SYNTHESIS AND STRUCTURE OF (ETA-C5H5)W(PPH3)(CO)(CSPH) - TRANSFORMATION OF A THIOCARBONYL LIGAND INTO A CARBYNE LIGAND

It was previously established in this laboratory that the thiocarbonyl ligand in certain thiocarbonyl complexes can be alkylated with MeOSO2F or R3O+ to give the CSR ligand, e.g., For this reaction to occur, it is necessary for the starting complex to be sufficiently electron rich to exhibit a v(CS) value of ~1200 cm-1 or below. We now report a new and unexpected route to CSR complexes together with the first X-ray diffraction study of this type of ligand. © 1979, American Chemical Society. All rights reserved.