Vignette d'image

Süss-Fink, Georg

Nom
Süss-Fink, Georg
Affiliation principale
Fonction
Professeur ordinaire
Email
georg.suess-fink@unine.ch
Identifiants
https://libra.unine.ch/handle/123456789/385

Résultat de la recherche

Filtres

22
2
2
2
Réinitialiser les filtres

Paramètres

Voici les éléments 1 - 2 sur 2
  • Publication
    Accès libre
    X-ray crystallographic study of hydrogen-bonded systems formed between di- and tricarboxylic acids and the trinuclear cluster cation [H3Ru3(C6H6)(C6Me6)2 (O)]+
    (2005)
    Therrien, Bruno 
    ;
    Vieille-Petit, Ludovic
    ;
    Süss-Fink, Georg 
    The hydrogen-bonded systems formed between 5-bromo-isophthalic and trimesic acid derivatives and the trinuclear arene-ruthenium cluster cation [H3Ru3(C6H6)(C6Me6)2 (O)]+ (1) have been studied in the solid state by single-crystal X-ray structure analysis of the tetrafluoroborate salts. The structure analysis of 5-bromo-isophthalic acid with [1][BF4] shows a 1:1 (acid:cluster) supramolecular system, only one hydroxyl of the acid functions interacting with the μ3-oxo ligand of a cation of 1, the hydroxyl group of the second acid function interacting with a tetrafluoroborate anion. With trimesic acid, a 1:2 (acid:cluster) supramolecular system is formed. Two hydroxyl groups interact with the μ3-oxo ligand of two independent cations of 1, while the remaining hydroxyl group of the third acid function interacts with a tetrafluoroborate anion.
  • Publication
    Accès libre
    Host–guest properties of the trinuclear arene–ruthenium cluster cation [H3Ru3(C6H6)(C6Me6)2(O)]+
    (2004)
    Therrien, Bruno 
    ;
    Vieille-Petit, Ludovic
    ;
    Süss-Fink, Georg 
    The trinuclear arene–ruthenium cluster cation [H3Ru3(C6H6)(C6Me6)2(O)]+, containing a μ3-oxo cap and three arene ligands that span a hydrophobic pocket above the metal skeleton, has been crystallised as tetrafluoroborate salt in the presence of various guest molecules. The host–guest complexes have been characterised by single-crystal X-ray structure analysis. With chloroform as the guest molecule, a CHCl3 molecule sits perfectly in the hydrophobic pocket, the hydrogen atom being encapsulated inside the cavity. When dioxane is added during the crystallisation process, the cluster forms infinite chains which are connected by a complex network of hydrogen bonds involving the μ3-oxo ligand, water and dioxane molecules. Interestingly, in the presence of phenol, a water molecule is hydrogen-bonded between the μ3-oxo ligand and the phenol molecule, forming a one-dimensional μ3-O … H2O … HO hydrogen-bonded chain. Finally, with benzoic acid, a head-to-tail host–guest chain is obtained, the phenyl ring being incorporated in the hydrophobic pocket, while the acid group is hydrogen-bonded to the μ3-oxo ligand.