Figure 6
Molecular overlay of between both cations constituting the symmetric unit of III demonstrating that the greatest disparity between them exists within the torsion angles of the the phenyl rings. The first tricarbonyl[η4-6-exo-(triphenylphosphino)cyclohepta-2,4-dien-1-one]iron(0) tetrafluorrborate is in black while the second is in yellow. Anisotropic displacement ellipsoids have been set to the 50% probability level. |