Tag: M.W:400-500

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.37366-09-9, Name is Dichloro(benzene)ruthenium(II) dimer, molecular formula is C12H12Cl4Ru2. In a Article，once mentioned of 37366-09-9, name: Dichloro(benzene)ruthenium(II) dimer

The mononuclear complexes [(eta6-arene)Ru(ata)Cl]PF6{ata = 2-acetylthiazole azine; arene = C6H6[(1)PF6]; p-iPrC6H4Me [(2)PF6]; C6Me6[(3)PF6]}, [(eta5-C5Me5)M(ata)]PF6{M = Rh [(4)PF6]; Ir [(5)PF6]} and [(eta5-Cp)Ru(PPh3)2Cl] {eta5-Cp = eta5-C5H5[(6)PF6]; eta5-C5Me5(Cp*) [(7)PF6]; eta5-C9H7(indenyl); [(8)PF6]} have been synthesised from the reaction of 2-acetylthiazole azine (ata) and the corresponding dimers [(eta6-arene)Ru(mu-Cl)Cl]2, [(eta5-C5Me5)M(mu-Cl)Cl]2, and [(eta5-Cp)Ru(PPh3)2Cl], respectively. In addition to these complexes a hydrolysed product (9)PF6, was isolated from complex (4)PF6in the process of crystallization. All these complexes are isolated as hexafluorophosphate salts and characterized by IR, NMR, mass spectrometry and UV-Vis spectroscopy. The molecular structures of [2]PF6and [9]PF6have been established by single-crystal X-ray structure analyses.

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.name: Dichloro(benzene)ruthenium(II) dimer, you can also check out more blogs about37366-09-9

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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. Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 37366-09-9, Name is Dichloro(benzene)ruthenium(II) dimer

The reaction of <(Ru(eta6-C6H6)Cl2)2> with the sodium salt of (S)-N-(1-phenylethyl)salicylideneamine (HL-L) in CH2Cl2 led to a diastereomer mixture of (RRu,SC)- and (SRu,SC)- 1a and 1b, in a ratio of 86:14.Mediated by AgPF6 in acetone at -30 to -35 deg C, the chloride ligand in 1a/1b was substituted by 4-methylpyridine (4Me-py), 2-methylpyridine (2Me-py) or triphenylphosphane (PPh3) to give the two diastereomers 2a/2b of PF6, the pure diastereomer 3 of PF6 and the two diastereomers 4a/4b of PF6.At room temperature in <(2)H6>acetone, under equilibrium conditions, the diastereomer ratio 2a:2b was 67:33, 3 was diastereomerically pure and the ratio 4a:4b was 93.4:6.6.Variable-temperature 1H NMR spectroscopy of complexes 2a/2b and 4a/4b from -80 deg C to room temperature demonstrated configurational lability of the ruthenium configuration.Since equilibration occured during reaction and work-up, the ruthenium configuration was not retained in the substitution reactions.Diastereomer 2a was obtained diastereomerically pure by crystallisation.The diastereomers 4a and 4b were separated and examined by variable-temperature NMR spectroscopy.The crystal structures of the (RRu,SC) diastereomer of complex 1 and of the thermodynamically more stable (RRu,SC) diastereomers 2a and 4a” were determined by X-ray analysis.A conformational analysis based on the NMR spectroscopic results showed that two main factors govern the orientation of the 1-phenylethyl group relative to the moiety (L’=Cl, 4Me-py, 2Me-py or PPh3): (i) the face-on orientation of the phenyl substituent with respect to the ?-bonded aromatic benzene ligand and (ii) the steric demand of the unidentate ligands with respect to the 1-phenylethyl group.

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Reference：
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

The invention relates to a method for the production of a statin. Said method comprises the following steps: a) a compound of formula (II) is produced, wherein S1 represents a hydrogen atom or a hydroxyl protective group, S2 and S3 independently represent a hydroxyl protective group and R1 represents a hydrogen atom or a carboxyl protective group. Said compound of formula (II) is produced by stereoselective hydrogenation of a compound of formula (III) in order to form a compound of formula (II-a) and, optionally, by introducing a hydroxyl protective group. b) by lactonising the compound of formula II in order to form a compound of formula (I-a).

