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Université de Neuchâtel

Synthesis, characterization and exploration of the catalytic, supramolecular and biological applications of dinuclear complexes

Johnpeter, Justin Paul Raj ; Therrien, Bruno (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2013.

The work presented in this thesis involves the synthesis and characterization of dinuclear ruthenium, rhodium and iridium complexes. The catalytic, supramolecular and biological applications of these dinuclear complexes will be discussed. In the first part, the synthesis of sawhorse-type diruthenium tetracarbonyl complexes and their catalytic applications in the supercritical carbon dioxide...

Université de Neuchâtel

Thiolato-Bridged Arene–Ruthenium Complexes: Synthesis, Molecular Structure, Reactivity, and Anticancer Activity of the Dinuclear Complexes [(arene)2Ru2 (SR)2Cl2]

Ibao, Anne-Flore ; Gras, Michaël ; Therrien, Bruno ; Süss-Fink, Georg ; Zava, Olivier ; Dyson, Paul J.

In: European Journal of Inorganic Chemistry, 2012, vol. 2012, no. 9, p. 1531-1535

Treatment of an arene–ruthenium dichloride dimer with thiols RSH to lead to cationic trithiolato complexes of the type [(arene) 2Ru2(SR)3]+ was shown to proceed through the neutral thiolato complexes [(arene)2Ru2(SR)2Cl2], which have been isolated and characterized for arene =...

Université de Neuchâtel

Ru2(CO)4(OOCR)2L2 sawhorse-type complexes containing axial 5-(4-pyridyl)-10,15,20-triphenylporphyrin ligands

Gras, Michaël ; Barry, Nicolas P.E. ; Therrien, Bruno ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2011, vol. 371, no. 1, p. 59-62

The thermal reaction of Ru3(CO)12 with various carboxylic acids (benzoic, 4-hydroxyphenylacetic, ferrocenic, stearic, oleic, 4-(octadecyloxy)benzoic) in refluxing tetrahydrofuran, followed by addition of 5-(4-pyridyl)-10,15,20-triphenylporphyrin (L), gives the dinuclear complexes Ru2(CO)4(OOCR)2L2 (1: R =...

Université de Neuchâtel

Superparamagnetic Core-Shell-Type Fe3O4/Ru Nanoparticles as Catalysts for the Selective Hydrogenation of an Unconstrained α,β-Unsaturated Ketone

Khan, Farooq-Ahmad ; Süss-Fink, Georg

In: European Journal of Inorganic Chemistry, 2012, vol. 2012, no. 4, p. 727-732

Superparamagnetic core-shell-type Fe3O4/Ru nanoparticles (particle size ca. 15 nm) synthesized by co-precipitation, adsorption and reduction methods were found to selectively hydrogenate the carbon-oxygen double bond in trans-4-phenyl-3-penten-2-one (conversion 100 %, selectivity > 90 %) with a catalytic turnover of 900 under mild reaction conditions (30 °C, 15 bar...

Université de Neuchâtel

Arene ruthenium bis-saccharinato complexes: Synthesis, molecular structure and catalytic oxidation properties in aqueous solution

Thai, Trieu-Tien ; Therrien, Bruno ; Süss-Fink, Georg

In: Journal of Organometallic Chemistry, 2011, vol. 696, no. 21, p. 3285–3291

Arene ruthenium complexes [(η6-arene)Ru(sacc)2(OH2)] (arene = para-cymeme, benzene) containing an aqua and two saccharinato ligands have been synthesized from [(η6-arene)RuCl2]2 and sodium saccharinate in a water-ethanol mixture (1:1). The aqua complex...

Université de Neuchâtel

Bimetallic ruthenium–tin chemistry: Synthesis and molecular structure of arene ruthenium complexes containing trichlorostannyl ligands

Therrien, Bruno ; Thai, Trieu-Tien ; Freudenreich, Julien ; Süss-Fink, Georg ; Shapovalov, Sergey S. ; Pasynskii, Alexandr A. ; Plasseraud, Laurent

In: Journal of Organometallic Chemistry, 2010, vol. 695, no. 3, p. 409-414

A series of neutral, anionic and cationic arene ruthenium complexes containing the trichlorostannyl ligand have been synthesised from SnCl2 and the corresponding arene ruthenium dichloride dimers [(η6-arene)Ru(μ2-Cl)Cl]2 (arene = C6H6, PriC6H4Me). While the reaction with triphenylphosphine...

Université de Neuchâtel

Syntheses and characterization of mono and dinuclear complexes of platinum group metals bearing benzene-linked bis(pyrazolyl)methane ligands

Prasad, Kota Thirumala ; Therrien, Bruno ; Rao, Kollipara Mohan

In: Journal of Organometallic Chemistry, 2010, vol. 695, no. 9, p. 1375–1382

Reaction of the benzene-linked bis(pyrazolyl)methane ligands, 1,4-bis{bis(pyrazolyl)-methyl}benzene (L1) and 1,4-bis{bis(3-methylpyrazolyl)methyl}benzene (L2), with pentamethylcyclopentadienyl rhodium and iridium complexes [(η5-C5Me5)M(μ-Cl)Cl]2 (M = Rh and Ir) in the presence of NH4PF6 results under stoichiometric control in...