The tungsten carbyne complexes [W(CR)(CO)₂(L–L)X](R = C₆H₄Me-4) where L–L = 2,2′-bipyridine (bipy), 1,2-bis(dimethylphosphino)ethane (dmpe), or 1,2-bis(diphenylphosphino)-benzene (dppb), and X = Cl, Br, or NCS have been prepared and the structure of the N-bonded thiocyanate derivative [W(CR)(CO)₂(dmpe)(NCS)] determined by X-ray diffraction. The reaction of the octahedral carbynes with [AuCl(tht)](tht = tetrahydrothiophene) gave the dimetallic species [AuW(µ-CR)(CO)₂(L–L)X(Cl)], which when X ≠ Cl are mixtures due to an interchange of X and Cl between the Au and W. The carbynes also reacted with [Au(C₆F₅)(tht)] to give [AuW(µ-CR)(CO)₂(L–L)(C₆F₅)X], which for X = NCS are mixtures of two isomeric forms. The carbynes containing dmpe reacted with [Co₂(CO)₈] to give the trimetallic clusters [Co₂W(µ₃-CR)(CO)₈(dmpe)X](X = Cl or Br) which in solution exist as a mixture of interconverting isomers. The X-ray crystal structure determination of the bromo derivative revealed that, in the solid, the stereochemistry of the W(CO)₂(dmpe)X fragment is different from that corresponding to the starting carbyne. The dmpe carbynes also reacted with [Fe₂(CO)₉] in toluene to afford the bimetallic compounds [FeW(µ-CR)(CO)₆(dmpe)X](X = Cl or Br) having a Fe(CO)₄ fragment co-ordinated to the WCR bond.