Day: April 14, 2021

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, Formula: C12H12Cl4Ru2

Facile entry to germanate and stannate complexes [(eta6-arene)RuCl(eta2-dppm)]+[ECl3]- (E = Ge, Sn) as potent anti-cancer agents

A series of arene Ru(II) salt complexes of the type [(eta6-arene)RuCl(eta2-dppm)]+[ECl3]- (arene = C6H6, p-cymene, 1,3,5-Me3C6H3; E = Ge, Sn) bearing trichlorogermanate and trichlorostannate anions are reported. Starting from the known complexes: [(eta6-C6H6)RuCl2(eta1-dppm)] (1), [(eta6-p-cymene)RuCl2(eta1-dppm)] (3) and the novel complex [(eta6-1,3,5-Me3C6H3)RuCl2(eta1-dppm)] (7) (dppm = 1,1-bis(diphenylphosphino)methane), reactions with SnCl2 or GeCl2(dioxane) respectively afforded, by halide abstraction at the ruthenium(II) centres in 1, 3 or 7 the salts: [(eta6-C6H6)RuCl(eta2-dppm)]+ SnCl3? (2), [(eta6-p-cymene)RuCl(eta2-dppm)]+ SnCl3? (4), [(eta6-C6H6)RuCl(eta2-dppm)]+ GeCl3? (5), [(eta6-p-cymene)RuCl(eta2-dppm)]+ GeCl3? (6), [(eta6-1,3,5-Me3C6H3)RuCl(eta2-dppm)]+ SnCl3? (8) and [(eta6-1,3,5-Me3C6H3)RuCl(eta2-dppm)]+ GeCl3? (9). The trichlorostannate complexes 2, 4 and 8 are extremely rare examples of ruthenium complexes bearing the SnCl3? counter anion, and the complexes 5, 6 and 9 are the first examples of ruthenium trichlorogermanate complexes to be reported. All compounds were isolated in high yields as air stable materials and were spectroscopically characterized by multinuclear NMR: (1H, 31P{1H}, 13C{1H}), Infra-red (IR), UV?Vis, and high resolution electrospray ionization mass spectrometry (HR-ESI-MS), the latter both in (+) and (?) mode. Additionally, single crystal X-ray diffraction analyses of salts 4 and 6 are reported, revealing pseudotetrahedral Ru(II) centres with eta6 bound p-cymene ligands and eta2-bound dppm ligands with statistical disorder on the ECl3- anions (E = Ge (6), Sn (4)). Density functional theory calculations (B3LYP with the basis set 6-31 + G(d,p) for H, C, P and Cl atoms; while for Ru, Ge, and Sn atoms DGDZVP basis set) are reported for salts 4 and 6 revealing localization of the LUMOs on the ruthenium-arene rings and some localization on the chloride atom. Finally, MTT in vitro cytotoxicity assays for the MCF-7 and MDA-MB-231 breast cancer cell lines are reported for all complexes and compared to cisplatin. All complexes show remarkable in vitro cytotoxic activity and most are considerably more cytotoxic than cisplatin in both breast cancer cell lines: IC50 values range from 2.25 muM (compound 2) to 5.97 muM (compound 9) (cisplatin = 5.74 muM) in MCF-7 cells; 2.20 muM (compound 2) to 6.39 muM (compound 5) (cisplatin = 13.98 muM) in MDA-MB-231. Moreover, when compared to non-malignant breast epithelial cells (MCF12A), all complexes exhibit promising selectivity indices (SI) with compound 5 having the highest SI in MCF-7 cells at 4.8; and compound 6 at 3.65 in MDA-MB-231, with most of the other compounds also being considerably more selective than cisplatin on both cell-lines (SI = 2.26 on MCF-7 and 0.93 on MDA-MB-231). A clonogenic assay was conducted for salts 5 and 6 and the results reveal that both compounds inhibited long-term (14 days) survival in both breast cancer cell lines tested indicating these drugs are very promising candidates for pre-clinical studies.

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

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

Synthetic Route of 14323-06-9, 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. 14323-06-9, C30H24Cl2N6Ru. A document type is Article, introducing its new discovery.

