Fe O 71.844 oxidanylideneiron(4+) N metal-containing ligand MetalCoord N 2025-01-29 9I3B N 2026-08-07 PDBE REL HETAI A1I0E non-polymer O1 -2 -10.207 -6.796 -4.786 1 N O A1I0E N -10.209 -6.801 -4.789 1 N O FE1 -8.811 -6.190 -3.535 0 N FE A1I0E N -8.809 -6.185 -3.532 2 N FE N 1 N doub PDBE RCSB RCSB InChI=1S/Fe.O/q+4; VGZNMTZCLOWGPK-UHFFFAOYSA-N O=[Fe+4] O=[Fe+4] O=[Fe+4] O=[Fe+4] oxidanylideneiron(4+)