation as measured by the (peak) potential of the CO oxidation cyclovoltammograms was found for a surface concentration of approx. 50% Pt. The asymmetry of this ‘activity curve’ (oxidation potential versus Pt surface concentration) is tentatively explained in terms of a surface structural phase separation.

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

Related Products of 37366-09-9, An article , which mentions 37366-09-9, molecular formula is C12H12Cl4Ru2. The compound – Dichloro(benzene)ruthenium(II) dimer played an important role in people’s production and life.

Targeting nucleus DNA with a cyclometalated dipyridophenazineruthenium(II) complex

Recently, coordinatively saturated and substitutionally inert Ru(II) complexes have been investigated as anticancer agents. Herein a cyclometalated Ru(II) complex, [Ru(bpy)(phpy)(dppz)]+, was found to be rapidly taken up by cancer cells, and nearly 90% of the complex accumulated in the nuclei of cancer cells after a 2 h incubation. The anticancer activity of this complex was screened against a panel of cancer cell lines. Remarkably, it exhibited IC50 values that were an order of magnitude lower than those of cisplatin. This complex also displayed potencies superior to those of cisplatin against 3D tumor spheroids. Further studies revealed that the high DNA binding affinity of [Ru(bpy)(phpy)(dppz)]+ resulted in effective disruption of the binding of transcription factor NF-kappaB to DNA sequences, thereby inhibiting cellular transcription and leading to irreversible cancer cell apoptosis. Our work provides new insights into understanding the biological interactions and anticancer molecular mechanisms of DNA-specific Ru(II) polypyridyl complexes.

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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, Safety of Ruthenium(III) chloride

Caged amino acids for visible-light photodelivery

We present a photocleavable protecting group based on ruthenium bipyridyl complexes and suitable for amino acid photodelivery. We discuss the photochemical properties of the caged glutamate, which is a major neurotransmitter in the CNS. The molar absorptivity for the caged glutamate at 450 nm is epsilon = 4200 M-1cm-1 and its quantum yield of photore-lease at 450 nm is ?PD = 0.035, which is about 17 times higher than that of the most active organic caged compound at this wavelength. Similar figures are obtained for other ?-amino acids. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Safety of Ruthenium(III) chloride. In my other articles, you can also check out more blogs about 10049-08-8

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, Formula: Cl3Ru

A novel family of Ru(II) polypyridyl complexes containing benzocrown ether for Na+ and Li+ probing

Two polypyridyl ligands 4?-(imidazo[4,5-f][1,10]phenanthrolin-2-yl)benzo-12-crown-4 (L1), 4?-(imidazo[4,5-f][1,10]phenanthrolin-2-yl)benzo-15-crown-5 (L2) and corresponding complexes [(bpy)2RuL1-2](PF6)2 (1, and 2) and [Ru(L1-2)3](PF6)2 (3, and 4) have been synthesized. These complexes show metal-to-ligand charge transfer absorption at 458-468 nm and emission at 585-592 nm. Binding ability of the complexes with Li+ and Na+ were investigated by fluorescence and UV-vis titration.

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

Reference of 246047-72-3. Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 246047-72-3, Name is (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium. In a document type is Article, introducing its new discovery.

Ruthenium alkylidenes: Fast initiators for olefin metathesis

A family of ruthenium alkylidene complexes, (H2IMes)RuCl 2(=CHR)(3-bromopyridine)2, where R = Me, Et, nPr, as well as the corresponding PCys complexes, (H2IMes)RuCl2(=CHR) (PCy3), have been prepared. The PCys alkylidene complexes exhibit much higher stoichiometric reactivity than does the analogous benzylidene complex, reflecting faster dissociation of PCy3 from the alkylidene complexes.

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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., category: ruthenium-catalysts

Electrochemical Reduction of Some Tris(beta-diketonato)ruthenium(III) Complexes in Acetonitrile and Interaction of the Reduced Anions with Lithium and Sodium Ions

In tetraethylammonium perchlorate-acetonitrile solution, (R1,R3= -CH3, -CF3, -C6H5, -C(CH3)3; R2= -H, -C6H5) was reversibly reduced at a dropping mercury electrode to the corresponding univalent anion. A linear relationship was found between the half-wave potential and the sum of the Hammett constants of the substituents of ligands. In some cases, the polarogram and the cyclic voltammogram were shifted to more positive potentials in the presence of lithium or sodium ions. This effect was explained quantitatively by the two-step association between the reduction product, -, and alkali metal ions. The association constants were calculated.The K2 values were appreciable and the K1 values were much larger than expected for a simple electrostatic interaction. Furthermore, the K1 values were linearly related to the sum of the Hammett constants of the substituents of the ligands. These results suggest the importance of the local charge distribution on the complex anions. In the presence of lithium ion, – forms Li which is insoluble in acetonitrile.

