Options
Therrien, Bruno
Nom
Therrien, Bruno
Affiliation principale
Fonction
Professeur titulaire
Email
bruno.therrien@unine.ch
Identifiants
Résultat de la recherche
Voici les éléments 1 - 10 sur 16
- PublicationMétadonnées seulementSynthesis and characterization of tetrahedral Ru3O clusters with intrinsic framework chirality: a chiral probe of the intact cluster catalysis concept. [Erratum to document cited in CA144:088385](2006)
; ; ; - PublicationMétadonnées seulementSynthesis and Characterization of Tetrahedral Ru3O Clusters with Intrinsic Framework Chirality: A Chiral Probe of the Intact Cluster Catalysis Concept(2005)
; ; ; - PublicationMétadonnées seulementAn unsymmetrical trihydrido-bridged arene ruthenium complex(2004)
; Reaction of [Ru(?6-indan)(H2O)3]2+ and [Ru(?6-C6Me6)(H2O)3]2+ with NaBH4 in water gives a mixt. of three triple hydrido-bridged arene ruthenium cations [(?6-arene)Ru(?-H)3Ru(?6-arene')]+ (arene = indan and hexamethylbenzene; arene' = indan and hexamethylbenzene). After treatment with NaBF4, the three complexes are sepd. by column chromatog. and the unsym. cation [(?6-indan)Ru(?-H)3Ru(?6-C6Me6)][BF4] can be isolated in moderate yield. This cation decomps. in soln. to give the corresponding hydroxo-bridged complex [(?6-indan)Ru(?-OH)3Ru(?6-C6Me6)]+ with retention of the unsym. geometry as shown by single-crystal X-ray anal. The indan ligand adopts an envelope conformation toward the ruthenium atom. [on SciFinder(R)] - PublicationMétadonnées seulementSynthesis and molecular structure of the trinuclear ruthenium cluster cations [H3Ru3{C6H5(CH2)2OC(O)C6H5}(C6Me6)2(O)]+ and [H3Ru3{C6H5(CH2)2OC(O)(CH2)3C6H5}(C6Me6)2(O)]+(2004)
; Benzoic acid 2-cyclohexa-1,4-dienyl Et ester (1), and 4-phenylbutyric acid 2-cyclohexa-1,4-dienyl Et ester (2) are prepd. by reacting, resp., benzoic acid and 4-phenylbutyric acid with 2-cyclohexa-1,4-dienyl ethanol. These dienyl ester derivs. react with RuCl3·nH2O in refluxing ethanol to afford in good yield [Ru{C6H5(CH2)2OC(O)C6H5}Cl2]2 (3), and [Ru{C6H5(CH2)2OC(O)(CH2)3C6H5}Cl2]2 (4). Trinuclear arene-ruthenium cluster cations [H3Ru3{C6H5(CH2)2OC(O)C6H5}(C6Me6)2(O)]+ (5), and [H3Ru3{C6H5(CH2)2OC(O)(CH2)3C6H5}(C6Me6)2(O)]+ (6) are synthesized from the dinuclear precursor [H3Ru2(C6Me6)2]+, and the mononuclear complexes [Ru{C6H5(CH2)2OC(O)C6H5}(H2O)3]2+ and [Ru{C6H5(CH2)2OC(O)(CH2)3C6H5}(H2O)3]2+, accessible, resp., from 3 and 4 in aq. soln. The water-sol. trinuclear cluster cations 5 and 6 possess a Ph substituent attached to their side-arm which can act as a substrate for hydrogenation. The single-crystal X-ray structure analyses of [5][PF6], and [6][PF6] have been detd. [on SciFinder(R)] - PublicationMétadonnées seulementSupramolecular cluster catalysis: facts and problems(2004)
; ; - PublicationMétadonnées seulement2,3,4,7-Tetrahydro-1H-inden-2-ol: synthesis, molecular structure and coordination chemistry(2004)
