Complexing behaviour of Schiff bases derived from 3-acetyl-4-hydroxy-6-methyl-2H-pyran-2-one
- Metallorganica e Analitica dell'Univ., Padova (Italy)
- Inst. di Chimica e Tecnologia dei Radioelementi del C.N.R., Padova (Italy)
By reaction of 3-acetyl-r-hydroxy-6-methyl-2H-pyran-2-one (HDh, dehydroacetic acid) with H{sub 2}NR (R = Me, nPr or nBu) and HN(CH{sub 2}CH{sub 2}NH{sub 2}){sub 2} the related Schiff bases HDHR and H{sub 2}Dh{sub 2}T were obtained. All ligands react with uranyl nitrate yielding 1:2 adducts. In the uranyl acetate-HDhR systems adduct formation and ligand deprotonation should occur, depending on solvent, reaction time and hydration, whereas H{sub 2}Dh{sub 2}T undergoes total deprotonation in the presence of uranyl acetate to give (UO{sub 2}(Dh{sub 2}T)). Ligands and complexes have been characterized by ir and nmr ({sup 1}H and {sup 13}C) spectroscopy and, in some cases, by thermogravimetric measurements. The action of the amines on the preformed (UO{sub 2}(Dh){sub 2}) complex is discussed.
- OSTI ID:
- 7131208
- Journal Information:
- Journal of Coordination Chemistry; (United States), Journal Name: Journal of Coordination Chemistry; (United States) Vol. 25:2; ISSN 0095-8972; ISSN JCCMB
- Country of Publication:
- United States
- Language:
- English
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38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400201 -- Chemical & Physicochemical Properties
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ABSORPTION SPECTROSCOPY
ACTINIDE COMPLEXES
ACTINIDE COMPOUNDS
CARBON 13
CARBON ISOTOPES
CHEMICAL ANALYSIS
CHEMICAL PREPARATION
COMPLEXES
DATA
DEUTERIUM COMPOUNDS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
GRAVIMETRIC ANALYSIS
HYDROGEN COMPOUNDS
IMINES
INFORMATION
INFRARED SPECTRA
ISOTOPES
KETONES
LIGHT NUCLEI
MAGNETIC RESONANCE
NITRATES
NITROGEN COMPOUNDS
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
RESONANCE
SCHIFF BASES
SPECTRA
SPECTROSCOPY
STABLE ISOTOPES
SYNTHESIS
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
URANIUM COMPLEXES
URANIUM COMPOUNDS
URANYL COMPLEXES
URANYL COMPOUNDS
URANYL NITRATES