Figure 2
Distribution of distances from iron(II) to nitrogen in six-coordinated iron(II) sites with the iron reported to be either in a low-spin state (shown in blue) or in a high-spin state (shown in orange). For each iron(II) site identified by CSD Refcode and iron(II) atom label, the distances to all six nitrogen ligands are shown. Typical FeII—N distances range between 1.9 and 2.1 Å for sites with a reported low-spin iron, while typical FeII—N distances range between 2.1 and 2.3 Å for sites with a reported high-spin iron. |