Structure of (R)-1-[(S)-1',2-bis(diphenylphosphino)ferrocenyl]ethyl acetate

In the ferrocene moiety of [η 5 -1-(1-acetoxyethyl)-2- diphenylphosphinocyclopentadienyl](η 5 -diphenylphosphinocyclopentadienyl)iron, the planar and parallel cyclopentadienyl rings are slightly staggered with torsion angles about the centroids ranging from 22.8 to 24.9 o . The average Fe-C distance in this moiety is 2.042 (4) A and the average C-C bond distance is 1.423 (12) A. The P-C-C angles are asymmetric and C-C distances in the phenyl rings range from 1.32 (2) to 1.42 (2) A