metal-organic compounds
In the title compound, [Co(C18H27P)]PF6, the P—C(cyclopentadienyl) bond distance [1.840 (4) Å] is significantly shorter than P—C(tert-butyl) bond distances [1.879 (5) and 1.900 (5) Å]. The PF6− anion links to the cobaltocenium cation via weak C—HF hydrogen bonding.