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

Journal Article · Sun Dec 31 23:00:00 EST 1989 · 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), Journal Name: Journal of Coordination Chemistry; (United States) Vol. 22:3; ISSN 0095-8972; ISSN JCCMB
• Country of Publication: United States
• Language: English

Related Subjects

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