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.COA of Formula: C12H12Cl4Ru2. In my other articles, you can also check out more blogs about 37366-09-9

Reference：
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.Formula: C12H12Cl4Ru2

The invention discloses based on a four-methyl modifier of the skeleton of the phosphine compounds and intermediates thereof and preparation method and use thereof. The states phosphine ligand compound is having the general formula I or formula II the structure shown as the compound or the compound of the enantiomer, racemate or non-enantiomer. The phosphine to cheap and easy to obtain four methyl spiral dihydro yinyin diphenol as a raw material, by the general formula III as a key intermediate in the preparation route to obtain. The invention has developed a novel phosphine, can be used for catalytic organic reaction, in particular can be used as a chiral phosphine widely used for including the asymmetric hydrogenation and not to the aqueous system such as allylic alkylation in many asymmetric catalytic reaction, has the economic and practical and industrial application prospect. (by machine translation)

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Reference：
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.37366-09-9, Name is Dichloro(benzene)ruthenium(II) dimer, molecular formula is C12H12Cl4Ru2. In a Article，once mentioned of 37366-09-9, COA of Formula: C12H12Cl4Ru2

A new pathway for the preparation of mono-ruthenium (Ru)(iii)-substituted Keggin-type heteropolytungstates with an aqua ligand, [PW11O 39Ru(iii)(H2O)]4- (1a), [SiW11O 39Ru(iii)(H2O)]5- (1b) and [GeW 11O39Ru(iii)(H2O)]5- (1c), using [Ru(ii)(benzene)Cl2]2 as a Ru source was described. Compounds 1a-1c were prepared by reacting [XW11O39] n- (X = P, Si and Ge) with [Ru(ii)(benzene)Cl2] 2 under hydrothermal condition and were isolated as caesium salts. Ru(benzene)-supported heteropolytungstates, [PW11O 39{Ru(ii)(benzene)(H2O)}]5- (2a), [SiW 11O39{Ru(ii)(benzene)(H2O)}]6- (2b) and [GeW11O39{Ru(ii)(benzene)(H2O)}] 6- (2c), were first produced in the reaction media, and then transformed to 1a, 1b and 1c, respectively, under hydrothermal conditions. Calcination of Ru(benzene)-supported heteropolytungstates, 2a, 2b and 2c, in the solid state produced mixtures of 1a, 1b and 1c with CO (carbon monoxide)-coordinated complexes, [PW11O39Ru(ii)(CO)] 5- (4a), [SiW11O39Ru(ii)(CO)]6- (4b) and [GeW11O39Ru(ii)(CO)]6- (4c), respectively. From comparison of their catalytic activities in water oxidation reaction, it was indicated that ruthenium should be incorporated in the heteropolytungstate in order to promote catalytic activity.

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.COA of Formula: C12H12Cl4Ru2, you can also check out more blogs about37366-09-9

Reference：
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.15746-57-3, Name is Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II), molecular formula is C20H16Cl2N4Ru. In a Article，once mentioned of 15746-57-3, Computed Properties of C20H16Cl2N4Ru

A conjugated polymer-redox polymer hybrid based on the complexation of poly[2-(2-pyridyl)bibenzimidazole] with bis(2,2′-bipyridyl)Ru2+ has been prepared to take advantage of electronic communication between metal centers through the conjugated backbone. The existence of such communication is confirmed by the observation of an intervalence charge-transfer band in the near-IR spectrum of the Ru(III/II) mixed valence state. Electron transport studies by rotating disk voltammetry, dual (sandwich) electrode voltammetry, and impedance spectroscopy have yielded electron diffusion coefficients (De) of over 10-8 cm2 s-1 for the Ru(III/II) mixed valence state. D(e) in nonconjugated Ru(2,2′-bipyridyl)3(3+/2+)-type polymers is typically less than this by at least a factor of 10, indicating that electron transport in the new polymer is enhanced by communication of metal centers through the backbone. The redox potential of the Ru sites, and D(e), can be manipulated by changing the electron density on the polymer backbone via pH control of the degree of protonation of the imidazole moieties.

