Abstract
Heterotrinuclear transition-metal complexes are of interest for the study of long-range magnetic interactions and as model compounds for the investigation of biological electron transport chains. The systems under study here contain paramagnetic Fe111-containing terminal units and a bridging unit with M11=Zn, Cu, Ni, Co, Fe, Mn. The spectroscopic methods applied include Mössbauer, — EPR- and magnetic susceptibility investigations. The spin-Hamiltonian analysis of the measured results yields information about the intramolecular super-exchange interactions among the various magnetic transmition-metal sites. In view of the 7Å separation between the two terminal Fe111 sites, the Fe111...Fe111 exchange coupling of the order −10cm−1 is large.
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Bill, E., Butzlaff, C., Trautwein, A.X. et al. Exchange interaction in trinuclear transition-metal complexes. Hyperfine Interact 68, 229–232 (1992). https://doi.org/10.1007/BF02396478
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DOI: https://doi.org/10.1007/BF02396478