Fluxional behaviour of phosphine complexes of tricarbonyl-η5-cyclopentadienylhydridotungsteni

الملخص EN

Complexes of the general formula [W ( ή5-C5H5 ) ( CO ) nLH l, n = 2, L=PMe2H1, PEt2Ph, PMePh2, PMunPh2, PBun3, P(OPh) and n = l, L = Ph2PCH2CH2PPh2, have been iolated and chancteized by IR, NMR (IH, 13C, 31P) and mass spectroscopy.

Interconversion of and trans isomers has been studied by variable temperature IH NMR meas- urements and values of AH-and associated with isomerisation have been calculated.

The results are compared with those from analogous molybdenum complexes made previously by others.