No. [H2Et2][HFe3(CO)n], 2N][HFe3(CO)u], 107011-15-4; [H2(i-Pr)2N][HFe3(CO)n], 107011-16-5; [PPN][HFe3(CO)nJ, 23254-21-9; [HEt3N][HFe3-(CO)u], 56048-18-1; K[HFe3(CO)n], CO, Supplementary Material Available: Table IV, fractional coordinates (X104) for the hydrogen atoms of [H2(z-Pr)2][HFe3-(CO)u], and Table V, anisotropic temperature factors of [H2(t-Pr)2N][HFe3(CO)u] (2 pages); Table VI, observed and calculated structure factors (14 pages). Ordering information is given on any current masthead page.Reaction of Fe(7/5-C5H4PPh) (ij5 c5H4) with LICSHS and NaFe(CO)2(»;5-C5H5). Structures of |Fe[(7,5-C5H4)2]P(CeH5)-P¡Fe(H)(7,5-C5H5)(CO) and ¡(CeH5)[Fe(7,s-C5H5)(^5-C5H4)][Fe(^5-C5H5)(^-C5H3C(0))]P-P,ClFe(ij5-C5H5)(CO)-CHCI3