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Abstrakty
Conditions for the preparation of Y(III) and lanthanide(III) (La-Lu) 3,3-dimethylglutarates were investigated and their quantitative composition and solubility in water at 293Kwere determined (10-2-10-5 mole dm-3). The IR spectra of the complexes prepared with the general formula Ln2{C5H10(COO)2}3 nH2O (n = 2-15) were recorded and their thermal decomposition in air were investigated. During heating the hydrated 3,3-dimethylglutarates are dehydrated in one (La, Ce, Pr, Sm, Gd, Lu ), two (Y, Nd, Eu, Dy, Ho, Tm) or three (Tb, Er) steps and next the anhydrous complexes and dihydrated Yb(III) complex decompose to oxides Ln2O3, CeO2, Pr6O11 and Tb4O7 with intermediate formation Ln2O2CO3 except of Ce(III) complex, which decomposes directly to CeO2. The carboxylate groups in the complexes studied are bidentate.
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Tom
Strony
43--47
Opis fizyczny
Bibliogr. 9 poz., rys.
Twórcy
autor
- Department of General Chemistry, Marie Curie Sk3odowska University, 20-031 Lublin, Poland
autor
- Department of General Chemistry, Marie Curie Sk3odowska University, 20-031 Lublin, Poland
Bibliografia
- 1. Beilsten F., Handbuch der organischen Chemie, Bd 2, p. 684, Springer Verlag, Berlin 1939.
- 2. Charette A.B. and Juteau H„ Tetrahedron, S3, 16277 (1997).
- 3. Amaral E.C. and Guedes de Carvalho R.A., J. Inorg. Nucl. Chem., 31,2695 (1969).
- 4. Brzyska W, and Ozga W., Powder Diffraction File - in press.
- 5. Nakamoto K.., Infrared Spectra of Inorganic and Coordination Compounds, Wiley, NY 1997.
- 6. Manhas B.S. and Trikha A.K., J. Indian Chem., 59, 315 (1982).
- 7. Bellamy L.J., The Infrared Spectra of Complex Molecules, Chapman and Hall, London 1975.
- 8. Brzyska W. and Ozga W., J. Thermal Anal.Cal., 60, 123 (2000).
- 9. Brzyska W. and Borzechowski K., Polish J. Chem., 73, 1429 (1999).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ1-0016-0057