; 2,3,4,7-Tetrahydro-1H-inden-2-ol (1) has been synthesized by Birch redn. of indan-2-ol. A single-crystal x-ray structure anal. of 1 shows the compd. to exist as hydrogen-bonded polymers along the c-axis due to the presence of a series of hydrogen-bonds between hydroxo functions. The ferrocene ester derivs., ferrocene carboxylic acid 2,3,4,7-tetrahydro-1H-inden-2-yl ester (2) and ferrocene carboxylic acid indan-2-yl ester (3) have been prepd. by peptidic coupling of ferrocene carboxylic acid with 1 and with indan-2-ol, resp. The single-crystal x-ray structure anal. of 2 and 3 reveal in both cases the cyclopentadienyl rings to adopt an eclipsed conformation with the indenyl substituent being rotated out of the Cp ester plane by almost 90°, allowing no efficient interaction between the ?-system of the Cp ring and the indene moiety. The dienyl deriv. 2 reacts with RuCl3 · nH2O in refluxing ethanol to afford [Ru(arene)Cl2]2 (4) (arene = ferrocene carboxylic acid indan-2-yl ester) as a mixt. of isomers. [on SciFinder(R)] - PublicationMétadonnées seulementIsolation and single-crystal x-ray structure analysis of the catalyst-substrate host-guest complexes [C6H6?H3Ru3{C6H5(CH2)nOH}(C6Me6)2(O)]+ (n = 2, 3). [Erratum to document cited in CA140:059771](2004)
; ; Ward, Thomas R.Figure 3 appeared twice and Figure 4 was missing; the cor. Figure 4 is given. [on SciFinder(R)] - PublicationMétadonnées seulement[?6-2-(2-Methylbenzoyloxy)ethyl methacrylate]bis(?6-1,2,4,5-tetramethylbenzene)tri-?-hydrido-?3-oxo-triruthenium(II)(3 Ru-Ru) tetrafluoroborate(2004)
; - PublicationMétadonnées seulementHost-guest properties of the trinuclear arene-ruthenium cluster cation [H3Ru3(C6H6)(C6Me6)2(O)]+(2004)
; - PublicationMétadonnées seulementChiral arene ruthenium complexes: synthesis and molecular structure of the enantiopure cluster cation (S)-[H3Ru3{C6H5[CH(CH3)CH2OH]}(C6Me6)2(O)]+(2003)
; The reaction of enantiopure (R)-(2-cyclohexa-1,4-dienyl)propan-1-ol with ruthenium chloride hydrate yields, without racemization of the chiral ligand, the chloro-bridged dinuclear complex (S,S)-[RuCl2{C6H5[CH(CH3)CH2OH]}]2 (1). The dimer 1 reacts with triphenylphosphine to give the mononuclear complex (S)-[RuCl2{C6H5[CH(CH3)CH2OH]}(PPh3)] (2). A single-crystal X-ray structure anal. of 2 reveals the abs. configuration of the asym. carbon atom to have remained, the change from (R) to (S) being due to the priority change caused by coordination; in the solid state, one-dimensional hydrogen-bonded chains are formed between the hydroxy functions and chloro ligands of neighboring mols. The mononuclear cationic complex (S)-[Ru{C6H5[CH(CH3)CH2OH]}(H2O) 3]2+, formed in situ from 1 in aq. soln., reacts with the dinuclear complex [H3Ru2(C6Me6)2]+ to give a chiral trinuclear arene-ruthenium cluster, the cation (S)-[H3Ru3{C6H5[CH(CH3)CH2OH]}(C6Me6)2(O)]+ (3). This enantiopure cation has been isolated and characterized as its tetrafluoroborate salt. The single-crystal X-ray structure anal. of (S)-[3][BF4] shows a strong intramol. hydrogen bond between the ?3-oxo cap and the hydroxy function, which also persists in acetone solvent, as demonstrated by NMR spectroscopy. [on SciFinder(R)]