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Université de Neuchâtel

Synthesis, molecular structure and electrochemical properties of the star-shaped dinuclear complexes [Ru2(η6-p-Me–C6H4-iPr)2(μ2-S-p-C6H4–C4H3S)3]+ and [Rh2(η5-C5Me5)2(μ2-S-p-C6H4–C4H3S)3]+

Chérioux, Frédéric ; Therrien, Bruno ; Sadki, Saïd ; Comminges, Clément ; Süss-Fink, Georg

In: Journal of Organometallic Chemistry, 2005, vol. 690, p. 2365-2371

The dinuclear cations [Ru2(η6-p-Me–C6H4–iPr)2(μ2-S-p-C6H4–Br)3]+ and [Rh(η5-C5Me5)(μ2-S-p-C6H4–Br)3]+ are found to undergo triple Suzuki coupling with...

Université de Neuchâtel

Synthesis and molecular structure of the trinuclear ruthenium cluster cations [H3Ru3{C6H5(CH2)2OC(O)C6H5}(C6Me6)2(O)]+ and [H3Ru3{C6H5(CH2)2OC(O)(CH2)3C6H5}(C6Me6)2(O)]+

Vieille-Petit, Ludovic ; Therrien, Bruno ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2004, vol. 357, p. 3437-3442

Benzoic acid 2-cyclohexa-1,4-dienyl ethyl ester (1), and 4-phenylbutyric acid 2-cyclohexa-1,4-dienyl ethyl ester (2) are prepared by reacting, respectively, benzoic acid and 4-phenylbutyric acid with 2-cyclohexa-1,4-dienyl ethanol. These dienyl ester derivatives react with RuCl3• n H2O in refluxing ethanol to afford in good yield...

Université de Neuchâtel

Mono and oligonuclear vanadium complexes as catalysts for alkane oxidation : synthesis, molecular structure, and catalytic potential

Süss-Fink, Georg ; Gonzalez Cuervo, Laura ; Therrien, Bruno ; Stoeckli-Evans, Helen ; Shul’pin, Georgiy B.

In: Inorganica Chimica Acta, 2004, vol. 357, p. 475-484

A series of mono- and oligonuclear vanadium(V) and vanadium(IV) complexes containing various chelating N,O-, N3-, and O2-ligands have been prepared. The biphasic reaction of an aqueous solution of ammonium vanadate and a dichloromethane solution of hexamethylphosphoramide (hmpa) and pyrazine-2-carboxylic acid (pcaH) or pyrazine-2,5-dicarboxylic acid...

Université de Neuchâtel

Supramolecular cluster catalysis : facts and problems

Süss-Fink, Georg ; Therrien, Bruno ; Vieille-Petit, Ludovic ; Tschan, Mathieu J.-L. ; Romakh, Vladimir B. ; Ward, Thomas R. ; Dadras, Massoud ; Laurenczy, Gabor

In: Journal of Organometallic Chemistry, 2004, vol. 689, p. 1362-1369

By checking the chemistry underlying the concept of "supramolecular cluster catalysis" we identified two major errors in our publications related to this topic, which are essentially due to contamination problems. (1) The conversion of the "closed" cluster cation [H3Ru3(C6H6)(C6Me6)2(O)]+ (1) into the...

Université de Neuchâtel

Synthesis of a trinuclear cation [H3Ru3(Fc-arene)(C6Me6)2(O)]+ containing a ferrocenyl group tethered to an arene ligand

Vieille-Petit, Ludovic ; Unternährer, Sabine ; Therrien, Bruno ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2003, vol. 355, p. 335-339

Ferrocene carboxylic acid 2-cyclohexa-1,4-dienyl-ethyl ester (1) is prepared from ferrocene carboxylic acid and 2-cyclohexa-1,4-dienyl-ethanol. This diene reacts with RuCl3•nH2O in refluxing ethanol to afford quantitatively [Ru(Fc-arene)Cl2]2 (2) (Fc-arene=ferrocene carboxylic acid phenethyl ester). The dinuclear complex 2...

Université de Neuchâtel

Isolation and single-crystal X-ray structure analysis of the catalyst–substrate host–guest complexes [C6H6⊂H3Ru3{C6H5(CH2) nOH}(C6Me6)2(O)]+ (n = 2, 3)

Vieille-Petit, Ludovic ; Therrien, Bruno ; Süss-Fink, Georg ; Ward, Thomas R.

In: Journal of Organometallic Chemistry, 2003, vol. 684, p. 117-123

The trinuclear arene-ruthenium cluster cations [H3Ru3{C6H5 (CH2)nOH}(C6Me6)2 (O)]+ (3: n=2, 4: n=3) have been synthesised from the dinuclear precursor [H3Ru2 (C6Me6)2]+ and the mononuclear...

Université de Neuchâtel

Synthesis and molecular structure of the trinuclear ruthenium cluster cations [H3Ru3(C6H6)(C6H2Me4)2(O)]+ and [H3Ru3{C6H5(CH2)2OH}(C6H2Me4)2(O)]+

Vieille-Petit, Ludovic ; Therrien, Bruno ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2003, vol. 355, p. 394-398

The trinuclear arene–ruthenium cluster cations [H3Ru3(C6H6)(C6H2Me4)2(O)]+ (2) and [H3Ru3{C6H5(CH2)2OH}(C6H2Me4)2(O)]+ (3) have been synthesised from the dinuclear...

Université de Neuchâtel

Synthesis and structural characterisation of new cationic dinuclear ruthenium(II) thiolato complexes of the type [Ru2(η6-arene)2(μ-p-S–C6H4–Br)3]+

Chérioux, Frédéric ; Therrien, Bruno ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2004, vol. 357, p. 834-838

Dinuclear dichloro complexes [Ru(C6H6)Cl2]2, [Ru(p-MeC6H4iPr)Cl2]2, [Ru(1,2,4,5-C6H2Me4)Cl2]2, and [Ru(C6Me6)Cl2]2 react in ethanol with p-bromothiophenol to give the corresponding...

Université de Neuchâtel

Hydrogen-bonded systems between monocarboxylic acids and the trinuclear cluster cation [H3Ru3(C6H6)(C6Me6)2(O)]+ : cold-spray ionisation mass spectroscopic and X-ray crystallographic studies

Therrien, Bruno ; Vieille-Petit, Ludovic ; Süss-Fink, Georg ; Sei, Yoshihisa ; Yamaguchi, Kentaro

In: Journal of Organometallic Chemistry, 2004, vol. 689, p. 2820-2826

The hydrogen-bonded systems formed between monocarboxylic acid derivatives and the trinuclear arene-ruthenium cluster cation [H3Ru3(C6H6)(C6Me6)2(O)]+ (1) have been studied in solution by cold-spray ionisation mass spectroscopy (CSI-MS) and in the solid state by single-crystal X-ray structure analysis...

Université de Neuchâtel

Dinuclear ruthenium sawhorse-type complexes containing bridging ligands with ferrocenyl substituents in endo/endo, endo/exo and exo/exo orientations

Auzias, Mathieu ; Therrien, Bruno ; Labat, Gaël ; Stoeckli-Evans, Helen ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2006, vol. 359, p. 1012-1017

The dinuclear ruthenium complexes Ru2(CO)4(OOCC5H4FeC5H5)2L2 (L = NC5H5: 1, L = PPh3: 2) have been synthesized from Ru3(CO)12, ferrocene carboxylic acid and pyridine or triphenylphosphine, respectively. The single-crystal X-ray structure analysis reveals...