Complexes containing a Co 3 cluster linked to SiMe 3 , Au(PPh 3 ), W(CO) 3 Cp and Fc groups by a C 5 chain have been prepared by elimination of AuBr(PR 3 ) (R=Ph, tol) in the reactions between Co 3 (μ 3 -CBr)(μ-dppm)(CO) 7 and {(R 3 P)Au}C CC CX [X=SiMe 3 , W(CO) 3 Cp] or {(OC) 7 (μ-dppm)Co 3 }CC C{Au(PPh 3 )} and FcC CI (X=Fc). Subsequent auro-desilylation of the SiMe 3 compound affords {(OC) 7 (μ-dppm)Co 3 } CC CC C{Au[P(tol) 3 ]}. Single-crystal X-ray structures of the W(CO) 3 Cp, Au{P(tol) 3 } and Fc complexes are reported. The C 5 chain shows little departure from a formal C C C C C fragment.