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.Computed Properties of C20H16Cl2N4Ru, you can also check out more blogs about15746-57-3

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

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 37366-09-9, Name is Dichloro(benzene)ruthenium(II) dimer, Computed Properties of C12H12Cl4Ru2.

Synthesis of an entirely new series of arene ruthenium complexes [Ru(eta6-C6H6)(L1)Cl]PF6, (1), [Ru(eta6-C10H14)(L1)Cl]PF6 (2), [Ru(eta6-C6H6)(L2)Cl]PF6 (3) and [Ru(eta6-C10H14)(L2)Cl]PF6 (4) involving 5-[2-(1H-pyrazol-1-yl)quinoline]-BODIPY (L1) and 5-[6-methoxy-2-(1H-pyrazol-1-yl)quinoline]-BODIPY (L2) was described. The ligands and complexes were thoroughly characterized by various physicochemical techniques and the structures of L1, 1 and 4 were determined by X-ray single crystal analyses. Photo-/ and electrochemical property, DNA binding, cytotoxicity, cellular uptake and apoptotic studies on 1-4 were performed by various methods, while singlet oxygen-mediated cytotoxicity via photo-irradiation by visible light was supported by 1,3-diphenylisobenzofuran titration studies. Binding of the complexes in the minor groove of CT-DNA via van der Waals forces and electrostatic interactions was affirmed by molecular docking studies. In vitro antiproliferative activity and photocytotoxicity of 1-4 were examined against the human cervical cancer cell line (HeLa) which clearly showed that these are extremely photocytotoxic under visible light (400-700 nm, 10 J cm?2; IC50 49.15, 1; 25.18, 2; 15.85, 3; 12.87, 4), less toxic in the dark (IC50 > 100 muM) and preferentially accumulate in the lysosome of the HeLa cells. Further, these complexes behave as a potential theranostic agent and their ability to kill cancer cells under visible light lies in the order 4 > 3 > 2 > 1.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Computed Properties of C12H12Cl4Ru2. In my other articles, you can also check out more blogs about 37366-09-9

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

Reference of 15746-57-3, An article , which mentions 15746-57-3, molecular formula is C20H16Cl2N4Ru. The compound – Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II) played an important role in people’s production and life.

The synthesis and characterization of Pt(II) (1 and 2) and Ru(II) arene (3 and 4) or polypyridine (5 and 6) complexes is described. With the aim of having a functional group to form bioconjugates, one uncoordinated carboxyl group has been introduced in all complexes. Some of the complexes were selected for their potential in photodynamic therapy (PDT). The molecular structures of complexes 2 and 5, as well as that of the sodium salt of the 4?-(4-carboxyphenyl)-2,2?:6?,2?-terpyridine ligand (cptpy), were determined by X-ray diffraction. Different techniques were used to evaluate the binding capacity to model DNA molecules, and MTT cytotoxicity assays were performed against four cell lines. Compounds 3, 4, and 5 showed little tendency to bind to DNA and exhibited poor biological activity. Compound 2 behaves as bonded to DNA probably through a covalent interaction, although its cytotoxicity was very low. Compound 1 and possibly 6, both of which contain a cptpy ligand, were able to intercalate with DNA, but toxicity was not observed for 6. However, compound 1 was active in all cell lines tested. Clonogenic assays and apoptosis induction studies were also performed on the PC-3 line for 1. The photodynamic behavior for complexes 1, 5, and 6 indicated that their nuclease activity was enhanced after irradiation at = 447 nm. The cell viability was significantly reduced only in the case of 5. The different behavior in the absence or presence of light makes complex 5 a potential prodrug of interest in PDT. Molecular docking studies followed by molecular dynamics simulations for 1 and the counterpart without the carboxyl group confirmed the experimental data that pointed to an intercalation mechanism. The cytotoxicity of 1 and the potential of 5 in PDT make them good candidates for subsequent conjugation, through the carboxyl group, to “selected peptides” which could facilitate the selective vectorization of the complex toward receptors that are overexpressed in neoplastic cell lines.

