Category: 15746-57-3

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, Product Details of 15746-57-3

The tetranuclear ruthenium complex {Ru[(tpphz)Ru(bpy)2]3}8+, where tpphz is tetrapyrido[3,2-a:2? ,3? -c:3? 2? -h:2? ,3? -j]phenazine, has been synthesized by reaction of [Ru(tpphz)3]2+ with [Ru(bpy)2Cl2] and by reaction of [Ru(bpy)2(tpphz)]2+ with [Ru(DMSO)4Cl2]. The large distance between the chiral centers allows full 1H NMR interpretation despite the mixture of eight stereoisomers. The tetranuclear complex was further characterized by electrospray mass spectrometry and by the wide-angle X-ray scattering technique, which confirmed the starburst geometry. The photophysical properties of the tetranuclear complex in acetonitrile were studied and compared with those of [Ru(tpphz)3]2+ (1 × 10-4 M acidic solution) and [(bpy)2Ru(tpphz)Ru(bpy)2]4+ model molecules. The tetranuclear complex gives rise to a single emission, attributed to metal-to-ligand charge-transfer states involving peripheral Ru centers and tpphz bridging ligands.

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

15746-57-3, Name is Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II), molecular formula is C20H16Cl2N4Ru, belongs to ruthenium-catalysts compound, is a common compound. In a patnet, once mentioned the new application about 15746-57-3, Quality Control of: Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II)

Disclosed is a process for production of an asymmetric binuclear metal complex represented by the general formula: (L1)2M1(BL)M2(L2)2(X)n wherein M1 and M2, which may be the same as or different from each other, represent a transition metal; L1 and L2, which are different from each other, represent a chelate ligand capable of multidentate coordination and two L1s may be different from each other and two L2s may be different from each other; BL represents a bridging ligand having at least two cyclic structures each containing a hetero atom, the hetero atoms contained in the cyclic structures being ligand atoms coordinating to M1 and M2; X represents a counter ion; and n is the number of counter ions needed to neutralize the charge of the complex. In the process, the binuclear metal complex is isolated by adjusting the pH of the solution containing the binuclear metal complex to a value higher than 2.5. The binuclear metal complex obtained may be used as a dye to produce a photoelectric conversion element and a photochemical battery having higher photoelectric conversion efficiency and higher durability.

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 15746-57-3

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, Recommanded Product: Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II)

The interest in therapeutical applications of carbon monoxide to physiological targets has led us to explore CO releasing molecules (CORM’s), particularly those that decomposes upon a specific stimuli, i.e. light irradiation. Here, we prepared a photoactivated, air stable and water soluble ruthenium(II) complex, cis-[Ru(bpy)2(SO3)(CO)], which releases carbon monoxide upon light irradiation. Indeed, many CORMs face very limited water solubility calling for improving this drawback. Photolysis of this complex using UV light in aqueous solution leads to high quantum yield of a single CO release. The release of CO was confirmed by myoglobin assay, and a careful monitoring of this photo-reaction was performed using HPLC. Our results showed it might serves as a carbon monoxide releasing moiety, which can be induced photochemically. Despite the lack of pharmacological and toxicological studies, these results are quite encouraging and might eventually lead this compound to become a relevant pharmacological agent.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.Recommanded Product: Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II), 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

Reference of 15746-57-3. Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 15746-57-3, Name is Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II)

