Tag: M.W:400-500

Synthetic Route of 15746-57-3. Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 15746-57-3, Name is Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II). In a document type is Article, introducing its new discovery.

An efficient light-driven P450 BM3 biocatalyst

P450s are heme thiolate enzymes that catalyze the regio-and stereoselective functionalization of unactivated C-H bonds using molecular dioxygen and two electrons delivered by the reductase. We have developed hybrid P450 BM3 heme domains containing a covalently attached Ru(II) photosensitizer in order to circumvent the dependency on the reductase and perform P450 reactions upon visible light irradiation. A highly active hybrid enzyme with improved stability and a modified Ru(II) photosensitizer is able to catalyze the light-driven hydroxylation of lauric acid with total turnover numbers of 935 and initial reaction rate of 125 mol product/(mol enzyme/min).

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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, name: Dichloro(benzene)ruthenium(II) dimer

pi-Metalated [15]Paracyclophanes: Synthesis and binding to oxo-anions via anion-piinteractions

The host-guest properties of [15]paracyclophane are engendered by pi-metalation which exhibits fantastic regioselectivity towards the macrocyclic molecule. The synthesis and characterization of mono-, di- and tri-metalated [15]PCPs are discussed in this article and the anion binding behavior of the 3Ru-[15]PCP-II6+, one of the trimetalated [15]PCPs, driven by anion-piinteractions are comprehensively demonstrated in both solution and solid state. The anion binding properties of the 3Ru-[15]PCP-II6+ in solution are investigated by 1H NMR titrations, showing selectivity towards ReO4- both in organic and aqueous solutions. The binding mode is unexpected; the anionic guest stacks over the host rather than threads it. This selectivity for ReO4- is also supported by water-nitromethane extraction experiments which demonstrate that its partition from water into the organic phase by 3Ru-[15]PCP-II6+ is maintained to some extent in the presence of excess Cl-, SO42-, H2PO4-, NO3- and ClO4-

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.name: Dichloro(benzene)ruthenium(II) dimer. In my other articles, you can also check out more blogs about 37366-09-9

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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. 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)

Room-temperature photochromism in cis- and trans-[Ru(bpy) 2(dmso)2]2+

We report on phototriggered Ru-S ? Ru-O and thermal Ru-O ? Ru-S intramolecular linkage isomerizations in cis- and trans-[Ru(bpy) 2(dmso)2]2+. The cis complex features only S-bonded sulfoxides (cis-[S,S]), whereas the trans isomer is characterized by S- and O-bonded dmso ligands. Both cis-[S,S] and trans-[S,O] exhibit photochromism at room temperature in dmso solution and ionic liquid (IL). Rates of reaction in IL were monitored by UV-visible spectroscopy and are similar to those reported in dmso solution (kO?S ranges from ?10 -3 to 10-4 s-1). Cyclic voltammetric measurements of cis-[S,S] and trans-[S,O] are consistent with an electrochemically triggered linkage isomerism mechanism. While both cis-[S,S] and trans-[S,O] are photochromic at room temperature, neither complex is emissive. However, upon cooling to 77 K, cis-[S,S] exhibits LMCT (ligand-to-metal charge transfer) emission typical of many ruthenium polypyridine complexes. In contrast to cis-[S,S], trans-[S,O] does not show any detectable emission even at 77 K.

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

Electric Literature of 15746-57-3, 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. 15746-57-3, C20H16Cl2N4Ru. A document type is Article, introducing its new discovery.

A new polytopic bis-diazacrown-ether-polypyridine ligand and its complexes with Zn(II) salts and mononuclear and dendritic Ru(II) precursors. Synthesis, absorption spectra, redox behavior, and luminescence properties

