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Université de Neuchâtel

Mesomorphic Metallo-Dendrimers Based on the Metal−Metal Bonded Ru2(CO)4 Sawhorse Unit

Frein, Stéphane ; Auzias, Mathieu ; Sondenecker, Aline ; Vieille-Petit, Ludovic ; Guintchin, Boris ; Maringa, Natacha ; Süss-Fink, Georg ; Barberá, Joaquín ; Deschenaux, Robert

In: Chemistry of Materials, 2008, vol. 20, no. 4, p. 1340-1343

Dinuclear ruthenium complexes containing the stable metal−metal bonded Ru2(CO)4 sawhorse unit with two dendritic carboxylato bridges have been synthesized and characterized. All complexes Ru2(CO)4(O2CR)2L2 (R = R1, R2, R3) containing cyanobiphenyl-based poly(arylester) dendrons of first...

Université de Neuchâtel

Remarkable Anticancer Activity of Triruthenium-Arene Clusters Compared to Tetraruthenium-Arene Clusters

Therrien, Bruno ; Ang, Wee Han ; Chérioux, Frédéric ; Vieille-Petit, Ludovic ; Juillerat-Jeanneret, Lucienne ; Süss-Fink, Georg ; Dyson, Paul J.

In: Journal of Cluster Science, 2007, vol. 18, no. 3, p. 741-752

The in vitro activity of a series of ruthenium clusters, [(η6-C6H6)(η6-C6Me6)2Ru3 (μ-H)3 (μ3-O)][BF4], [(η6-C6H6)(η6-1,4-iPrC6H4Me)(η6-C6Me6)Ru3 (μ-H)3...

Université de Neuchâtel

Ruthenium(II) complexes with ferrocene-modified arene ligands: synthesis and electrochemistry

Therrien, Bruno ; Vieille-Petit, Ludovic ; Jeanneret-Gris, Julie ; Štěpnička, Petr ; Süss-Fink, Georg

In: Journal of Organometallic Chemistry, 2004, vol. 689, no. 15, p. 2456-2463

A series of arene–ruthenium complexes of the general formula [RuCl2{η6-C6H5 (CH2)2R}L] with R=OH, CH2OH, OC(O)Fc, CH2OC(O)Fc (Fc=ferrocenyl) and L=PPh3, (diphenylphosphino)ferrocene, or bridging 1,1′-bis(diphenylphosphino)ferrocene, have been synthesized. Two synthetic pathways have been used...

Université de Neuchâtel

An asymmetric trihydrido-bridged arene ruthenium complex

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

In: Inorganic Chemistry Communications, 2004, vol. 7, no. 2, p. 232-234

Reaction of [Ru(η6-indane)(H2O)3]2+ and [Ru(η6-C6Me6)(H2O)3]2+ with NaBH4 in water gives a mixture of three triple hydrido-bridged arene ruthenium cations [(η6-arene)Ru(μ-H)3Ru(η6-arene′)]+ (arene=indane and hexamethylbenzene;...

Université de Neuchâtel

X-ray crystallographic study of two dinuclear triply-bridged p-cymene osmium complexes

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

In: Journal of Molecular Structure, 2005, vol. 738, no. 1, p. 161-163

The single crystal X-ray structure analyses of [Os2(p-cymene)2(μ-H)3]PF6 ([1]PF6) and [Os2 (p-cymene)2 (μ-Cl)3]PF6 ([2]PF6) are presented. The two triple bridged arene osmium complexes show the metal to be in an octahedral geometry, where the p-cymene ligand is facially coordinated and where the bridging ligands (Cl or...

Université de Neuchâtel

X-ray crystallographic study of hydrogen-bonded systems formed between di- and tricarboxylic acids and the trinuclear cluster cation [H3Ru3(C6H6)(C6Me6)2 (O)]+

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

In: Journal of Molecular Structure, 2005, vol. 749, no. 1, p. 183-186

The hydrogen-bonded systems formed between 5-bromo-isophthalic and trimesic acid derivatives and the trinuclear arene-ruthenium cluster cation [H3Ru3(C6H6)(C6Me6)2 (O)]+ (1) have been studied in the solid state by single-crystal X-ray structure analysis of the tetrafluoroborate salts. The structure...

Université de Neuchâtel

The water-soluble cluster cation [H3Ru3(C6H6)(C6Me6)2(O)]+: Improved synthesis, aerobic oxidation, electrochemical properties and ligand exchange studies

Vieille-Petit, Ludovic ; Tschan, Mathieu J.-L. ; Süss-Fink, Georg ; Laurenczy, Gabor ; Hagen, Collin M. ; Finke, Richard G. ; Geneste, Florence ; Moinet, Claude

In: Polyhedron, 2005, vol. 24, no. 15, p. 1961-1967

The synthesis of the trinuclear cluster cation [H3Ru3(C6H6)(C6Me6)2(O)]+ (1) has been considerably improved by changes in the NaBH4 addition step and by introducing chromatographic methods; in addition, the redox and ligand exchange properties of 1 have been studied. Although exposure...

Université de Neuchâtel

2,3,4,7-Tetrahydro-1H-inden-2-ol: synthesis, molecular structure and coordination chemistry

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

In: Polyhedron, 2004, vol. 23, no. 4, p. 687-691

2,3,4,7-Tetrahydro-1H-inden-2-ol (1) has been synthesised by Birch reduction of indan-2-ol. A single-crystal X-ray structure analysis of 1 shows the compound to exist as hydrogen-bonded polymers along the c-axis due to the presence of a series of hydrogen-bonds between hydroxo functions. The ferrocene ester derivatives, ferrocene carboxylic acid...

Université de Neuchâtel

Host–guest properties of the trinuclear arene–ruthenium cluster cation [H3Ru3(C6H6)(C6Me6)2(O)]+

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

In: Inorganica Chimica Acta, 2004, vol. 367, no. 11, p. 3289-3294

The trinuclear arene–ruthenium cluster cation [H3Ru3(C6H6)(C6Me6)2(O)]+, containing a μ3-oxo cap and three arene ligands that span a hydrophobic pocket above the metal skeleton, has been crystallised as tetrafluoroborate salt in the presence of various guest molecules. The host–guest complexes...