Isolation and structural determination of octacyanobutanediide, [C4(CN)8]2–; precursors to M(TCNE)x magnets‡
Abstract
The reaction of MI2·xMe3CN (M = Mn, Fe) and TCNE (tetracyanoethylene) leads to unprecedented [C4(CN)8]2– µ4-metal complexes which have been crystallographically characterized and are precursors to M(TCNE)x·yS magnets.