The new polytopic receptor 1 containing two terpyridine, one phenanthroline, and two diazacrown-ether sites has been prepared using a modular approach. Such a new species contains several pieces of information in its structure which can be processed by different metal ions to give different supramolecular inorganic architectures. Actually, reaction of 1 with Zn(CH3COO)2 in methanol, and subsequent anion exchange, afforded the intramolecular ring-type [Zn(1)]2+ complex, which appears to be formed by a self-assembling reaction. A different synthetic approach, stepwise synthesis, allowed us to synthesize the two multicomponent compounds [(bpy)2Ru(mu-1)Ru(bpy)2]4+ (Ru2; bpy = 2,2?-bipyridine) and [{(bpy)2Ru(mu-2,3-dpp)})2Ru(mu-1)Ru{(mu-2,3-dpp) Ru(bpy)2}2])12+ (Ru6; 2,3-dpp = 2,3-bis(2-pyridyl)pyrazine). The absorption spectra and luminescence properties of 1 and [Zn(1)]2+ are dominated by pi ? pi* transitions and excited states. The absorption spectra of the ruthenium compounds are dominated by ligand-centered (LC) bands in the UV region and metal-to-ligand charge-transfer (MLCT) bands in the visible. The latter compounds undergo several reversible metal-centered oxidations and ligand-centered reductions in the potential window investigated (-2.0/+2.0 V versus SCE) and exhibit MLCT luminescence in both acetonitrile fluid solution at room temperature and in butyronitrile rigid matrix at 77 K. Both the redox and photophysical properties of Ru2 and Ru6 can be assigned to specific subunits of the multicomponent structures. The data indicate that the {Ru(bpy)2})2+ and the dendritic {Ru[(mu-2,3-dpp)Ru(bpy)2]2}6+ fragments appended to the polytopic 1 ligands behave as independent components of the multicomponent arrays.

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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.37366-09-9, Name is Dichloro(benzene)ruthenium(II) dimer, molecular formula is C12H12Cl4Ru2. In a Article£¬once mentioned of 37366-09-9, Recommanded Product: Dichloro(benzene)ruthenium(II) dimer

Coordination-induced condensation of [Ta6O19]8-: Synthesis and structure of [{(C6H6)Ru}2Ta6O19]4- and [{(C6H6)RuTa6O18}2(mu-O)]10-

Reaction of [(C6H6)RuCl2]2 and Na8[Ta6O19] gives two new hybrid organometallic POM complexes, Na10[{(C6H6)RuTa6O18}2(mu-O)]¡¤39.4H2O (Na10-1) and Na4(trans-[{(C6H6)Ru}2Ta6O19]¡¤20H2O (Na4-2). In both cases the half-sandwich fragments {(C6H6)Ru}2+ are coordinated as additional vertices to the {Ta3(mu2-O)3} triangles of the hexatantalate. According to NMR and ESI-MS data, the dimeric complex [{(C6H6)RuTa6O18}2(mu-O)]10- dissociates in water with the formation of monomeric [(C6H6)RuTa6O19]6- species (1a). X-ray structural characterization and aqueous speciation of the complexes by 13C, 1H, and DOSY NMR; ESI-MS; and capillary electrophoresis (CE) have been carried out.

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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. 37366-09-9, C12H12Cl4Ru2. A document type is Patent, introducing its new discovery., Quality Control of: Dichloro(benzene)ruthenium(II) dimer

INTERMEDIATES AND PROCESS FOR THE PRODUCTION OF 5-SUBSTITUTED TRICYCLIC BENZIMIDAZOLES

The invention relates to compoun ds of the formula 1-a and 1-b, in which R1, R2, R3, Ar and PG have the meanings as indicated in the description. These compounds are valuable intermediates for the preparation of pharmaceutically active compounds.

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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. Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 37366-09-9, Name is Dichloro(benzene)ruthenium(II) dimer. In a document type is Article, introducing its new discovery.

Bis(allyl) Ruthenium(IV) Complexes. Part 2. Ruthenium Complexes containing ?- and mu-Pyrazine and ?- and mu-Bis(diphenylphosphino)methane (dppm) Ligands. Crystal Structures of <2(mu-dppm)>*Me2CO*CH2Cl2 and …

Reaction of <2> 1 (C10H16 = 2,7-dimethyloctadienediyl) with one equivalent of pyrazine (pyz) or bis(diphenylphosphino)methane (dppm) leads to the formation of the neutral dimeric products <2(mu-pyz)> 2a and <2(mu-dppm)> 2b respectively.The neutral monomeric complexes 3a ad 3b are obtained by reacting 1 with two equivalents of pyz and dppm respectively.The mixed valence diruthenium complex <(mu-dppm)> 5 is readily obtained from the reaction of 3b with <2> 4.The X-ray structures of complex 2b (no.2), a = 11.914(1), b = 11.943(2), c = 19.524(2) Angstroem, alpha = 105.79(1), beta = 107.64(1), gamma = 91.01(1) deg, Z =2>, and complex 5 are reported.

