Summary
The magnetic moments for lanthanide 3-nitro and 4-nitrobenzoates were determined at 298 K and those for 3,4-dinitrobenzoates of rare earth elements over the temperature range 77 – 296 K. The complexes of 3,4-dinitrobenzoates of rare earths were found to obey the Curie-Weiss law. The values of μ calculated for all complexes (except that for europium 3,4-dinitrobenzoates) are close to those obtained for Ln3+ ions by Hund and Van Vleck. The results reveal that irrespective of the kind of ligands (3-nitro, 4-nitro or 3,4-dinitrobenzoates) no influence of their field on lanthanide ions occurs.
Zusammenfassung
Die magnetischen Momente von Lanthaniden-3-nitro und -4-nitrobenzoaten wurden bei 298 K untersucht, die von -3,4-dinitrobenzoaten im Temperaturbereich von 77 – 296 K. Die Komplexe entsprechen der Curie-Weiss-Regel. Die für alle Komplexe gefundenen μ-Werte (ausgenommen das 3,4-Dinitrobenzoat von Eu) sind sehr nahe den von Hund und Van Vleck erhaltenen. Es wurde also kein Einfluß des Ligandenfeldes auf die Lanthanid-Ionen festgestellt.
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Ferenc, W. Magnetic moments of lanthanide 3-, 4-nitrobenzoates and 3,4-dinitrobenzoates. Monatsh Chem 122, 653–659 (1991). https://doi.org/10.1007/BF00811464
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DOI: https://doi.org/10.1007/BF00811464