Journal of the Chemical Society, Dalton Transactions p. 2321 - 2324 (1990)
Update date:2022-08-04
Topics:
Deeming, Antony J.
Karim, Manzurul
Powell, Nicholas I.
The reaction of a = 30.738(9), b = 9.867(2), c = 16.048(9) Angstroem, β = 121.04(3) deg, and Z = 8, and the X-ray structure was refined to R = 0.0330 and R'= 0.0335.Molecules of (4) contain two chelating pyS ligands and the tungsten is seven-co-ordinated.Approximately determined exchange rates for the diastereotopic Me groups of PMe2Ph and of the non-equivalent pyS ligands are the same indicating that both exchanges result from the same process.The corresponding molybdenum compound is isostructural and shows similar fluxionality.
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