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

In an article, published in an article, once mentioned the application of 10049-08-8, Name is Ruthenium(III) chloride,molecular formula is Cl3Ru, is a conventional compound. this article was the specific content is as follows.Quality Control of: Ruthenium(III) chloride

Ru(iii)-based compounds with sulfur donor ligands: Synthesis, characterization, electrochemical behaviour and anticancer activity

In recent years, Ru(iii) complexes have emerged as a new class of effective anticancer agents against tumors that proved to be resistant to all other chemotherapeutic drugs currently in clinical use. To extend our previous studies on metal complexes containing sulfur-donor ligands, we report here on the synthesis and characterization, by means of several spectroscopic and analytical techniques, some [Ru(RSDT)3] and [Ru2(RSDT) 5]Cl complexes with dithiocarbamato ligands derived from methyl/ethyl/tert-butyl esters of sarcosine. Their electrochemical behaviour was also studied by cyclic voltammetry. All the complexes were tested for their cytotoxicity on a panel of human tumor cell lines showing highly significant antitumor activity. The chemical and biological properties of the newly synthesized complexes, were compared with those of [Ru(DMDT)3] and [Ru2(DMDT)5]Cl species (DMDT = N,N- dimethyldithiocarbamate) whose chemical (not biological) characterization has been already reported in literature.

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

Synthetic Route of 20759-14-2, An article , which mentions 20759-14-2, molecular formula is Cl3H2ORu. The compound – Ruthenium(III) chloride hydrate played an important role in people’s production and life.

Alkene oxidation catalyzed by a ruthenium-substituted heteropolyanion, SiRu(L)W11O39: The mechanism of the periodate mediated oxidative cleavage

A ruthenium-substituted heteropolyanion SiRu(H2O)W11O395- was synthesized and characterized. The hydrophobic quaternary ammonium salt of the heteropolyanion ((C6H13)4N)5SiRu III(H2O)W11O39 was used as a catalyst for the oxidation of alkenes with tert-butyl hydroperoxide, potassium persulfate, iodosobenzene, and sodium periodate as primary oxidants. Reactivity and selectivity were found to be dependent on the oxidant used; several different types of oxidation processes could be identified including allylic oxidation, epoxidation, and oxidative cleavage. Use of sodium periodate as oxidant enabled selective bond cleavage with aldehydes as the exclusive product. Different product selectivity and UV-vis and IR spectra of the ruthenium heteropoly compound in the presence of the various oxidants shows that unique mechanisms are operating in each case. A series of further experiments into the oxidation of styrene derivatives to benzaldehydes by sodium periodate including investigation of the reaction kinetics, substituent effects, and isotope incorporation enabled the formulation of a reaction mechanism. The reaction proceeds by interaction of the styrene with the catalyst forming a metallocyclooxetane which rearranges in the rate-determining step to a cyclic diester through two different transition states depending on the ring substituent. In the final step the cyclic diester decomposes yielding the cleavage products.

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

In an article, published in an article, once mentioned the application of 32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II),molecular formula is C41H35ClP2Ru, is a conventional compound. this article was the specific content is as follows.Computed Properties of C41H35ClP2Ru

Acetylcholine-like and trimethylglycine-like PTA (1,3,5-Triaza-7- phosphaadamantane) derivatives for the development of innovative Ru- and Pt-based therapeutic agents

The PTA N-alkyl derivatives (PTAC2H4OCOMe)X (1X: 1a, X = Br; 1b, X = I; 1c, X = PF6; 1d, X = BPh4), (PTACH 2COOEt)X (2X: 2a, X = Br; 2b, X = Cl; 2c, X = PF6), and (PTACH2CH2COOEt)X (3X: 3a, X = Br; 3c, X = PF 6), presenting all the functional groups of the natural cationic compounds acetylcholine or trimethylglycine combined with a P-donor site suitable for metal ion coordination, were prepared and characterized by NMR, ESI-MS, and elemental analysis. The X-ray crystal structures of 1d and 2c were determined. Ligands 1c, 2b, and 3c were coordinated to Pt(II) and Ru(II) to give the cationic complexes cis-[PtCl2(L)2]X2 and [RuCpCl(PPh3)(L)]X (L = 1, 2, 3, X = Cl or PF6) designed with a structure targeted for anticancer activity. The X-ray crystal structure of [CpRu(PPh3)(PTAC2H4OCOMe)Cl]PF6 (1cRu) was determined. The antiproliferative activity of the ligands and the complexes was evaluated on three human cancer cell lines.

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

In an article, published in an article, once mentioned the application of 37366-09-9, Name is Dichloro(benzene)ruthenium(II) dimer,molecular formula is C12H12Cl4Ru2, is a conventional compound. this article was the specific content is as follows.Safety of Dichloro(benzene)ruthenium(II) dimer

Design and application of a reflux modification for the synthesis of organometallic compounds using microwave dielectric loss heating effects

A commercially available microwave oven has been modified so that synthese involving the refluxing of organic solvents can be safely and conveniently undertaken.The application of this technique for accelerating the rates of reactions leading to the synthesis of some commonly used organometallic and coordination compounds are described.

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