The compounds [(acac)2RuIII(mu-H2L 2-)RuIII(acac)2] (rac, 1, and meso, 1?) and [(bpy)2RuII(mu-H2L?-) RuII(bpy)2](ClO4)3 (meso, [2](ClO4)3) have been structurally, magnetically, spectroelectrochemically, and computationally characterized (acac- = acetylacetonate, bpy = 2,2?-bipyridine, and H4L = 1,4-diamino-9,10-anthraquinone). The N,O;N?,O?-coordinated mu-H2Ln- forms two beta-ketiminato-type chelate rings, and 1 or 1? are connected via NH···O hydrogen bridges in the crystals. 1 exhibits a complex magnetic behavior, while [2](ClO4)3 is a radical species with mixed ligand/metal-based spin. The combination of redox noninnocent bridge (H 2L0 ? ? ? ?H2L 4-) and {(acac)2RuII} ? ?{(acac) 2RuIV} or {(bpy)2RuII} ? {(bpy)2RuIII} in 1/1? or 2 generates alternatives regarding the oxidation state formulations for the accessible redox states (1n and 2n), which have been assessed by UV-vis-NIR, EPR, and DFT/TD-DFT calculations. The experimental and theoretical studies suggest variable mixing of the frontier orbitals of the metals and the bridge, leading to the following most appropriate oxidation state combinations: [(acac) 2RuIII(mu-H2L?-)Ru III(acac)2]+ (1+) ? [(acac)2RuIII(mu-H2L2-)Ru III(acac)2] (1) ? [(acac)2Ru III(mu-H2L?3-)RuIII(acac) 2]-/[(acac)2RuIII(mu-H 2L2-)RuII(acac)2]- (1-) ? [(acac)2RuIII(mu-H 2L4-)RuIII(acac)2] 2-/[(acac)2RuII(mu-H2L 2-)RuII(acac)2]2- (12-) and [(bpy)2RuIII(mu-H2L?-) RuII(bpy)2]4+ (24+) ? [(bpy)2RuII(mu-H2L?-)Ru II(bpy)2]3+/[(bpy)2Ru II(mu-H2L2-)RuIII(bpy) 2]3+ (23+) ? [(bpy)2Ru II(mu-H2L2-)RuII(bpy) 2]2+ (22+). The favoring of RuIII by sigma-donating acac- and of RuII by the pi-accepting bpy coligands shifts the conceivable valence alternatives accordingly. Similarly, the introduction of the NH donor function in H2L n as compared to O causes a cathodic shift of redox potentials with corresponding consequences for the valence structure.

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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.

A chloride anion templation methodology is utilized in the construction of novel transition-metal rhenium(I) and ruthenium(II) bipyridyl appended [2]rotaxanes. 1H NMR spectroscopic titrations reveal the ability of the rotaxanes to selectively bind chloride over the more basic oxoanions, with the ruthenium(II) bipyridyl appended rotaxane strongly binding chloride in 30 % water. Photophysical investigations demonstrate the ability of the rotaxanes to sense anions in aqueous media, with chloride being selectively complexed, in general agreement with NMR spectroscopy determined anion binding data. Chloride anion templation is used to synthesise novel rhenium(I) and ruthenium(II) bipyridyl appended [2]rotaxanes (see figure). 1H NMR spectroscopic titrations reveal the rotaxanes are capable of binding anions in competitive aqueous solvent mixtures, with the ruthenium rotaxane strongly complexing chloride in 30 % water. Photophysical investigations demonstrate the ability of the rotaxanes to sense anions in aqueous solvent mixtures. Copyright

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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 15746-57-3, Name is Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II),molecular formula is C20H16Cl2N4Ru, is a conventional compound. this article was the specific content is as follows.Computed Properties of C20H16Cl2N4Ru

Two new complexes of Ru(II) with mixed ligands were prepared: [Ru(bpy)2smp](PF6) (1) and [Ru(phen)2smp](PF6) (2), in which smp = sulfamethoxypyridazine; bpy = 2,20-bipyridine; phen = 1,10-phenanthroline. The complexes have been characterized by elemental and conductivity analyses; infrared, NMR, and electrospray ionization mass spectroscopies; and X-ray diffraction of single crystal. Structural analyses reveal a distorted octahedral geometry around Ru(II) that is bound to two bpy (in 1) or two phen (in 2) via their two heterocyclic nitrogens and to two nitrogen atoms from sulfamethoxypyridazine-one of the methoxypyridazine ring and the sulfonamidic nitrogen, which is deprotonated. Both complexes inhibit the growth of chronic myelogenous leukemia cells. The interaction of the complexes with bovine serum albumin and DNA is described. DNA footprinting using an oligonucleotide as substrate showed the complexes’ preference for thymine base rich sites. It is worth notifying that the complexes interact with the Src homology SH3 domain of the Abl tyrosine kinase protein. Abl protein is involved in signal transduction and implicated in the development of chronic myelogenous leukemia. Nuclear magnetic resonance (NMR) studies of the interaction of complex 2 with the Abl-SH3 domain showed that the most affected residues were T79, G97, W99, and Y115.

