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Süss-Fink, Georg
Nom
Süss-Fink, Georg
Affiliation principale
Fonction
Professeur ordinaire
Email
georg.suess-fink@unine.ch
Identifiants
Résultat de la recherche
Voici les éléments 1 - 9 sur 9
- PublicationAccès libreRhodium-Catalysed Carbonylation of Methanol Using a New Multifunctional Ligand - Isolation and Structural Characterisation of the Macrocycle [Rh2I6(CO)2(C6H4N3CH2CO2C4H2SCO2CH2C6H4N3)]2(2001)
; The new multifunctional ligand thiophene-2,5-bis(carboxylatomethylenebenzotriazole) (1) reacts with [RhCl(CO)2]2 to give the rhodium complex [RhCl(CO)(1)]2 (2), which was found to catalyse efficiently the iodide-mediated carbonylation of methanol. The macrocyclic carbonyliodorhodium complex [Rh2I6(CO)2(1)]2 (3) was isolated from the catalytic mixture and structurally characterised. - PublicationAccès libreNucleophilic addition reactions on the electron-deficient cluster dication [H4Ru4(C6H6)4]2+ : synthesis and structural characterisation of the water-soluble cluster cations [H3Ru4(C6H6)4 (CO)]+ and [H3Ru4(C6H6)4 (OH)]2(2001)
; The electron-deficient (58e) cluster cation [H4Ru4(C6H6)4]2+1 was found to react in aqueous solution with simple nucleophiles to give electron-precise (60e) clusters. With carbon monoxide, the cluster cation [H3Ru4(C6H6)4(CO)]+3 is formed. The reaction with water needs NaN3 as catalyst and yields the cluster dication [H3Ru4(C6H6)4 (OH)]2+4a; the reaction with alcohols leads to the analogous clusters [H3Ru4(C6H6)4 (OR)]2+ (R = Me: 4b, R = Et: 4c, R = PhCH2: 4d, R = Ph: 4e, R = 4-EtC6H4: 4f). The single-crystal X-ray structure analyses of the chloride salts of 3 and 4a reveal a tetrahedral Ru4 metal core. Each ruthenium atom is coordinated by a η6-benzene ligand, while the carbonyl or hydroxo ligands are found as µ3 capping ligands over a triangular face of the Ru4 tetrahedron. - PublicationAccès libreCluster build-up in aqueous solution: synthesis, structure, protonation and catalytic properties of the trinuclear cation [(η6-C6H6)(η6-C6Me6)2Ru3(μ2-H)3(μ3-O)]+(1999-08-27)
- PublicationAccès libreOxidative functionalisation of alkanes: synthesis, molecular structure and catalytic implications of anionic vanadium(V) oxo and peroxo complexes containing bidentate N,O ligands(1999)
; ; ; Claude, SaturninA mixture of [NBu4][VO3] and pyrazine-2-carboxylic acid (Hpca) in acetonitrile catalysed smoothly the reaction of alkanes RH (R = CH3 or C6H11) with molecular oxygen (from air) and hydrogen peroxide to give the corresponding alkyl hydroperoxide ROOH as the primary product. The oxo and peroxo anions [VO2(pca)2]– and [VO(O2)(pca)2]–, isolated as the tetrabutylammonium or ammonium salts from acetonitrile solution and fully characterised by single crystal structure analyses, are assumed to be involved in the catalytic process. A screening of different N,O ligands showed Hpca to be the best co-catalyst, while anthranilic acid (Hana) proved to be almost inactive. The isolation and crystal structure analysis of the analogous oxo compound [NBu4][VO2(ana)2] showed a fundamental difference in the co-ordination of the bidentate N,O ligands which might explain the different catalytic activities: while in [VO2(pca)2]– the two pca ligands are bonded through a nitrogen and an oxygen atom (N,O co-ordination), in [VO2(ana)2]– the two ana ligands are co-ordinated via two oxygen atoms of the carboxylato group (O,O co-ordination). - PublicationAccès libreTri- and Tetranuclear Mixed-Metal Clusters Containing Alkyne Ligands : Synthesis and Structure of [Ru3Ir(CO)11(RCCR’)]-, [Ru2Ir(CO)9(RCCR’)]-, and [HRu2Ir(CO)9(RCCR’)](1999)
; - PublicationAccès libreTriruthenium–iridium clusters containing alkyne ligands : synthesis, structure, and catalytic implications of [(µ-H)IrRu3(CO)11(µ3-η2-PhC≡CPh)] and [IrRu3(CO)10(µ4-η2-PhC≡CPh)(µ-η2-PhC=CHPh)](1998)
; - PublicationAccès libreSaturated and unsaturated triruthenium clusters containing three sterically demanding phosphine ligands : synthesis and structure of [Ru3(CO)9(PCy3)3] and [Ru3H2(CO)6(PCy3)3](1998)
; - PublicationAccès libreSaturated and unsaturated tetraruthenium clusters containing sterically demanding dicyclohexylphosphido ligands: synthesis and structure of [H4Ru4(CO)8(PCy2)4] and [H5Ru4(CO)8(PCy2)3](1998)
; - PublicationAccès libreMono-, di- and tetra-nuclear p-cymeneruthenium complexes containing oxalato ligands(1997)
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