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Evidence for Asymmetrical Cleavage of Halide-bridged Platinum(II) Complexes by Nucleophiles

DOI: 10.1039/DT9810002132

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 2132 - 2136 (1981)

Update date:2022-08-02

Topics:

Authors:

Cross, Ronald J.Cross, Ronald J.

Phillips, Ian G.Phillips, Ian G.

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Article abstract of DOI:10.1039/DT9810002132

The addition of PMe2Ph to at low temperatures produces the ions (1+) and (1-) as major products, as well as some of the expected .It is argued that the ionic species result from two molecules of the attacking nucleophile adding to a single platinum atom of the dimer, instead of the more common symmetrical attack.Less ionic product is produced from the addition of PBu3 to and PMe2Ph to , and none at all was detected from the addition of PBu3 to , so the nature of the phosphines involved has a profound effect on the course of the reactions.The ionic materials are able to undergo rapid phosphine exchange even at -60 deg C if excess ligand (PR3 or Cl-) is present.These exchange reactions can complicate the range of products observed unless precautions are taken to prevent local accumulations of the phosphine in the course of mixing the reactants.

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Product name:trans-[PtCl(PBu3)2(PMe2Ph)](1+)

Cas No:795239-25-7

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