Mononuclear Ruthenium Complexes Research Articles

An unsymmetrical binuclear ruthenium(II) complex of tris(2-pyridyl)-1,3,5-triazine and its identification by proton NMR spectroscopy

The use of tris(2-pyridyl)-1,3,5-triazine (TPT) for use as a bridging ligand that incorporates two Ru(II) atoms in nonequivalent sites such that one Ru(II) is bound in a bidentate fashion and the other is bound in a tridentate manner is described herein. The use of bpy-d{sub 8} as an auxiliary ligand in the formation and characterization of an unsymmetrical mononuclear ruthenium (I) complex has been extended to the perdeuterio analog of 2,2{prime};6,2{double prime}-terpyridine (Tpy), and its use in the characterization of a binuclear complex of TPT are reported. {sup 1}H NMR chemical shift data for the ligands and the ruthenium complexes are presented. 15 refs., 3 figs., 1 tab.

Mononuclear bis(dimethylglyoximato)ruthenium(III) complexes with different appended axial groups: highly efficient catalysts for water oxidation

Mononuclear ruthenium( III) complexes [Ru(H-dmg) 2XY] n ( n = −1, when X = Y = Cl − or ClO 4 − n = 0 when X = Cl − and Y = imidazole or 2-methylimidazole) were used as catalysts in water oxidation to molecular oxygen by electrolytic and chemical methods. The evolved oxygen in both methods was measured at atmospheric pressure (30 °C) using a specially-designed gas volumetric apparatus. The maximum turnover number of the above complexes (mol O 2 evolved per mole complex per hour) are reported.

Activation of alkynes with ruthenium complexes

Abstract

ChemInform Abstract: One‐Step Synthesis of Vinyl Carbamates Catalyzed by Mononuclear Ruthenium Complexes via Addition of Carbon Dioxide and Amine to Terminal Alkynes.

Terminal alkynes with secondary amines (dimethylamine, diethylamine, piperidine, morpholine) and CO2 in the presence of mononuclear ruthenium catalysts, afford the vinyl carbamates R1CHCHOCONR2. The reaction studies suggest, as the active catalytic species, a ruthenium-vinylidene intermediate.

Structure of a mononuclear ruthenium(II) complex containing carboxylato and trimethylphosphine ligands and an aqua ligand

Aquabis(trifluoroacetato)tris(trimethylphos- phine)ruthenium(II), (Ru(C2F302)2(C 3HgP)3(H20)), M r= 573.35, monoclinic, P21/c, a = 15.849 (7), b =8.760(4), c=17.398(3)A, fl=90.21(2) ° , U= 2415.5 A 3, Z = 4, D x = 1.58 Mg m -3, Mo K(~ radiation, it = 0.71069 A, /~ = 0.81 mm -~, F(000) = 1160, T= 295 K, R = 0.0452 for 2594 unique reflec- tions with F o >4g(Fo). The octahedral complex is mononuclear with three trimethylphosphine ligands in a facial configuration. The coordination sphere of the Ru atom is completed by two monodentate trifluoro- * To whom all correspondence should be addressed.

A double cluster of ruthenium and boron; [1-η2-{(η6-C6Me6)2Ru2H4}-isocloso-1-RuB10H8-2,3-(OEt)2

The novel double cluster compound [{(η6-C6Me6)2Ru2H4}RuB10H8(OEt)2], obtained in 31% yield as an unexpected product from the reaction between the mononuclear ruthenium complex arachno-[(η6-C6Me6)ClRuB3H8] and closo-[B10H10]2– in ethanol, exhibits a unique (non-carbonyl containing) triangular {Ru3} cluster and a closo-type eleven-vertex {RuB10} cluster conjoined at a common Ru atom.

Monoculear ruthenium–ammine complexes as catalysts for water oxidation

Mononuclear ruthenium complexes catalyse water oxidation with evolution of oxygen under homogeneous as well as heterogeneous conditions.

ChemInform Abstract: Synthesis and Study of Mononuclear Ruthenium(II) Complexes of Sterically Hindering Diimine Chelates.

AbstractDue to the steric hindrance, caused by the methyl groups in a position to the nitrogen atoms, the bis chelate complexes (II), (III) and (IV) are all cis with respect to the two remaining coordination sites and cannot be photoisomerized to their trans isomers.

Synthesis and study of mononuclear ruthenium(II) complexes of sterically hindering diimine chelates. Implications for the catalytic oxidation of water to molecular oxygen

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and study of mononuclear ruthenium(II) complexes of sterically hindering diimine chelates. Implications for the catalytic oxidation of water to molecular oxygenJ. P. Collin and Jean Pierre SauvageCite this: Inorg. Chem. 1986, 25, 2, 135–141Publication Date (Print):January 1, 1986Publication History Published online1 May 2002Published inissue 1 January 1986https://doi.org/10.1021/ic00222a008RIGHTS & PERMISSIONSArticle Views1546Altmetric-Citations182LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (916 KB) Get e-Alerts Get e-Alerts

One-step synthesis of vinyl carbamates catalyzed by mononuclear ruthenium complexes via addition of carbon dioxide and amine to terminal alkynes

Terminal alkynes with secondary amines (dimethylamine, diethylamine, piperidine, morpholine) and CO 2 in the presence of mononuclear ruthenium catalysts, afford the vinyl carbamates R 1CHCHOCONR 2. The reaction studies suggest, as the active catalytic species, a ruthenium-vinylidene intermediate.

Dehydrogenation of methanol in the liquid phase with a homogeneous ruthenium complex catalyst

Catalytic dehydrogenation of methanol occurs in solution by use of a homogeneous ruthenium complex,[Ru2(OAc)4Cl]–t-phosphine, or mononuclear ruthenium(II) complexes, which can be isolated from the reaction solution as catalysts.

The phosphinomethylsilyl group as a bifunctional bridging ligand. X-Ray crystal structure of hexacarbonylbis(µ-diphenylphosphino-methyldimethylsilyl)diruthenium(II), and of its reaction product with trifluoroacetic acid, a mononuclear ruthenium(II) complex incorporating a unique co-orinated silanol

Reaction between Ru3(CO)12 and Ph2PCH2SiMe2H affords the symmetrical bridged diruthenium complex [R[graphic omitted]Me2)2(CO)6] in which Ru–Ru = 3.056(1)A; treatment of this dimer with CF3CO2H leads to formation of a mononuclear phosphinomethyldimethylsilanol complex [R[graphic omitted]H)(CO)2(CO2CF3)2·Et2O] in which Ru–OSi= 2.19 A, δ(OH)= 12.12, and the solvating Et2O molecule is H-bonded to the silanol-O with O ⋯ O 2.64 A.