The redox pair (μ4-TCNE)Fe(CO)2(C5H5)44+/3+: Surprisingly small metal-ligand interaction and the first resolved EPR hyperfine structure (13C, 14N, 57Fe) of a tetranuclear complex with TCNE-. Inorganic Chemistry Communications, (8)7:600--602, 2005. [PUMA: MLCT band bridged charge complex complex;EPR complex;metal complex;redox complex;tetracyanoethylene coordinated coupling cyclopentadienyl cyclopentadienyliron dicarbonyl hyperfine interaction iron ligand nitrogen potential prepn spectrum tetracyanoethylene tetranuclear transfer]