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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

New heteroleptic dual anchored Ruthenium(II) sensitizer (RNPDA) was synthesized using 4-Nitro-phenylenediamine Schiff base as ligand (NPD-PC) and the complex was characterized by diverse spectroscopic techniques. The structure of NPD-PC was resolved by single crystal X-ray diffraction method. FT-IR spectra showed that the 4-Nitro-phenylenediamine ligand (NPD-PC) behaves as a bidentate N and N donors coordinate to ruthenium via the azomethine nitrogen and the amine nitrogen. Their optical and electrochemical properties were also investigated. The dye containing electron withdrawing group of pyridine and nitro group act as an anchoring unit and they evince sensitization behavior as well as fascinating interfacial phenomena on TiO2 substrates. The new ruthenium dye was used as photosensitizer for the DSSC applications which expressed overall photoconversion efficiency (eta) of 3.42%.

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.HPLC of Formula: 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

In an article, published in an article, once mentioned the application of 15746-57-3, Name is Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II),molecular formula is C20H16Cl2N4Ru, is a conventional compound. this article was the specific content is as follows.Recommanded Product: 15746-57-3

The synthesis and photophysical properties of a series of 5-(2,2?-bipyridyl)acetylene-extended dithieno[3,2-b:2?,3?-d] phospholes involving one and two of the latter units are reported. Their molecular scaffolds were found to show limited solubility that could, however, be addressed with the installation of solubilizing groups at the bipyridine unit or the dithienophosphole scaffold, respectively. The photoluminescence features of the new pi-conjugated oligomers could be manipulated through complexation to a variety transition metal species (Zn, Pt, and Ru), resulting in polarizable systems with intramolecular charge transfer and/or phosphorescence features, or redox-switching.

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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, Quality Control of: Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II)

The homochiral multinuclear Ru complexes of the oligomeric bibenzimidazoles were synthesized using Lambda-[Ru-(bpy)2(py)2][(-)-O, O?-dibenzoyl-L-tartrate]-12H2O as an enantiomerically pure building block. The complexations proceed with the retention of configuration to provide well-defined mononuclear, dinuclear, tetranuclear, and octanuclear Ru complexes successfully. The optical purity and the absolute configurations of the complexes were determined by NMR and circular dichroism spectrometry. The rare X-ray structure of a tetranuclear complex Lambda4-[(Ru(bpy) 2)4(bis(BiBzlm))](PF6)4 was resolved. The crystallographic analysis reveals that all the four Ru centers have Lambda octahedral configurations, with a Ru-Ru separation of 5.509 A across the bridging bibenzimidazole ligand, which maintains near coplanarity. The UV-vis spectroscopic and electrochemical properties of the homochiral multinuclear assemblies were studied, indicating weak electronic communications between the metal centers.

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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 15746-57-3, Name is Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II), Application In Synthesis of Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II).

We describe in this paper the properties of [RuII/III(bpy) 2ClL]+1/+2 and [RuII/III(bpy)2L 2]+2/+3. L = ditolyl-3-pyridylamine (dt3pya) is a redox active ligand related to triarylamines, which is very similar to 3-aminopyridine except for the reversible redox behavior. The monosubstituted complex shows a metal-to-ligand charge-transfer (MLCT) at 502 nm, and reversible waves in acetonitrile at E0(RuIII/II) = 1.07 V, E 0(L+/0) = 1.46 V (NHE). The disubstituted complex shows an MLCT at 461 nm, a photorelease of dt3pya with quantum yield of 0.11 at 473 nm, and two reversible one-electron overlapped waves at 1.39 V associated with one of the ligands (1.37 V) and RuIII/II (1.41 V). Further oxidation of the second ligand at 1.80 V forms a 2,2?-bipiridine derivative, in an irreversible reaction similar to dimerization of triphenylamine to yield tetraphenylbenzidine. In the dioxidized state, the spectroelectrochemistry of the disubstituted complex shows a ligand-to-ligand charge transfer at 1425 nm, with a transition moment of 1.25 A and an effective two-state coupling of 1200 cm-1. No charge transfer between ligands was observed when Ru was in a 2+ oxidation state. We propose that a superexchange process would be involved in ligand-metal-ligand charge transfer, when ligands and metals are engaged in complementary pi interactions, as in metal-ligand-metal complexes. Best orbital matching occurs when metallic donor fragments are combined with acceptor ligands and vice versa. In our case, RuIII bridge (an acceptor) and two dt3pya (donors, one of them being oxidized) made the complex a Robin-Day Class II system, while the RuII bridge (a donor, reduced) was not able to couple two dt3pya (also donors, one oxidized).

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Application In Synthesis of Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II). In my other articles, you can also check out more blogs about 15746-57-3

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