Journal of the Chemical Society, Dalton Transactions p. 1129 - 1134 (1991)
Update date:2022-08-06
Topics:
Cecconi, Franco
Innocenti, Paolo
Midollini, Stefano
Moneti, Simonetta
Vacca, Alberto
Ramirez, Jose A.
The cis square-planar hydrido mercapto derivatives a temperature range encompassing slow- and fast-exchange limits characterizes these molecules as stereochemically nonrigid on the NMR time-scale.The fluxional behaviour can be explained on the basis of intramolecular exchange of the unco-ordinated phosphorus atom of triphos with the phosphorus atom co-ordinated in cis position to the hydride ligand.At higher temperature, a complete scrambling of the three phosphorus atoms occurs, and at the fast-exchange limit the spin correlation between the phosphorus atoms and platinum metal is retained.The related complexes
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