Synthesis of a BEDT‐TTF Bipyridine Organic Donor and the First FeII Coordination Complex with a Redox‐Active Ligand

The synthesis of the new ligand, BEDT‐TTF‐bipy [4,5‐ethylenedithio‐4′,5′‐(4′‐methyl‐2,2′‐dipyrid‐4‐ylethylenedithio)tetrathiafulvalene] is reported. The first FeII coordination complex, namely [Fe(NCS)2(BEDT‐TTF‐bipy)2]·CHCl3, with this redox‐active ligand is obtained. Magnetic measurements and Mössbauer spectroscopy revealed the coexistence of high‐spin and low‐spin FeII species with a ratio of 40:60 in this compound. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)