Intermediate frustration in [Fe3O(CH3COO)6(H2O)3] NO3 · 4(H2O) trinuclear cluster

The frustration of the trinuclear clusters with antiferromagnetic intracluster interaction was investigated at low temperature and in applied magnetic field, by Mössbauer, susceptibility and magnetisation measurements. The spin configuration and the electronic state are described as a function of the temperature and the intensity of the applied field. The values of the exchange integrals are provided.