## Prof. Dr. Frank H. Köhler

#### Research - Perturbed Sandwiches

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## Strongly perturbed $$\pi$$ complexes

The reactivity of π complexes can be sizably enhanced and the spin distribution in paramagnetic derivatives can be strongly perturbed by using split π-electron ligands as in 14 - 16 and by introducing a heteroatom in the cyclopentadienyl ligand as in 17. Relevant references of the publication list are 81, 85, 110, 120.