Lanthanide complexes of 3-acetyl-4-hydroxy-6-methyl-2H-pyran-2-one

Journal Article · Mon Jan 01 00:00:00 EST 1990 · Journal of Coordination Chemistry; (United States)

DOI:https://doi.org/10.1080/00958979009408219· OSTI ID:7305469

Sitran, S; Fregona, D ^[1]; Faraglia, G ^[2]

---

1. Istituto di Chimica e Tecnologia dei Radioelementi del C.N.R., Padova (Italy)
2. Dipartimento di Chimica Inorganica, Metallorganica ed Analitica dell'Universita, Padova (Italy)

The title ligand (H(Dh), dehydroacetic acid) reacts with lanthanide(III) acetates in anhydrous methanol to form complexes of formula (M(Dh){sub 3}(MeOH)). When hydrated lanthanide acetates are used, hydrated compounds such as (Ce(Dh){sub 3}(H{sub 2}O)) or (Eu(Dh){sub 3}(H{sub 2}O)).H{sub 2}O are obtained. The reaction of lanthanum triacetate with H(Dh) yields the mixed complex (La(Dh){sub 2}(O{sub 2}CMe)), formation of the 1:3 complex also being unfavored in the presence of a large ligand excess. The complexes have been characterized by infrared and NMR ({sup 1}H and {sup 13}C) spectroscopy and by thermogravimetric measurements.

• OSTI ID: 7305469
• Journal Information: Journal of Coordination Chemistry; (United States), Vol. 22:3; ISSN 0095-8972
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CERIUM COMPLEXES
CHEMICAL PREPARATION
EUROPIUM COMPLEXES
LANTHANUM COMPLEXES
ABSORPTION SPECTROSCOPY
CARBON 13
EXPERIMENTAL DATA
INFRARED SPECTRA
LIGANDS
NUCLEAR MAGNETIC RESONANCE
THERMAL GRAVIMETRIC ANALYSIS
CARBON ISOTOPES
CHEMICAL ANALYSIS
COMPLEXES
DATA
EVEN-ODD NUCLEI
GRAVIMETRIC ANALYSIS
INFORMATION
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
QUANTITATIVE CHEMICAL ANALYSIS
RARE EARTH COMPLEXES
RESONANCE
SPECTRA
SPECTROSCOPY
STABLE ISOTOPES
SYNTHESIS
THERMAL ANALYSIS
400201* - Chemical & Physicochemical Properties
400102 - Chemical & Spectral Procedures