The title compound, [Fe(C5H5)(C8H9P)(C20H20P2)]PF6, was obtained by sp
ontaneous resolution of the racemate from acetone/diethyl ether soluti
on. The cationic piano-stool iron(II) complex exhibits pseudo-octahedr
al coordination geometry, with Fe-P distances of 2.189(3) and 2.178 (4
) Angstrom for the bidentate ligand, and 2.170 (3) Angstrom for the ph
osphirane ligand, The bond parameters for the phosphirane ligand are i
n good agreement with those found for related complexes.