Two-photon spectroscopy of tungsten(0) arylisocyanides using nanosecond-pulsed excitation

The two-photon absorption (TPA) cross sections (delta) for tungsten(0) arylisocyanides (W(CNAr)6) were determined in the 800-1000 nm region using two-photon luminescence (TPL) spectroscopy. The complexes have high TPA cross sections, in the range 1000-2000 GM at 811.8 nm. In comparison, the cross section at 811.8 nm for tris-(2,2?-bipyridine)ruthenium(ii), [Ru(bpy)3]2+, is 7 GM. All measurements were performed using a nanosecond-pulsed laser system.

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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. 246047-72-3, Name is (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium, molecular formula is C46H65Cl2N2PRu. In a Article£¬once mentioned of 246047-72-3, Formula: C46H65Cl2N2PRu

Total synthesis of haminol A: An analysis of vinylpyridine metathesis reactivity

The total synthesis of haminol A has been completed featuring a masked-alkene metathesis reaction followed by bis-acyloxysulfone elimination to install the 1,3,8-triene subunit. During the course of our synthesis, the metathesis reactivity of 3-vinylpyridine was evaluated and our data suggest the rapid formation of a ruthenium pyridylalkylidene that no longer participates in productive metathesis. A chemotaxis assay using Caenorhabditis elegans demonstrated that haminol A produced an avoidance response from this organism.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Formula: C46H65Cl2N2PRu. In my other articles, you can also check out more blogs about 246047-72-3

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., Product Details of 10049-08-8

Complex heterobimetallic salts derived from 1-ethoxycarbonyl-1- cyanoethylene-2,2-dithiolatodioxouranate(VI) ion: Preparation and properties

The reaction of K2[UO2(ecda)2] (generated in situ) with cationic complexes [M(N-N)3]X2 [M = Fe(II), Ru(II), Co(II), Ni(II), Cu(II), Zn(II) or Cd(II); N-N = 2,2′-dipyridyl (dipy), 1,10-phenanthroline (phen) or ethylenediamine (en); ecda2- = 1-ethoxycarbonyl-1-cyanoethylene-2,2- dithiolate; X = Cl-, NO3- or 1/2 SO42-] and n-Pr4NI in 1:1/1:2 molar ratio afforded the complex bimetallic salts [M(N-N)3][UO2(ecda)2] and the complex salt [n-Pr4N]2[UO2(ecda)2], that have been characterized on the basis of elemental analyses, molar conductance and magnetic susceptibility measurements, electrochemical and relevant spectroscopic studies. UV-visible absorption spectra in DMSO support the existence of ion-pair charge transfer (IPCT) absorption band which occurs due to charge transfer interaction between [Fe(phen)3/Ru(dipy)3]2+ and [UO2(ecda)2]2+ion. Temperature dependent (303-373 K) pressed pellet conductivities of the complexes have been studied. All the bimetallic salts of this series comprise discrete tris- chelated octahedral cations [M(N-N)3]2+ and his-chelated dioxouranium(-V1) anion, [UO2(ecda)2]2- with no sign of ligand exchange reaction in solution during the course of their formation.

Interested yet? Keep reading other articles of 10049-08-8!, Product Details of 10049-08-8

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

Tetradentate Schiff base ligands and their complexes: Synthesis, structural characterization, thermal, electrochemical and alkane oxidation

Three Schiff base ligands (H2L1-H2L 3) with N2O2 donor sites were synthesized by condensation of 1,5-diaminonapthalene with benzaldehyde derivatives. A series of Cu(II), Co(II), Ni(II), Mn(II) and Cr(III) complexes were prepared and characterized by spectroscopic and analytical methods. Thermal, electrochemical and alkane oxidation reactions of the ligands and their metal complexes were investigated. Extensive application of 1D (1H, 13C NMR) and 2D (COSY, HETCOR, HMBC and TOSCY) NMR techniques were used to characterize the structures of the ligands and establish the 1H and 13C resonance assignments of the three ligands. Ligands H2L1 and H2L3 were obtained as single crystals from THF solution and characterized by X-ray diffraction. Both molecules are centrosymmetric and asymmetric unit contains one half of the molecule. Catalytic alkane oxidation reactions with the transition metal complexes investigated using cyclohexane and cyclooctane as substrates. The Cu(II) and Cr(III) complexes showed good catalytic activity in the oxidation of cyclohexane and cyclooctane to desired oxidized products. Electrochemical and thermal properties of the compounds were also investigated.

