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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
- PublicationMétadonnées seulementDichlorido(furfuryl-amine-?N)(?-hexa-methyl-benzene)-ruthenium(II)(2011)
; ; The single-crystal X-ray structure analysis of [RuCl(2)(C(12)H(18))(C(5)H(7)NO)] reveals a distorted piano-stool geometry around the Ru(II) atom, with a hexa-methyl-benzene ligand, two chloride ligands and a furfuryl-amine ligand, the latter coordinating through the amine group. In the crystal, a dimeric structure is observed as a result of N-H(midline ellipsis)Cl inter-actions between two symmetry-related mol-ecules.[on SciFinder (R)] - PublicationMétadonnées seulementDichlorido(furfurylmine-?N)(?6-hexamethylbenzene)ruthenium(II)(2011)
; ; The single-crystal x-ray structure anal. of [RuCl2(C12H18)(C5H7NO)] reveals a distorted piano-stool geometry around the RuII atom, with a hexamethylbenzene ligand, two chloride ligands and a furfurylamine ligand, the latter coordinating through the amine group. In the crystal, a dimeric structure is obsd. as a result of N-H···Cl interactions between two symmetry-related mols. Crystallog. data and at. coordinates are given. [on SciFinder(R)] - PublicationAccès libreDichlorido(furfurylamine-κN)(η6-hexamethylbenzene)ruthenium(II)(2011)
; ; The single-crystal X-ray structure analysis of [RuCl2(C12H18)(C5H7NO)] reveals a distorted piano-stool geometry around the RuII atom, with a hexamethylbenzene ligand, two chloride ligands and a furfurylamine ligand, the latter coordinating through the amine group. In the crystal, a dimeric structure is observed as a result of N-H...Cl interactions between two symmetry-related molecules. - PublicationAccès libreArene ruthenium bis-saccharinato complexes: Synthesis, molecular structure and catalytic oxidation properties in aqueous solutionArene 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 [(η6-MeC6H4Pri)Ru(sacc)2(OH2)] reacts with acetonitrile to give the acetonitrile complex [(η6-MeC6H4Pri)Ru(sacc)2(NCMe)]. The corresponding benzene derivative [(η6-C6H6)Ru(sacc)2(NCMe)] was obtained from [(η6-C6H6)RuCl2]2 and saccNa in an acetonitrile-methanol mixture (1:1). All new complexes show a piano-stool geometry with two mono-hapto nitrogen-bonded saccharinato ligands in addition to a H2O or MeCN ligand. All complexes of the type [(η6-arene)Ru(sacc)2(OH2)] and [(η6-arene)Ru(sacc)2(NCMe)] were found to catalyze the oxidation of secondary alcohols with tert-butyl hydroperoxide (ButOOH) to give the corresponding ketones in aqueous solution.
- PublicationAccès libreComplexes métalliques hydrosolubles à ligands arène ou cyclopentadiényle : synthèse, stucture moléculaire, potentiel catalytique et propriétés biologiques(2011)
La mise en œuvre de réactions catalytiques en solution aqueuse telles que l’hydrogénation du CO2 et l’oxydation des alcools secondaires a montré un potentiel catalytique des complexes arène-ruthénium dans des conditions respectueuses de l’environnement. Au cours de cette thèse, la première application catalytique en solution aqueuse envisagée a été l’hydrogénation du dioxyde de carbone utilisant le complexe à ligand oxinato [(η6-MeC6H4Pri)Ru(N,O-L)(OH2)]+ avec une activité catalytique d’environ 97 h-1. La deuxième application catalytique en solution aqueuse proposée a été l’oxydation des alcools secondaires avec la N-méthylmorpholine N-oxyde (NMO), le H2O2 et le ButOOH comme oxydants utilisant les complexes arène-ruthénium à ligand saccharinato. Le meilleur résultat a été obtenue avec le complexe [(η6-C6H6)Ru(sacc)2(OH2)] et le ButOOH à pH 7 où l’activité catalytique dépasse 33000 h-1.
