Université de Neuchâtel

(μ-Diphenylphosphido-κP:P)-μ-hydrido-(μ-4-hydroxybenzenethiolato-κ2S:S)bis[(η6-hexamethylbenzene)ruthenium(II)] tetrafluoroborate

Tschan, Mathieu J.-L. ; Chérioux, Frédéric ; Therrien, Bruno ; Karmazin-Brelot, Lydia ; Süss-Fink, Georg

In: Acta Crystallographica Section E, 2006, vol. 62, no. 11, p. m2916-m2918

The new triple-bridged dinuclear cation [(η6-C6Me6)2Ru2(μ2-p-S-C6H4-OH)(μ2-PPh2)(μ2-H)]+, isolated and characterized as the tetrafluoroborate salt, was prepared by reacting the precursor...

Université de Neuchâtel

A Surprising Reaction of Trimethylphosphane with the Unsaturated Diruthenium Complex [(η6-C6Me6)2Ru2 (μ2-H)3]+: Synthesis and Molecular Structure of the Cations [(η6-C6Me6)Ru2 (PMe3)3 (μ2-H)3]+ and [(η6-C6Me6)2Ru2 (PMe3)2(μ2-H)(H)2]+

Tschan, Mathieu J.-L. ; Chérioux, Frédéric ; Therrien, Bruno ; Süss-Fink, Georg

In: European Journal of Inorganic Chemistry, 2007, vol. 4, p. 509-513

Whereas aromatic or aliphatic phosphanes undergo cleavage of the P-C bond in the reaction with [(η6-C6Me6)2Ru2 (μ2-H)3]+ to give phosphido-bridged diruthenium cations of the type [(η6-...

Université de Neuchâtel

Highly Selective Hydrogenation of Carbon-Carbon Multiple Bonds Catalyzed by the Cation [(C6Me6)2Ru2 (PPh2)H2]+: Molecular Structure of [(C6Me6)2Ru2 (PPh2)(CHCHPh)H]+, a Possible Intermediate in the Case of Phenylacetylene Hydrogenation

Tschan, Mathieu J.-L. ; Süss-Fink, Georg ; Chérioux, Frédéric ; Therrien, Bruno

In: Chemistry - A European Journal, 2006, vol. 13, no. 1, p. 292-299

The dinuclear cation [(C6Me6)2Ru2 (PPh2)H2]+ (1) has been studied as the catalyst for the hydrogenation of carbon-carbon double and triple bonds. In particular, [1][BF4] turned out to be a highly selective hydrogenation catalyst for olefin functions in molecules also containing reducible carbonyl...

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

Nondestructive Room-Temperature Adsorption of 2,4,6-tri(2t-thienyl)-1,3,5-triazine on a Si-B Interface: High-Resolution STM Imaging and Molecular Modeling

Makoudi, Y. ; Palmino, F. ; Duverger, E. ; Arab, M. ; Chérioux, Frédéric ; Ramseyer, C. ; Therrien, Bruno ; Tschan, Mathieu J.-L. ; Süss-Fink, Georg

In: Physical Review Letters, 2008, vol. 100, no. 076405, p. 1-4

Organic nanostructures on semiconductors are currently investigated but the surfaces are known to interact strongly with molecules. To reduce the molecule-surface interaction, we used the Si(111)-B √3 × √3R30°. Deposition of isolated 2,4,6-tri(2t-thienyl)-1,3,5-triazine, was achieved at room temperature without modification of their π skeleton. This fascinating...

Université de Neuchâtel

Subsequent Hydride Substitution in (Arene)trihydridodiruthenium Complexes: Synthesis and Structure of Thiolato-Bridged Diruthenium Cations of the Type [H2(arene)2Ru2(p-X-C6H4-S)]+ and [H(arene)2Ru2(p-X-C6H4-S)2]+

Tschan, Mathieu J.-L. ; Chérioux, Frédéric ; Therrien, Bruno ; Süss-Fink, Georg

In: European Journal of Inorganic Chemistry, 2004, vol. 12, p. 2405 - 2411

The cationic complexes [HRu2(η6-arene)2{μ2-(p-X-C6H4)-S}2]+ and [H2Ru2(η6-arene)2{μ2-(p-X-C6H4)-S}]+ (arene = 1,2,4,5-Me4C6H2 or C6Me6; X = Br and Me)...

Université de Neuchâtel

First Star-Like Oligophenylene Molecules Containing a Dinuclear Organometallic Core

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

In: European Journal of Inorganic Chemistry, 2003, vol. 6, p. 1043 - 1047

The cationic complexes Ru2[(p-MeC6H4iPr)2(p-SC6H4Br)3]+ and Rh2 [(C5Me5)2(p-SC6H4Br)3]+ are available in quantitative yields from the reaction of p-HSC6H4Br with...

Université de Neuchâtel

An iterative strategy for the synthesis of oligothiophenes by catalytic cross-coupling reactions

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

In: Heteroatom Chemistry, 2004, vol. 15, p. 121 - 126

An iterative strategy for the synthesis of new sulfur-functionalized oligothiophenes by Suzuki or Stille cross-coupling reactions was applied to the reaction of 4-bromo-tert-butylphenylthioether with thiophene derivatives. The planarity of the oligothiophenes obtained was confirmed by the single-crystal X-ray structure analysis of 2-(4-tert-butylthiophenyl)thiophene, which shows a potentially...

Université de Neuchâtel

Dendritic Systems Based on Dinuclear Ruthenium or Rhodium Units Generating Peripheral Catalytic Sites

Chérioux, Frédéric ; Thomas, Christophe M. ; Therrien, Bruno ; Süss-Fink, Georg

In: Chemistry - A European Journal, 2002, vol. 8, p. 4377 - 4382

A series of dendritic cations 1-4 containing Ru2S3 or Rh2S3 units, either in the core or in the dendrons, has been synthesized and characterized. The X-ray crystal structure analysis of 2-Cl shows a trigonal bipyramidal Rh2S3 core with propeller-like para-hydroxyphenyl substituents at the sulfur atoms. Reaction...