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

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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, Safety of Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II)

Symmetric and asymmetric coupling of pyridylpyrimidine for the synthesis of polynucleating ligands

A convenient synthetic approach to build up new polynucleating ligands is presented. Symmetric and asymmetric pyridylpyrimidine dimers are produced by radical anion coupling and nucleophilic addition, respectively. A diruthenium complex of the asymmetric ligand was synthesised and characterised by cyclic voltammetry, luminescence and99Ru NMR spectroscopy. Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002.

The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.I hope my blog about 15746-57-3 is helpful to your research., Safety of Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II)

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. 32993-05-8, C41H35ClP2Ru. A document type is Article, introducing its new discovery., Product Details of 32993-05-8

Syntheses and molecular structures of group 8 benzonitrile complexes

The molecular structures of eight nitrile complexes of general form [M(NCC6H4R-4)(L2)Cp?]PF6 [M = Fe, Ru; L2 = dppe, (PPh3)2; Cp? = Cp, Cp*] are reported and discussed in terms of the nature of the M-N interaction. Data are consistent with a predominantly sigma-interaction, similar to that found in related acetylide complexes, with little evidence for metal to nitrile pi-back bonding interactions.

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

Reference of 172222-30-9, 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. 172222-30-9, C43H72Cl2P2Ru. A document type is Article, introducing its new discovery.

Ruthenium-catalyzed ring-closing metathesis on alkene-tethered Fischer carbene complexes

Alkene-terminated tethers have been assembled around a Fischer carbene moiety by C-alkylation of the alpha-carbon or N-alkylation of amino carbene complexes by a phase-transfer catalyzed procedure developed in this laboratory. Small or medium-sized, pendant, fused or spirocyclic rings have then been formed by ring-closing metathesis involving such substrates in good to excellent yields. By engaging one of the allyl tethers of a diallylamino group as a ligand for the metal center, it is possible to dictate the direction of cyclization by metathesis.

If you are hungry for even more, make sure to check my other article about 172222-30-9. Reference of 172222-30-9

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. 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, COA of Formula: C20H16Cl2N4Ru

Ruthenium(II) bipyridyl complexes as photolabile caging groups for amines

The synthesis and characterization of a series of ruthenium bis(bipyridine) complexes where the inorganic moiety acts as a photolabile protecting group is described. Complexes of the type [Ru(bpy)2L2]+ where bpy = 2,2?-bipyridine and L = butylamine, gamma-aminobutyric acid, tyramine, tryptamine, and serotonin were studied by nuclear magnetic resonance, cyclic voltammetry, and electronic absorption spectroscopy. In all cases, ligands are coordinated by the amine group. The complexes are stable in water for several days and deliver one molecule of ligand upon irradiation with visible light (450 nm). These properties make them suitable for their use as biological caged compounds.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.COA of Formula: C20H16Cl2N4Ru, 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£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.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, Application In Synthesis of Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II)

[Ru(bpy)2(dppz-NH2)]2+ complex (dppz-NH2: 7-Amino-dipyrido [3,2-a : 2′,3′-c]phenazine) as a useful photosensitizing unit for the construction of photoinduced energy transfer systems

7-Amino-dipyrido[3,2-a:2′,3′-c]phenazine (dppz-NH2) has a diimine coordination site, a rigid and extended pi conjugation system, and a reactive amino group within the molecule, and [Ru(bpy)2(dppz-NH2)]2+ was synthesized as a useful photosensitizing unit for the construction of photoinduced energy-transfer systems. Anthraquinone, anthracene, and [Os(bpy)3]2+ derivatives having a carboxylic acid function were used as energy-accepting units, and were successfully connected to [Ru(bpy)2(dppz-NH2)]2+ through an amide bond. Electronic spectral and electrochemical studies of the resultant complexes were carried out, and it was shown that effective excited electron or energy transfer took place from the Ru(II) polypyridyl center to these units. In the case of the heterodinuclear Ru(II)/Os(II) complex, emission from the Ru(II) polypyridyl center was effectively quenched and that from the Os(II) polypyridyl center was increased compared to the reference Os(II) polyimine complex. The rate of energy transfer from the Ru(II) to the Os(II) polypyridyl, center through the dppz-amide connector was estimated to be 1.0 x 108 s-1 in acetonitrile.

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.Application In Synthesis of Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II), you can also check out more blogs about15746-57-3

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