La deuxième partie de ce travail de recherche traite de la conception et l’évaluation in vitro de complexes arène-ruthénium du type [(η6-arène)Ru(O,O-L)Cl] (LH = 3-hydroxyflavone, curcumine). L’activité cytotoxique des complexes a été testée sur les lignées cellulaires A2780, A2780cisR et HEK. - PublicationMétadonnées seulementBimetallic ruthenium-tin chemistry: Synthesis and molecular structure of arene ruthenium complexes containing trichlorostannyl ligands(2010)
; ; ; - PublicationAccès libreBimetallic ruthenium–tin chemistry: Synthesis and molecular structure of arene ruthenium complexes containing trichlorostannyl ligands(2010)
; ; ; - PublicationAccès librePentamethylcyclopentadienyl rhodium and iridium complexes containing oxinato ligands(2009)
; The neutral chloro complexes [(η5-C5Me5)M(η2-NC9H6O)Cl] as well as the cationic aqua complexes [(η5-C5Me5)M(η2-NC9H6O)(H2O)]+ (M = Rh, Ir) have been synthesized from the reaction of the dinuclear precursors [(η5-C5Me5)MCl2]2 and 8-hydroxyquinoline. The single crystal X-ray structure analysis of [(η5-C5Me5)Ir(η2-NC9H6O)Cl] reveals for these complexes a piano-stool arrangement with the aromatic ligand, the chelating oxinato ligand and the terminal chloro or aqua ligand surrounding the metal center in a pseudo-tetrahedral fashion. - PublicationAccès libreArene ruthenium oxinato complexes: Synthesis, molecular structure and catalytic activity for the hydrogenation of carbon dioxide in aqueous solutionTwo families of arene ruthenium oxinato complexes of the types [(η6-arene)Ru(η2-N,O-L)Cl] and [(η6-arene)Ru(η2-N,O-L)(OH2)]+ have been synthesized from the dinuclear precursors [(η6-arene)RuCl2]2 (arene = para-cymeme or hexamethylbenzene) and the corresponding oxine LH (LH = 8-hydroxyquinoline, 5-chloro-8-hydroxyquinoline, 5,7-dichloro-8-hydroxyquinoline, 5-nitro-8-hydroxyquinoline, 5,7-dimethyl-8-hydroxyquinoline, 5,7-dichloro-2-methyl-8-hydroxyquinoline). The molecular structures of the neutral chloro complexes [(η6-C6Me6)Ru(η2-N,O-L)Cl] (LH = 8-hydroxyquinoline, 5,7-dichloro-2-methyl-8-hydroxyquinoline) and [(η6-MeC6H4Pri)Ru(η2-N,O-L)Cl] (LH = 5,7-dichloro-2-methyl-8-hydroxyquinoline) as well as those of the cationic aqua derivatives [(η6-MeC6H4Pri)Ru(η2-N,O-L)(OH2)]+ (LH = 8-hydroxyquinoline, 5,7-dimethyl-8-hydroxyquinoline), isolated as the tetrafluoroborate salts, show in all cases a piano-stool arrangement with the arene ligand, the chelating oxinato ligand and the chloro or the aqua ligand surrounding the ruthenium center in a pseudo-tetrahedral fashion. The analogous reaction of [(η6-MeC6H4Pri)RuCl2]2 with other N,O-chelating ligands such as 2-pyridinemethanol or tetrahydrofurfurylamine did not give the expected analogs but resulted in the formation of the complexes [(η6-MeC6H4Pri)Ru(η2-NC5H4CH2OH)Cl]+ and [(η6-MeC6H4Pri)Ru(η1-NHCH2C4H3O)Cl2]. The neutral and cationic complexes of the types [(η6-arene)Ru(η2-N,O-L)Cl] and [(η6-arene)Ru(η2-N,O-L)(OH2)]+ have been found to catalyze the hydrogenation of carbon dioxide to give formate in alkaline aqueous solution with catalytic turnovers up to 400.