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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, COA of Formula: C12H12Cl4Ru2.

Organometallic ionic liquids from half-sandwich Ru(II) complexes with various chelating ligands

Salts comprising of cationic half-sandwich Ru(II) complexes with various chelating ligands and the bis(trifluoromethanesulfonyl)amide anion (Tf2N-) were prepared. These salts can be represented as [(arene)RuCl(L-L)][Tf2N] (arene = C6Me5Bu, C6Me6, p-cymene, C6H6; L-L = 2-Py-CH2NHCMe2Et, 2-Py-CH=NC6H13, H13C6NHCH2CH2NHC6H13, Me2NCH2CH2SC4H9, Me2CN=CHCH=NCMe2). Two of the eight salts are liquids at room temperature (?20 C), while the other salts are solids with melting points of 60-130 C. Upon cooling from the melt, most salts exhibited glass transitions between -30 C and -5 C. The salts were found to catalyze the oxidation of cyclohexanol although decomposition occurred during the reaction. Crystal structures of related salts were also determined.

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£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. 37366-09-9, Name is Dichloro(benzene)ruthenium(II) dimer, molecular formula is C12H12Cl4Ru2. In a Article£¬once mentioned of 37366-09-9, category: ruthenium-catalysts

Benzimidazoles as ligands in the ruthenium-catalyzed enantioselective bifunctional hydrogenation of ketones

A series of Cl2Ru(diphosphane)L2 (II) complexes in which L = N1-alkylated benzimidazoles, bonding to the metal through nitrogen, have been synthesized and characterized. In the case of 1-methylbenzimidazole, the resulting complexes exist as statistical mixtures of all possible conformational isomers. When the size of the substituent on the benzimidazole was increased to complexes could be prepared that exist as a single diastereomer. All complexes possessing benzimidazole ligands bound to the ruthenium center are active for the mild and chemoselective hydrogenation of ketones in the presence of alkenes. Catalysts that exist as a single diastereomer, prepared with enantiomerically pure diphosphanes, catalyze the hydrogenation of prochiral ketones with moderate levels of enantioselectivity that are significantly improved relative to catalysts existing in several conformations.

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

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

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Organometallic ruthenium(II) scorpionate as topo IIalpha inhibitor; In vitro binding studies with DNA, HPLC analysis and its anticancer activity

New organoruthenium [(eta6-arene)RuII(L)Cl]Cl (1: arene = p-cymene, L = L1; 2: arene = p-cymene, L = L2; 3: arene = benzene, L = L1; 4: arene = benzene; L = L2; L1 = bis(3,5-dimethylpyrazolyl)parabenzoic acid, L2 = bis(3,5-dimethylpyrazolyl)metabenzoic acid) have been synthesized and characterized by analytical and spectroscopic methods. The molecular structure of [(eta6-p-cymene)RuCl(L1)]Cl (1) was determined by single crystal X-ray diffraction studies. Preliminary in vitro binding studies of 1-4 with CT DNA were carried out by employing various biophysical techniques which revealed their avid DNA binding via non-covalent binding mode viz; partial intercalation of the eta6-arene group as well as electrostatic surface interaction through one oxygen atom of the phosphate backbone of the DNA helix; however, complexes 1 and 3 display higher binding propensity in comparison to 2 and 4, as quantified by Kb. The interaction was further analysed by HPLC technique. The results of the cleavage experiments of pBR322 DNA with 1 and 3 displayed significantly good cleavage at 20-40 muM, following the oxidative pathway. These findings have revealed that the hydrophobic arene, and the chloride leaving group have important roles in the novel mechanism of recognition of DNA by (eta6-arene)ruthenium(II) complexes, and will aid the design of more effective anticancer complexes, as well as new site-specific DNA reagents. Furthermore, the anticancer activity of the complexes 1 and 3 on 15 cell lines of different histological origin has been studied. It has been observed that 1 exhibits higher cytotoxicity than 3, and the cells undergo apoptotic cell death.

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