Tag: M.W:700-800

Application of 92361-49-4. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 92361-49-4, Name is Chloro(pentamethylcyclopentadienyl)bis(triphenylphosphine)ruthenium(II). In a document type is Article, introducing its new discovery.

A synthesis of neutral vinylideneruthenium complexes [RuCl(C=CHR)(PPh3)(eta-C5Me5)] (R = Ph, But or SiMe3) from [RuCl(PPh3)2(eta-C5Me5)] and 1-alkynes has been developed. This takes advantage of the presence of two bulky ligands (PPh3 and C5Me5), which results in displacement of one PPh3 ligand (rather than chloride) and concomitant isomerisation of the 1-alkyne to vinylidene ligands. The vinylidene complexes undergo facile loss of HCl on treatment with NaOMe in the presence of a 2e donor ligand (L) to give the neutral acetyhde complexes [Ru(C?CR)L(PPh3)(eta-C5Me5)] [R = Ph, L = PPh3, CO, O2 or dppm-P; R = But, L = PPh3, CO, C2H4, dppe-P, C2(PPh2)2-P, S2, P(OMe)3 or AsPh3]; the complexes [Ru(C?CBut)(L2)(eta-C5Me5)] [L2 = dppm or PPh2CH= CHPPh2] and [Ru(S2CC?CBut)(PPh3)(eta-C 5Me5)] were also obtained. Crystal structure determinations were carried out on eleven of the complexes.

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

Application of 32993-05-8. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II). In a document type is Article, introducing its new discovery.

Complexes of the types cis-L2PtCl2 (L = PPh3, 1/2 dppe) and cpRu(PPh3)2Cl react with 1-alkyne-1-thiolates to give the products trans-(Ph3P)2Pt(S-C<*>C-Ph)2 (5), dppePt(S-C<*>C-Ph)2 (6) and CpRu(PPh3)2(S-C<*>C-Ph) (7), respectively.CpRu(PPh3)(CO)(S-C<*>C-Ph) (8) is formed by reaction of 7 in an atmosphere of CO.The 2-propene-1-thiolato complexes dppePt(S-CH2-CH=CH2)2 (9), CpFe(CO)2(S-CH2-CH=CH2) (12) and CpFe(PPh3)(CO)(S-CH2-CH=CH2) (13) are obtained from dppePtCl2, CpFe(CO)2I, CpFe(PPh3)(CO)I and lithium or sodium 2-propene-1-thiolate.The complexes are characterized by IR and (1)H, (13)C and (31)P NMR spectroscopy.Keywords: 1-Alkyne-1-thiolato, 2-Propene-1-thiolato, Metal Complexes

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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.32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II), molecular formula is C41H35ClP2Ru. In a Article，once mentioned of 32993-05-8, Application In Synthesis of Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II)

Ruthenium allenylidene complexes with carbon-rich polyaromatic moieties have been synthesized by using [RuCl(eta5-C5H5)(PPh3)2] (eta5-C5H5 = cyclopentadienyl) as a precursor and the propargyl alcohols 10-ethynyl-10-hydroxyanthracen-9-one (ACO), 13-ethynyl-13-hydroxypentacen-6-one (PCO), 1-phenyl-1-(pyren-1-yl)prop-2-yn-1-ol (PyrPh), 9-ethynyl-9H-fluoren-9-ol (FN) and 6-ethynyl-6H-benzo[cd]pyren-6-ol (BPyr) as ligands. The resulting cationic allenylidene complexes, [Ru(eta5-C5H5)(CC(AO))(PPh3)2]PF6 (1), [Ru(eta5-C5H5)(CC(PCO))(PPh3)2]PF6 (2), [Ru(eta5-C5H5)(CC(PyrPh))(PPh3)2]PF6 (3), [Ru(eta5-C5H5)(CC(FN))(PPh3)2]PF6 (4), and [Ru(eta5-C5H5)(CC(BPyr))(PPh3)2]PF6 (5) show interesting intermolecular pi-interactions in the solid-state structure as well as solution state complexation with pyrene (documented by Job’s plots experiments). CV data indicate possible Ru(ii)/Ru(iii) oxidation, as well as the potential reduction of the carbon-rich allenylidene moiety.

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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. 32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II), molecular formula is C41H35ClP2Ru. In a Article，once mentioned of 32993-05-8, category: ruthenium-catalysts

Complexes of the formula [(N-N)Cu(AsPh3)CN] (N-N=2,2?-bipyridine, 1,10-phenanthroline) have been synthesized. Ru(bpy)2Cl2.2H2O and [(eta5-cp)Ru(PPh3)2Cl] react with [(N-N)Cu(AsPh3)CN] to give cyano-bridged compounds. IR spectral studies in the low frequency region (700-50 cm-1) and 4000-400 cm-1 region reveal cyano bridging in the complexes. Luminescence measurements suggest oxidation of metal centres (CuI-CuII and RuII-RuIII) on excitation at a charge transfer band. This has been substantiated with electrochemical studies of complexes which exhibit quasi-reversible reductions viz. RuIIIRuII and CuIICuI. The deposition of metallic copper is also observed at a potential of -1.55 V. Based on these data, a mechanism for photo-redox reaction of complexes has been presented. The properties of these bimetallic complexes are compared with those of parent complexes.

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

Electric Literature of 32993-05-8, 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.

The structure of the BF4 complex was determined by X-ray diffraction techniques: monoclinic space group P21/c, a=14.662(9), b=18.515(7), c=15.368(6) Angstroem, beta=101.88(5) deg, V=4082(6) Angstroem3, Z=4, R=0.049, Rw=0.057.The Ru is attached to two triphenylphosphine ligands, a cyclopentadienyl and the t-butylmercaptan.The Ru-S distance is 2.396(2) Angstroem and the S-H distance is 1.289(2) Angstroem.

