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)