Tungsten acetylide complexes 1 [R = C(CH3)3; R = C6H5; R = p-tolyl] have been found to react in THF at −60 °C with ClAuP(C6H5)3 to yield the bimetallic tungsten gold complexes [(η5-C5H5)(NO)(μ-CO)(μ-C⋮C−R)W−AuP(C6H5)3] [8a, R = C(CH3)3; 8b, R = C6H5; 8c, R = p-tolyl] with semibridging carbonyl and alkynyl ligands. The molecular structure of 8a was determined by single-crystal X-ray diffraction analysis. Variable-temperature NMR studies of 8a showed fluxional behavior and at −80 °C the presence of three isomers.