Published May 15, 1992
| Version v1
Journal article
Lanthanide(III)-copper(II) squarates: Synthesis, crystal structure, magnetism and thermal behaviour of [L2Cu(C4O4)4(H2O)16]x2H2O and [Gd2Cu(C4O4)4(H2O)12]x2H2O
- 1. Centre d'Elaboration des Materiaux et d'Etudes Structurales, Lab. d'Optique Electronique du C.N.R.S., 31 - Toulouse (France)
- 2. Ecole Nationale Superieure de Chimie, Lab. des Materiaux de l'I.N.P.T., 31 - Toulouse (France)
Description
[La2Cu(C4O4)4(H2O)16] x 2H2O and [Gd2Cu(C4O4)4(H2O)12 ]x2H2O were obtained as single crystals from a mixture of squaric acid and metal chlorides in water. The structures, determined from X-ray diffraction data, are made of heterobimetallic layers in which hydrated Ln(III) and Cu(II) cations are related by squarate anions, according to a scheme which depends of the lanthanoid. Both compounds were submitted to thermal gravimetric and differential analyses in an oxygenated atmosphere, yielding Ln2CuO4 oxides as final decomposition products. The magnetic study of [ Gd2Cu(C4O4)4(H2O)12]x2H2O showed no significant spin coupling between Gd(III) and Cu(II). (orig.)
Additional details
Publishing Information
- Journal Title
- Inorganica Chimica Acta
- Journal Volume
- 195
- Journal Issue
- 2
- Journal Page Range
- p. 193-201.
- ISSN
- 0020-1693
- CODEN
- ICHAA3
INIS
- Country of Publication
- Italy
- Country of Input or Organization
- Switzerland
- INIS RN
- 24000096
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- BOND ANGLE; CARBON COMPOUNDS; CHEMICAL PREPARATION; COPPER COMPLEXES; DIFFERENTIAL THERMAL ANALYSIS; EXPERIMENTAL DATA; GADOLINIUM COMPLEXES; HYDRATES; INTERATOMIC DISTANCES; LANTHANUM COMPLEXES; LATTICE PARAMETERS; MAGNETIC PROPERTIES; MONOCRYSTALS; OXYGEN COMPOUNDS; SPACE GROUPS; STRUCTURAL CHEMICAL ANALYSIS; THERMAL GRAVIMETRIC ANALYSIS; X-RAY DIFFRACTION
- Descriptors DEC
- CHEMICAL ANALYSIS; COHERENT SCATTERING; COMPLEXES; CRYSTALS; DATA; DIFFRACTION; DISTANCE; GRAVIMETRIC ANALYSIS; INFORMATION; NUMERICAL DATA; PHYSICAL PROPERTIES; QUANTITATIVE CHEMICAL ANALYSIS; RARE EARTH COMPLEXES; SCATTERING; SYMMETRY GROUPS; SYNTHESIS; THERMAL ANALYSIS; TRANSITION ELEMENT COMPLEXES
Optional Information
- Notes
- Complete Structure Data may be found in ICSD file.