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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...

Université de Neuchâtel

Mono and dinuclear complexes of half-sandwich platinum group metals (Ru, Rh and Ir) bearing a flexible pyridyl-thiazole multidentate donor ligand

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

In: Journal of Organometallic Chemistry, 2010, vol. 695, no. 2, p. 226–234

The mononuclear cationic complexes [(η6-C6H6)RuCl(L)]+ (1), [(η6-p-iPrC6H4Me)RuCl(L)]+ (2), [(η5-C5H5)Ru(PPh3)(L)]+ (3), [(η5-C5Me5)Ru(PPh3)(L)]+ (4),...

Université de Neuchâtel

Mono and dinuclear half-sandwich platinum group metal complexes bearing pyrazolyl-pyrimidine ligands: Syntheses and structural studies

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

In: Journal of Organometallic Chemistry, 2010, vol. 695, no. 4, p. 495–504

Reactions of 0.5 eq. of the dinuclear complexes [(η6-arene)Ru(μ-Cl)Cl]2 (arene = η6-C6H6, η6-p-iPrC6H4Me) and [(Cp∗)M(μ-Cl)Cl]2 (M = Rh, Ir; Cp∗ = η5-C5Me5) with 4,6-disubstituted pyrazolyl-pyrimidine ligands (L)...

Université de Neuchâtel

Study of complexes of platinum group metals containing nitrogen bases derived from pyridine aldehydes: Interesting molecular structures with unpredicted bonding modes of the ligands

Gupta, Gajendra ; Gloria, Sairem ; Nongbri, Saphidabha. L. ; Therrien, Bruno ; Rao, Kollipara Mohan

In: Journal of Organometallic Chemistry, 2011, vol. 696, no. 10, p. 2014–2022

A series of mono-cationic dinuclear half sandwich ruthenium, rhodium and iridium metal complexes have been synthesized using ((pyridin-2-yl)methylimino)nicotinamide (L1) and ((picolinamido)phenyl)picolinamide (L2) ligands: [(η6-arene)2Ru2 (μ-L1)Cl3]+ (arene = C6H6, 1;...

Université de Neuchâtel

Half sandwich platinum group metal complexes containing tetradentate N-donor ligand bearing two pyrazolyl-pyridine units linked by an aromatic spacer

Gupta, Gajendra ; Therrien, Bruno ; Rao, Kollipara Mohan

In: Journal of Organometallic Chemistry, 2010, vol. 695, no. 5, p. 753-759

Reaction of the bis-bidentate ligand, 1,3-bis((3-(pyridin-2-yl)-1H-pyrazol-1-yl)methyl)benzene (NN∩NN), containing two chelating pyrazolyl-pyridine units connected by an aromatic spacer with platinum group metal complexes results in a series of cationic binuclear complexes, [(η6-arene)2Ru2(NN∩NN)Cl2]2+...