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The magnetic properties of trinuclear Fe(III) substituted carboxylate clusters |
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| Authors: | K. I. Turta A. O. Solonenco I. I. Bulgak F. K. Jovmir M. Rosenberg P. Stelmaszyk G. Filoti |
| Affiliation: | (1) Institute of Chemistry, Academy of Sciences of Moldova, Academiei str. 3, 277028 Chishinau, Moldova;(2) Institut für Experimental Physik VI, Ruhr-Universität Bochum, D4630 Bochum, Germany;(3) Institute of Physics and Technology of Materials, P.O. Box MG7, Bucharest, Romania |
| Abstract: | The new Fe(III) complexes with isosceles or equilateral configurations showed atypical magnetic behaviour with a magnetic susceptibility which does not obey the Curie-Weiss law. The experimental data were fitted by using the Heisenberg-Dirac-van Vleck model with a spin Hamiltonian containing different exchange parameters in the case of isosceles configuration. A more elaborate Hamiltonian, taking into account the perturbation arising from a biquadratic exchange interaction was used in the case of equilateral configurations. |
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