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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.32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II), molecular formula is C41H35ClP2Ru. In a Article，once mentioned of 32993-05-8, SDS of cas: 32993-05-8

Reduction of (eta5-C5H5)Ru(PPh3)2Cl (2) with LiAlH4 in tetrahydrofuran leads to the trihydride (eta5-C5H5)Ru(PPh3)H3 (1) together with, as a minor product, the expected monohydride (eta5-C5H5)Ru(PPh3)2H (3) which can be prepared efficiently by treatment of the chloride (2) with NaOMe; reduction of (eta5-C5H5)Ru(Ph2PCH2CH2PPh2)Cl (4) with LiAlH4 gives only the monohydride (eta5-C5H5)Ru(Ph2PCH2CH2PPh2)H (5).

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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.92361-49-4, Name is Chloro(pentamethylcyclopentadienyl)bis(triphenylphosphine)ruthenium(II), molecular formula is C46H45ClP2Ru. In a Article，once mentioned of 92361-49-4, HPLC of Formula: C46H45ClP2Ru

Micellar media in water provide a simple and efficient environment to favor the double bond isomerization of terminal alkenes catalyzed by the cationic half-sandwich complex 1 at 95 C. The micellar medium favors both catalyst dissolution in water by means of ion-pairing with the preferred anionic surfactants as well as substrate dissolution thus favoring its conversion into products.

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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 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.HPLC of Formula: C41H35ClP2Ru

Reaction of the ruthenium half sandwich compound RuCl(eta5- C5H5)(PPh3)2 with the uracil (Ur) substituted alkyne HCCUr in the presence of halide scavengers NH4X (X = PF6, BF4, OTf) results in the formation of the vinylidene complexes [Ru(CCHUr)(eta5-C5H 5)(PPh3)2][X] which crystallize in the hexagonal space group P6(3)/m. The hexagonal symmetry inherent to the system is due to the formation of a hydrogen bonded array mediated by the two sets of donor-acceptor units on the uracil, resulting in the formation of a cyclic “rosette” containing six ruthenium cations. In solution the 1H and 31P{1H} NMR spectra of the vinylidene complexes are both concentration and temperature dependent, in accord with the presence of monomer-dimer equilibria in which the rate of rotation of the vinylidene group is fast on the NMR timescale in the monomeric species, but slow in the dimers. The isoelectronic molybdenum-containing vinylidene complex [Mo(eta7-C7H7)(dppe)(CCHUr)][BF4] (dppe = 1,2-bis(diphenylphosphino)ethane) has also been prepared, but forms symmetric dimers in the solid state. The Royal Society of Chemistry.

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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.32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II), molecular formula is C41H35ClP2Ru. In a Article，once mentioned of 32993-05-8, COA of Formula: C41H35ClP2Ru

The complexes [{Cp?(L2)Ru}C?CC6H 4C?CC6H2(OMe)2C?CC 6H4C C?C{Ru(L2)Cp?}](L2 = (PPh3)2, Cp? = Cp; L2 = dppe, Cp? = Cp*) in which the metal centres are bridged by an oligomeric phenylene ethynylene (OPE) ligand have been prepared and the electronic structure of these representative ruthenium-capped OPEs investigated using a combination of electrochemical, UV-vis-NIR and IR spectroelectrochemical methods, and DFT-based calculations. The diruthenium complexes are oxidised to the thermodynamically stable dications [Cp?Ru(L2)C?CC6H 4C?CC6H2(OMe)2C?CC 6H4C C?CRu(L2)Cp?]2+, which on the basis of the spectroelectrochemical and computational results can be described in terms of two non-interacting Ru(C C?CAr)(L 2)Cp? moieties. X-ray structures of the oligophenyleneethynylene HC?CC6H4C?CC 6H2(OMe)2C?CC6H4C C?CH, the bis(gold) complex Ph3PAuC?CC6H 4C?CC6H2(OMe)2C?CC 6H4C C?CAuPPh3 and the precursor 1-ethynyl-4-(trimethylsilylethynyl)benzene are also reported. The Royal Society of Chemistry 2010.

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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. 32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II), molecular formula is C41H35ClP2Ru. In a Article，once mentioned of 32993-05-8, HPLC of Formula: C41H35ClP2Ru

Ruthenium-assisted cyclizations of two enynes, HC?CCH(OH)(C 6H4)X-CH2CH=CMe2 (X=S (1 a), O (1 b)), each of which contains two terminal methyl substituents on the olefinic parts, are explored. The reaction of 1 a in CH2Cl2 gives the vinylidene complex 2 a from the first cyclization and two side products, 3 a and the carbene complex 4 a with a benzothiophene ligand. The same reaction in the presence of HBF4 affords 4 a exclusively. Air oxidation of 4 a in the presence of Et3N readily gives an aldehyde product. In MeOH, tandem cyclizations of 1 a generate a mixture of the benzothiochromene compound 10 a and the carbene complex 7 a also with a benzothiochromene ligand. First, cyclization of 1 b likewise proceeds in CH2Cl2 to give 2 b. Tandem cyclization of 1 b in MeOH yields comparable products 10 b and 7 b with benzochromene moieties, yet with no other side product. The reaction of [Ru]Cl with HC?CCH(OH)(C6H4)S-CH2CH= CH2 (1 c), which contains no methyl substituent in the olefinic part, in MeOH gives the carbene complex 15 c with an unsubstituted thiochromene by means of a C-S bond formation. Structures of 3 a and 15 c are confirmed by X-ray diffraction analysis. The presence of methyl groups of enynes 1 a and 1 b promotes sequential cyclization reactions that involve C-C bond formation through carbocationic species. Copyright

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