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Université de Neuchâtel

New arene ruthenium complexes with planar chirality

Therrien, Bruno ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2004, vol. 357, no. 1, p. 219-224

1,2,4-Trimethyl-cyclohexadiene reacts with RuCl3 • nH2O in refluxing ethanol to afford quantitatively [RuCl2(1,2,4-C6H3Me3)]2 (1), the coordination of 1,2,4-trimethylbenzene to the ruthenium atom introducing planar chirality at the η6-arene ligand. The dinuclear complex 1 reacts with...

Université de Neuchâtel

Relating catalytic activity and electrochemical properties: The case of arene–ruthenium phenanthroline complexes catalytically active in transfer hydrogenation

Štěpnička, Petr ; Ludvík, Jiří ; Canivet, Jérôme ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2006, vol. 359, no. 8, p. 2369-2374

The electrochemical properties of cationic complexes [(η6-arene)Ru(N ∩ N)Cl]Cl (arene/N ∩ N = C6H6/1,10-phenanthroline (1), p-MeC6H4Pri/1,10-phenanthroline (2), C6Me6/1,10-phenanthroline (3), C6Me6/5-NO2-1,10-phenanthroline (4), and...

Université de Neuchâtel

Ru2(CO)4(OOCR)2(PPh3)2 sawhorse-type complexes containing μ2-η2-carboxylato ligands derived from biologically active acids

Auzias, Mathieu ; Therrien, Bruno ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2006, vol. 359, no. 1, p. 3412-3416

The thermal reaction of Ru3(CO)12 with the biologically active acids acetyl salicylic acid (Aspirin), α-methyl-4-(isobutyl)phenylacetic acid (Ibuprofen) and 3α,7α,12α-trihydroxy-5β-cholanic acid (cholic acid) in refluxing tetrahydrofuran, followed by addition of triphenylphosphine, gives the dinuclear complexes Ru2 (CO)...

Université de Neuchâtel

New mono and dinuclear arene ruthenium chloro complexes containing ester substituents

Therrien, Bruno ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2006, vol. 359, no. 13, p. 4350-4354

The dinuclear arene ruthenium complexes [RuCl2{C6H5(CH2)3OCO-p-C6H4-OC8H17}]2 (1) and [RuCl2{p-C6H4(CH2COOCH2CH3)2}]2 (2) have been obtained by dehydrogenation of the...

Université de Neuchâtel

Synthesis and molecular structure of trinuclear mixed-metal cluster cations containing arene and hydrido ligands

Romakh, Vladimir ; Therrien, Bruno ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2006, vol. 359, no. 3, p. 907-911

The mixed-metal trinuclear cluster cations [H3Ru2(C6Me6)2Os(C6H6)(O)]+ (1), [H3Ru2 (1,2,4,5-C6H2Me4)2Os(p-MeC6H4iPr)(O)]+ (2) and [H3Ru2...

Université de Neuchâtel

Dinuclear ruthenium sawhorse-type complexes containing carboxylato bridges and ferrocenyl substituents: Synthesis and electrochemistry

Auzias, Mathieu ; Süss-Fink, Georg ; Štěpnička, Petr ; Ludvík, Jiří

In: Inorganica Chimica Acta, 2007, vol. 360, no. 6, p. 2023-2028

The ferrocenyl-containing diruthenium complexes [Ru2(CO)4(μ2-η2-OOCFc)2L2] (Fc = ferrocenyl, fc = ferrocen-1,1′-diyl; 1: L = NC5H4–COOC6H4–OC10H21, 2: L =...

Université de Neuchâtel

Dinuclear iron, ruthenium and cobalt complexes containing 1,4-dimethyl-1,4,7-triazacyclononane ligands as well as carboxylato and oxo or hydroxo bridges

Romakh, Vladimir B. ; Therrien, Bruno ; Labat, Gael ; Stoeckli-Evans, Helen ; Shul’pin, Georgiy B. ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2006, vol. 359, no. 10, p. 3297-3305

The reaction of 1,4-dimethyl-1,4,7-triazacyclononane (L–Me2) with FeSO4 • 7H2O in aqueous ethanol gives, in the presence of sodium carboxylates, hydrogen peroxide, sodium hydroxide and KPF6, the dinuclear Fe(III)–Fe(III) complex cations [(L–Me2)2Fe2(O)(OOCR) 2]2+ (R = H: 1, R = CH3:...

Université de Neuchâtel

Mononuclear arene ruthenium complexes containing 5,6-diphenyl-3-(pyridine-2-yl)-1,2,4-triazine as chelating ligand: Synthesis and molecular structure

Therrien, Bruno ; Saïd-Mohamed, Cynthia ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2007, vol. 361, no. 9-10, p. 2601-2608

The mononuclear cations of the general formula [(η6-arene)RuCl(pdpt)]+ (pdpt = 5,6-diphenyl-3-(pyridine-2-yl)-1,2,4-triazine; arene = C6H6 (1); C6H5Me (2); p-PriC6H4Me (3); C6Me6 (4)) have been synthesised from 5,6-diphenyl-3-(pyridine-2-yl)-1,2,4-triazine...

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...