0000000000147652

AUTHOR

Liliane G. Hubert-pfalzgraf

showing 3 related works from this author

Cost efficient preparation of lead aminoalkoxides directly from lead(II) oxide

2005

Abstract The preparation of lead(II) aminoalkoxides has been demonstrated from the direct reaction of aminoalcohols with lead(II) oxide. The denticity of the aminoalcohols determined the facility of the reactions, the rate increasing with the number of hydroxyls. Thus, [Pb(dmae)2], 1, [Pb(mdea)]∞, 2, and [Pb(teaH)]2, 3 (dmaeH = dimethylaminoethanol, mdeaH2 = N-methyldiethanolamine, and teaH3 = triethanolamine) have been prepared in high yields and characterized by 1H and 13C NMR. The X-ray crystal structure analyses of 2 and 3 are described.

Denticity010405 organic chemistryInorganic chemistryOxideCrystal structureCarbon-13 NMR010402 general chemistry01 natural sciences0104 chemical sciencesInorganic Chemistrychemistry.chemical_compoundLead (geology)chemistryMaterials ChemistryDirect reactionPhysical and Theoretical ChemistryLead(II) oxideInorganic Chemistry Communications
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Lanthanide molecular oxohydroxides: Synthesis and characterisation of [Y4(μ4-O)(μ-OEt)2(μ,η2-AAA)2(η2-AAA)3]2(μ3-OH)4(μ3-OEt)2 (HAAA = allylacetatoac…

2007

International audience; The reaction between Y5O(OPri)13 and allylacetatoacetate or 2-(methacryloyloxy)ethyl acetatoacetate in 1:5 stoichiometry afforded octanuclear oxohydroxo species. Structural characterization was achieved for the allylacetatoacetate derivative homo and copolymerisation reactions with styrene were evaluated for doping of polystyrene. Hydoxo species, Y4(OH)2(AAA)10, where also obtained by reacting Y[N(SiMe3)]3 and HAAA.

LanthanideInorganic chemistrychemistry.chemical_element02 engineering and technologyAlkoxides010402 general chemistry01 natural sciences"Polymerizable ligands"StyreneInorganic Chemistrychemistry.chemical_compoundPolymer chemistryMaterials ChemistryYttriumPhysical and Theoretical ChemistryPolymerizable ligands"Alkoxides"Doping"X-ray structure"Yttrium[CHIM.CATA]Chemical Sciences/Catalysis021001 nanoscience & nanotechnology[SDE.ES]Environmental Sciences/Environmental and Society0104 chemical scienceschemistryPolystyreneX-ray structure0210 nano-technology"Yttrium"Derivative (chemistry)Stoichiometry
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η⇌μ exchange bonding mode of bidentate tmeda ligand. Molecular structure of [Y(tmhd)3]2(μ-tmeda)

2003

Abstract The reaction between the yttrium β-diketonate complexes Y(tmhd)3(H2O)x (x=0 or 1) and 0.5 or 1 equivalent of N,N,N′,N′-tetramethylethylenediamine (tmeda=Me2NCH2CH2NMe2) in hexane at room temperature afforded [Y(tmhd)3]2(tmeda) (1) and Y(tmhd)3(tmeda) (2) derivatives, respectively. They have been characterized by FT-IR, 1H NMR spectroscopy and by single crystal X-ray diffraction for 1. Variable temperature 1H NMR experiments indicated an equilibrium between 1 and 2. Their thermal behaviors were characterized by TGA and sublimation experiments. 2 is converted into compound 1 by heating over 100 °C. These precursors were used for the growth of Y2O3 and YBa2Cu3O7 − x films by pulsed in…

DenticityChemistryInorganic chemistrychemistry.chemical_elementYttriumChemical vapor depositionInorganic ChemistryHexanechemistry.chemical_compoundCrystallographyMaterials ChemistryProton NMRMoleculeSublimation (phase transition)Physical and Theoretical ChemistrySingle crystalInorganic Chemistry Communications
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