Reaction of phosphorus-bridged ferrocenophane Fe(.eta.5-C5H4PPh)(.eta.5-C5H4) with LiC5H5 and NaFe(CO)2(.eta.5-C5H5). Structures of {Fe[(.eta.5-C5H4)2]P(C6H5)-P}Fe(H)(.eta.5-C5H5)(CO) and {(C6H5)[Fe(.eta.5-C5H5)(.eta.5-C5H4)][Fe(.eta.5-C5H5)(.eta.5-C5H3C(O))]P-P,C}Fe(.eta.5-C5H5)(CO).cntdot.CHCl3