Exchange interaction in trinuclear transition-metal complexes

E. Bill*, Ch Butzlaff, A. X. Trautwein, H. Winkler, M. Winter, Ph Chaudhuri

*Corresponding author for this work
1 Citation (Scopus)


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.

Original languageEnglish
JournalHyperfine Interactions
Issue number1-4
Pages (from-to)229-232
Number of pages4
Publication statusPublished - 01.04.1992


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