Author: Pierre Thuéry

0000000000827788

AUTHOR

Pierre Thuéry

showing 13 related works from this author

Synthesis and Structural Study of Tetravalent (Zr 4+ , Hf 4+ , Ce 4+ , Th 4+ , U 4+ ) Metal Complexes with Cyclic Hydroxamic Acids

2015

Six- and seven-membered cyclic hydroxamic acids, such as 1-hydroxypiperidine-2-one (1H, 1,2-PIPOH) and 1-hydroxyazepan-2-one (2H), have recently been identified in some mixed siderophores as one of their three chelating subunits. Compared to their ubiquitous noncyclic counterparts, cyclic hydroxamates are preorganized for metal binding. Surprisingly, the coordination chemistry of these bidentate, monoanionic ligands remains virtually unknown, even in the case of iron(III). We report herein the first structural study of the complexes of 1– and of 6–, an unsaturated seven-membered ring analog of 2–, with tetravalent cations of transition metals (zirconium and hafnium), lanthanide (cerium), an…

chemistry.chemical_classificationLanthanideSquare antiprismatic molecular geometryDenticity010405 organic chemistryStereochemistrychemistry.chemical_element010402 general chemistry01 natural sciences0104 chemical sciences3. Good healthCoordination complexInorganic ChemistryMetalCrystallographyCeriumchemistryTransition metalvisual_artvisual_art.visual_art_mediumChelationEuropean Journal of Inorganic Chemistry

researchProduct

Spin crossover of ferric complexes with catecholate derivatives. Single-crystal X-ray structure, magnetic and Mössbauer investigations.

2005

Complexes of general formula [(TPA)Fe(R-Cat)]X·nS were synthesised with different catecholate derivatives and anions (TPA = tris(2-pyridylmethyl)amine, R-Cat2− = 4,5-(NO2)2-Cat2− denoted DNC2−; 3,4,5,6-Cl4-Cat2− denoted TCC2−; 3-OMe-Cat2−; 4-Me-Cat2− and X = BPh4−; NO3−; PF6−; ClO4−; S = solvent molecule). Their magnetic behaviours in the solid state show a general feature along the series, viz., the occurrence of a thermally-induced spin crossover process. The transition curves are continuous with transition temperatures ranging from ca. 84 to 257 K. The crystal structures of [(TPA)Fe(DNC)]X (X = PF6−; BPh4−) and [(TPA)Fe(TCC)]X·nS (X = PF6−; NO3− and n = 1, S = H2O; ClO4− and n = 1, S = H…

Models MolecularChemistryStereochemistryCatecholsTemperatureSpace groupWaterCrystal structureElectronCrystallography X-RayLigandsFerric CompoundsInorganic ChemistryCrystallographyMagneticsSpectroscopy MossbauerSpin crossoverMössbauer spectroscopymedicineFerricSpin (physics)Single crystalmedicine.drugDalton transactions (Cambridge, England : 2003)

researchProduct

Functionalization of Bambusurils by a Thiol-Ene Click Reaction and a Facile Method for the Preparation of Anion-Free Bambus[6]urils

2018

Sulfide-functionalized bambus[4]urils ((RS)8 BU[4]) and bambus[6]urils ((RS)12 BU[6]) were synthesized through thiol-ene click coupling reactions (TEC) of allylbambus[n]urils. Thiosugars were grafted to BU[4] and BU[6]. Synthesis of BU[6] derivatives always requires the use of a template anion (iodide, chloride, or bromide), which is enclosed in the cavity of BU[6]. We show that this anion influences the reactivity of bambus[6]urils. An encapsulated iodide makes allyl functions of allyl12 BU[6] less reactive towards TEC and hydrogenation reactions in comparison to the corresponding chloride or bromide inclusion complexes. This is critical for the chemical reactivity of BU[6] and even more t…

chemistry.chemical_classification[CHIM.ORGA]Chemical Sciences/Organic chemistry010405 organic chemistryOrganic ChemistryIodideGeneral ChemistryNuclear magnetic resonance spectroscopy010402 general chemistry01 natural sciencesMedicinal chemistryQuantum chemistryCatalysisCoupling reaction0104 chemical sciences[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistrychemistry.chemical_compoundchemistryBromide[CHIM.CRIS]Chemical Sciences/CristallographyClick chemistryReactivity (chemistry)Ene reactionChemistry - A European Journal

researchProduct