Materials Data on FeB6(CO)4 by Materials Project
(B)6Fe(CO)4 crystallizes in the orthorhombic Pbca space group. The structure is zero-dimensional and consists of forty-eight boron molecules and eight Fe(CO)4 clusters. In each Fe(CO)4 cluster, Fe3+ is bonded in a see-saw-like geometry to four C+3.25- atoms. There are a spread of Fe–C bond distances ranging from 1.79–1.82 Å. There are four inequivalent C+3.25- sites. In the first C+3.25- site, C+3.25- is bonded in a linear geometry to one Fe3+ and one O2- atom. The C–O bond length is 1.15 Å. In the second C+3.25- site, C+3.25- is bonded in a linear geometry to one Fe3+ and one O2- atom. The C–O bond length is 1.15 Å. In the third C+3.25- site, C+3.25- is bonded in a linear geometry to one Fe3+ and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+3.25- site, C+3.25- is bonded in a linear geometry to one Fe3+ and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+3.25- atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+3.25- atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+3.25- atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+3.25- atom.