Die Uran(IV)-Liganden Wechselwirkungen in den Paramagnetischen Tetra- und (Tris-Cyclopentadienyl) -Halogeniden / Uranium(IV)-ligand Interaction in Paramagnetic Tetra- and (Tris-cyclopentadienyl)-halides
Open Access
- 1 November 1978
- journal article
- research article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A
- Vol. 33 (11) , 1268-1280
- https://doi.org/10.1515/zna-1978-1104
Abstract
The magnetic susceptibilities of the uranium tetrahalides and of the tris-cyclopentadienyluranium- halides were measured from 1 to 300 K by using a Faraday magnetic balance at six applied magnetic fields between 3.50 and 13.1 kOe. It is found that these compounds do not obey a Curie-Weiß law. Their effective magnetic moments at room temperature show maximally 70% of the moment calculated for the free U4+-ion. By taking into account spectroscopic data the experimental magnetic susceptibilities can be described by using a modified Van Vleck theory.Keywords
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