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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

Dichlorido[1-(2-chloroethyl)-3-(pyridin-4-ylmethyl-κN)urea](η6-hexamethylbenzene)ruthenium(II) chloroform monosolvate

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

In: Acta Crystallographica Section E : Structure Reports Online, 2011, vol. E67, no. 11, p. m1613

The RuII atom in the title compound, [RuCl2(C12H18)(C9H12ClN3O)]•CHCl3, exhibits a typical piano-stool coordination, defined by a hexamethylbenzene ligand, two chloride ligands and a pyridylurea ligand coordinated through the pyridine N atom. In the crystal, a dimeric structure is observed due to two strong...

Université de Neuchâtel

[6-(Hydroxymethyl)pyridin-2-yl]methyl ferrocene-1-carboxylate

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

In: Acta Crystallographica Section E, 2011, vol. E67, no. 11, p. m1618

The crystal structure of the title ferrocene derivative, [Fe(C5H5)(C13H12NO3)], shows strong intermolecular O-H...N hydrogen bonds between the alcohol function and the pyridine group of a neighbouring molecule, while the pyridine function forms another hydrogen bond with the alcohol function of another neighbouring molecule, resulting in the...

Université de Neuchâtel

New Dinuclear Ru2(CO)4 Sawhorse-Type Complexes Containing Bridging Carboxylato Ligands

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

In: Zeitschrift für anorganische und allgemeine Chemie, 2008, vol. 635, no. 1, p. 115-119

The thermal reaction of Ru3(CO)12 with ethacrynic acid, 4-[bis(2-chlorethyl)amino]benzenebutanoic acid (chlorambucil), or 4-phenylbutyric acid in refluxing solvents, followed by addition of two-electron donor ligands (L), gives the diruthenium complexes Ru2 (CO)4(O2CR)2L2 (1: R =...

Université de Neuchâtel

Sawhorse-type diruthenium tetracarbonyl complexes containing porphyrin-derived ligands as highly selective photosensitizers for female reproductive cancer cells

Schmitt, Frédéric ; Auzias, Mathieu ; Štěpnička, Petr ; Sei, Yoshihisa ; Yamaguchi, Kentaro ; Süss-Fink, Georg ; Therrien, Bruno ; Juillerat-Jeanneret, Lucienne

In: Journal of Biological Inorganic Chemistry, 2009, vol. 14, no. 5, p. 693-701

Diruthenium tetracarbonyl complexes of the type [Ru2 (CO)4(μ2-η2-O2CR)2L2] containing a Ru–Ru backbone with four equatorial carbonyl ligands, two carboxylato bridges, and two axial two-electron ligands in a sawhorse-like geometry have been synthesized with porphyrin-derived substituents in the axial ligands...

Université de Neuchâtel

Di-μ-pivalamidato-bis[dicarbonyl(triphenylphosphine)ruthenium(II)](Ru-Ru)

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

In: Acta Crystallographica Section E, 2005, vol. 61, no. 11, p. 2426-2427

The title dinuclear ruthenium complex, [Ru2 (C5H19NO)2 (C18H15P)2 (CO)4], has been synthesized from Ru3 (CO)12, pivalamide and triphenylphosphine. The structure shows a Ru2 (CO)4 sawhorse backbone with the two OCNH bridges being transoid with respect to each other.

Université de Neuchâtel

Synthesis, structure and electrochemistry of cationic diruthenium complexes of the type [(N∩N)2Ru2 (CO)2 (μ-CO)2(μ-OOCFc)]+ containing a ferrocenecarboxylato bridge and two chelating aromatic diimine ligands

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

In: Journal of Organometallic Chemistry, 2007, vol. 692, no. 4, p. 755-760

The dinuclear bis(ferrocenecarboxylato) complex Ru2 (CO)4 (μ-OOCFc)2 (py)2 (Fc = ferrocenyl, py = pyridine) was found to react with aromatic diimines (2,2′-dipyridyl, 4,4′-dimethyl-2,2′-dipyridyl, 1,10-phenanthroline, 5-nitro-1,10-phenanthroline, and 5-amino-1,10-phenanthroline) in methanol to give the cationic diruthenium complexes...

Université de Neuchâtel

Arene–ruthenium complexes with ferrocene-derived ligands: Synthesis and characterization of complexes of the type [Ru(η6-arene)(NC5H4CH2NHOC-C5H4FeC5H5)Cl2] and [Ru(η6-arene)(NC3H3N(CH2)2O2C–C5H4FeC5H5)Cl2]

Auzias, Mathieu ; Gueniat, Joël ; Therrien, Bruno ; Süss-Fink, Georg ; Renfrew, Anna K. ; Dyson, Paul J.

In: Journal of Organometallic Chemistry, 2009, vol. 694, no. 6, p. 855-861

Arene–ruthenium complexes of general formula [Ru(η6-arene)(L)Cl2] where L = NC5H4CH2NHOC-C5H4FeC5H5, arene = p-iPrC6H4Me (1) or C6Me6 (2); L = NC3H3N(CH2)...

Université de Neuchâtel

Tetra- and hexanuclear cage molecules based on diruthenium tetracarbonyl sawhorse units: Synthesis and molecular structure of [{Ru2(CO)4 (PPh3)2}2 (O2CCH2CO2)2] and [{Ru2(CO)4 (PMe3)2}3 (O2CC6H4CO2)3]

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

In: Inorganic Chemistry Communications, 2007, vol. 10, no. 12, p. 1420-1424

The thermal reaction of Ru3 (CO)12 with malonic acid, followed by the addition of the corresponding ligand, yields the tetranuclear ruthenium complexes [{Ru2 (CO) 4L2}2 (O2CCH2CO2)2] (L = PPh3: 1, L = 3,5-Me2NC5H3: 2), while the...