Research report 2008 - Max Planck Institute for Chemical Energy Conversion

The electron structure of "simple" iron complexes: a very complex problem

Khusniyarov, Marat; Weyhermüller, Thomas; Bill, Eckhard; Wieghardt, Karl

Bioanorganische Chemie (Prof. Dr. Karl Wieghardt)
MPI für bioanorganische Chemie, Mülheim an der Ruhr

We present a relatively simple inorganic system of two co-crystallized synthetic iron complexes with remarkably complex electronic structures, owing to the large number of possible redox states at the metal centers as well as at the redox-active ligands. For the first time an unprecedented complex reversible phase transition at 235 K is observed. With this model the exploration of complex processes, which may happen in similar ways in biological systems, is demonstrated by combined experimental techniques.

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