Fig. 1. Molecular structures of [Me₄N]₂[FeL^H(OAc)] (1^H) (top) and [Me₄N]₂[FeL^NO₂(OAc)] (1^NO₂) (bottom); solvent and counter ion molecules not shown. Ellipsoids drawn at 50% probability and H-atoms removed for clarity. Color scheme: orange = iron; blue = nitrogen; red = oxygen; grey = carbon.