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Reference：
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.15746-57-3, Name is Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II), molecular formula is C20H16Cl2N4Ru. In a Article，once mentioned of 15746-57-3, category: ruthenium-catalysts

This work consists of two parts: (i) photophysical studies on the mononuclear Rh(III)-polypyridyl complexes (+, 3+, and 3+) and (ii) an examination of the intramolecular excited-state interactions in the ligand-bridged complex, <(bpy)2RuII-dpp-RhIII(bpy)2>5+ using luminescence and transient absorption spectral studies.Over the temperature range 77-293 K, the lowest excited state of + is metal-centered (MC or d-d).At 77 K, mixed ligand complexes 3+ and 3+ showstrong emission from ligand-centered (LC or ?-?*) and a very weak one from metal-centered excited states.Lifetime studies indicate the two low-lying excited states to be nonequilibrated in rigid alcoholic glasses.Only very weak (?,?*) emission is observed in fluid solutions (293 K).Distinct transient absorption following short laser pulse excitation allows establishment of spectra and lifetimes of these excited states in fluid solutions at ambient temperature.Visible light excitation of the mixed metal Rh-dpp-Ru complex leads to formation of the luminescent charge-transfer (CT) excited state of Ru(II)-polypyridyl based chromophore.The very short lifetime of this excited state species in fluid solutions as compared to model compounds can be caused by enhanced nonradiative decay (mechanism I) or by intramolecular electron-transfer or energy-transfer quenching (mechanisms II and III, respectively) involving an adjacent Rh(III)-polypyridyl unit.Analysis of the quenching pathways using the electrochemical and photophysical data on the mixed metal and relevant mononuclear complexes leads to the conclusion that the quenching is primarily by electron transfer (mechanism II).

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Reference：
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. 15746-57-3, Name is Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II), molecular formula is C20H16Cl2N4Ru. In a Article，once mentioned of 15746-57-3, SDS of cas: 15746-57-3

We synthesized neutral Ru(II) complexes cis-Ru(bpy)2(CN)2 (bpy = 2,2?-bipyridine), cis-Ru(dmb)2(CN)2 (dmb = 4,4?-dimethyl-2,2?-bipyridine), cis-Ru(dbb)2(CN)2 (dbb = 4,4?-di-tert-butyl-2,2?-bipyridine), and cis-Ru(phen)2(CN)2 (phen = 1,10-phenanthroline) and optically resolved them into respective enantiomers using high-performance liquid chromatography with a chiral column. The absolute configuration of enantiomer of cis-Ru(dbb)2(CN)2 was determined by an X-ray crystallography. Upon photoirradiation, the entire enantiomers of the complexes underwent the racemization with considerably slow rates (k = 1 × 10-6 to 1 × 10-5 s-1) and small quantum yields (Phi = 1 × 10-6 to 1 × 10-5). The photoracemization was concluded to proceed via a five-coordinate pyramidal intermediate with the base plane composed of Ru, bidentate polypyridine, and two cyanides and the axial ligand of monodentate polypyridine. We derived the equations for photoracemization rate and quantum yield by a kinetics analysis of the photoracemization reaction that depended on polypyridine ligand, solvent, temperature, wavelength and intensity of irradiation light, and emission lifetime. From the temperature-dependent photoracemization reaction, the energy gap between 3MLCT (metal-to-ligand charge transfer) and 3d-d? states was estimated as DeltaE = 4000-5000 cm-1, and the energy of invisible 3d-d? state was estimated to be ca. 20 500 cm-1, which was in good agreement with that of [Ru(bpy)3]2+.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.SDS of cas: 15746-57-3, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 15746-57-3, in my other articles.

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