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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

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

New dinuclear arene ruthenium complexes with P,S- or P,O-chelating ligands

Burger, Sylvain ; Therrien, Bruno ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2004, vol. 357, no. 4, p. 1213-1218

Two equivalents of 2-diphenylphosphinobenzoic acid react with 1,2-ethanedithiol and 1,8-diaminonaphthalene under peptidic coupling conditions to give the new ligands 1,2-bis-S-[2′-(diphenylphosphino)benzoyl]dithioethane (dppte) (1) and 1,2-bis-N-[2′-(diphenylphosphino)benzoyl]diaminonaphthalene (dppan) (2), respectively. 1 and 2 have been characterised by...

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

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

Water-Soluble Arene Ruthenium Complexes Containing a trans-1,2-Diaminocyclohexane Ligand as Enantioselective Transfer Hydrogenation Catalysts in Aqueous Solution

Canivet, Jérôme ; Labat, Gael ; Stoeckli-Evans, Helen ; Süss-Fink, Georg

In: European Journal of Inorganic Chemistry, 2005, vol. 22, p. 4493 - 4500

The cationic chloro complexes [(arene)Ru(H2N∩NH2)Cl]+ (1: arene = C6H6; 2: arene = p-MeC6H4iPr; 3: arene = C6Me6) have been synthesised from the corresponding arene ruthenium dichloride dimers and enantiopure (R,R or S,S)...

Université de Neuchâtel

Calamitic liquid crystals containing metal–metal bonds : design of mesomorphic materials based on the Ru2(CO)4(µ-η2-O2CR)2L2 sawhorse unit

Deschenaux, Robert ; Donnio, Bertrand ; Rheinwald, Gerd ; Stauffer, Frédéric ; Süss-Fink, Georg ; Velker, Jörg

In: Journal of the Chemical Society, Dalton Transactions, 1997, p. 4351-4355

A series of complexes based on the stable [Ru2(CO)4(µ-η2-O2CR)2L2] sawhorse unit has been prepared and characterized. The derivatives...

Université de Neuchâtel

Carbonate binding to copper(II) in solution: mixed-ligand complex formation and its application to the isolation and separation of the three isomers of [Cu(bpp)(H2O)][ClO4]2 [bpp = 2,6-bis(pyrrolidin-2-yl)pyridine]

Bernauer, Klaus ; Godefroy, Isabelle ; Cabort, Amel ; Guicher, Nathalie ; Stoeckli-Evans, Helen ; Süss-Fink, Georg

In: Journal of the Chemical Society, Dalton Transactions, 2002, p. 2069-2073

The binding of the carbonate anion to [Cu(meso-bpp)(H2O)]2+ and rac-[Cu(bpp)(H2O)]2+ [bpp = 2,6-bis(pyrrolidin-2-yl)pyridine] in aqueous solution has been investigated. Formation constants of the carbonato complexes [Cu(meso-bpp)(CO3)] and rac-[Cu(bpp)(CO3)] (1.02 × 103 M–1 and...

Université de Neuchâtel

Catalytic hydrogenation of aromatics under biphasic conditions: isolation and structural characterisation of the cluster intermediate [(η6-C6Me6)2(η6-C6H6)Ru3(μ2-H)2(μ2-OH)(μ3-O)]+

Faure, Matthieu ; Tesouro Vallina, Ana ; Vieille-Petit, Ludovic ; Stoeckli-Evans, Helen ; Süss-Fink, Georg

In: Journal of Organometallic Chemistry, 2001, vol. 621, p. 103-108

The water-soluble cluster cation [(η6-C6Me6)2(η6-C6H6)Ru3(μ2-H)3(μ3-O)]+ (2) catalyses the hydrogenation of benzene and benzene derivatives to give the corresponding cyclohexanes under biphasic conditions. The catalytic activity of 2 depends...

Université de Neuchâtel

Dinuclear ruthenium sawhorse-type complexes containing bridging ligands with ferrocenyl substituents in endo/endo, endo/exo and exo/exo orientations

Auzias, Mathieu ; Therrien, Bruno ; Labat, Gaël ; Stoeckli-Evans, Helen ; Süss-Fink, Georg

In: Inorganica Chimica Acta, 2006, vol. 359, p. 1012-1017

The dinuclear ruthenium complexes Ru2(CO)4(OOCC5H4FeC5H5)2L2 (L = NC5H5: 1, L = PPh3: 2) have been synthesized from Ru3(CO)12, ferrocene carboxylic acid and pyridine or triphenylphosphine, respectively. The single-crystal X-ray structure analysis reveals...