Metal complexes of sulphur ligands. Part 12. Synthesis, characterisation, and reactions of palladium(II) and platinum(II) complexes of type [MX(PR′3)(S–S)](X = halide, S–S–=[S2PR2]–, [S2CNR2]–, or [S2COR]–)
- 1 January 1977
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 5,p. 501-505
- https://doi.org/10.1039/dt9770000501
Abstract
Reaction of [Pd(PR′3)(S2PPh2)2](PR′3= PPh3 or PMe2Ph) with excess of AgX in acetone (X = Cl, Br, I, or SCN) leads to facile replacement of the unidentate [S2PPh2]– group by X– to give [PdX(PR′3)(S2PPh2)]. Similar reactions with [Pt(PR′3)(S–S)2](S–S–=[S2PPh2]– or [S2CNEt2]–) are not very efficient and a better general method of synthesising [MX(PR′3)(S–S)] complexes (M = Pd or Pt: X = Cl, Br, or I; S–S–=[S2PMe2]–, [S2CNEt2]–, [S2CNPri 2]–, or [S2COEt]–) is by reaction of equimolar amounts of [{MX2(PR′3)}2] and alkali-metal dithioacid salts. The complexes [MX(PR′3)(S–S)] have been characterised by elemental analyses and molecularweight, 1H n.m.r., and i.r. measurements and some of their reactions have been investigated.Keywords
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