The structure of [1,1'-bis(diphenylphosphino)ferro-cene]eta4-1,5-cyclooctadiene)iridium(I) hexafluorophosphate, [lr(C8H12){(C5H4-PPh2)2Fe}][PF6], shows approximately square-planar geometry at iridium. The cyclopentadienyl rings of the dppf ligand are close to parallel and staggered.