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DOI: 10.1039/A709075G (Paper) Reference Section for: J. Chem. Soc., Dalton Trans., 1998, 1249-1252

Solution decomposition of platinum(II) fluoride cations; single-crystal structure of [Pt(PPh3)2(C6H4PPh2)][SbF6]·CD2Cl2

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Howard C. S. Clark, John Fawcett, John H. Holloway, Eric G. Hope, Lee A. Peck and David R. Russell

Abstract

An extended X-ray absorption fine structure (EXAFS) investigation of the metal co-ordination geometry in the cations [PtF(PR3)3]+ (R = Et or Ph) indicates that the Pt–F bond lengths are identical and only slightly longer than those typical for low-valent metal fluoride complexes. The solution decomposition of the complexes, [PtF(PPh3)3][X] (X = HF2, BF4 or SbF6), have been studied in both wet and dry chlorinated solvents and the only reactions observed have been due to the presence of water, producing, initially, [Pt(OH)(PPh3)3]+ and subsequently the ortho-metallated products [Pt(PPh3)3(C6H4PPh2)][X], which have been characterised by mass spectrometry, multinuclear NMR spectroscopy and, when X = SbF6, by single-crystal X-ray crystallography.

References

  1. N. M. Doherty and N. W. Hoffman, Chem. Rev., 1991, 91, 553 CrossRef CAS.
  2. E. A. V. Ebsworth, N. Robertson and L. J. Yellowlees, J. Chem. Soc., Dalton Trans., 1993, 1031 RSC.
  3. N. M. Doherty and S. C. Critchlow, J. Am. Chem. Soc., 1987, 109, 7906 CrossRef CAS; J. E. Veltheer, P. Burger and R. G. Bergman, J. Am. Chem. Soc., 1995, 117, 12 478 CrossRef.
  4. S. A. Brewer, A. K. Brisdon, J. H. Holloway, E. G. Hope, L. A. Peck and P. G. Watson, J. Chem. Soc., Dalton Trans., 1995, 2945 RSC.
  5. C. J. Marshall, R. D. Peacock, D. R. Russell and I. L. Wilson, Chem. Commun., 1970, 1643 RSC; S. A. Brewer, J. H. Holloway and E. G. Hope, J. Chem. Soc., Dalton Trans., 1994, 1067 RSC; S. A. Brewer, J. H. Holloway, E. G. Hope and P. G. Watson, J. Chem. Soc., Chem. Commun., 1992, 1577 RSC.
  6. M. A. Cairns, K. R. Dixon and J. J. McFarland, J. Chem. Soc., Dalton Trans., 1975, 1159 RSC.
  7. R. D. W. Kemmitt, R. D. Peacock and J. Stocks, J. Chem. Soc. A, 1971, 846 RSC.
  8. K. R. Dixon and J. J. McFarland, J. Chem. Soc., Chem. Commun., 1972, 1274 RSC.
  9. D. R. Russell, M. A. Mazid and P. A. Tucker, J. Chem. Soc., Dalton Trans., 1973, 1620 RSC.
  10. H.-H. Drews and W. Preetz, Z. Anorg. Allg. Chem., 1997, 623, 509 CrossRef CAS.
  11. P. L. Goggin and R. L. Goodfellow, NMR and the Periodic Table, eds. R. K. Harris and B. E. Mann, Academic Press, London, 1978 Search PubMed.
  12. E. G. Hope, W. Levason and N. A. Powell, Inorg. Chim. Acta, 1986, 115, 187 CrossRef CAS.
  13. See, for example, S. K. Harbron, S. J. Higgins, W. Levason, M. C. Feiters and A. T. Steel, Inorg. Chem., 1986, 25, 1789 Search PubMed; L. R. Hanton, J. Evans, W. Levason and R. J. Perry, J. Chem. Soc., Dalton Trans., 1991, 2039 CrossRef CAS; M. J. Atherton, K. S. Coleman, J. Fawcett, J. H. Holloway, E. G. Hope, A. Karaçar, L. A. Peck and G. C. Saunders, J. Chem. Soc., Dalton Trans., 1995, 4029 RSC.
  14. R. W. Joyner, K. J. Martin and P. Meehan, J. Phys. C, 1987, 20, 4005 CrossRef; N. Binstead, S. L. Cook, J. Evans, G. N. Greaves and R. J. Price, J. Am. Chem. Soc., 1987, 109, 3667.
  15. See, for example, N. R. Champness, W. Levason, D. Pletcher, M. D. Spicer and M. Webster, J. Chem. Soc., Dalton Trans., 1992, 2201 Search PubMed.
  16. P. S. Pregosin and R. W. Kunz, 31P and13 C NMR of Transition Metal Phosphine Complexes, Springer-Verlag, Berlin, 1979 Search PubMed.
  17. P. S. Braterman, R. J. Cross, L. Manojlovic-Muir, K. W. Muir and G. Young, J. Organomet. Chem., 1975, 84, C40 CrossRef CAS.
  18. P. S. Pregosin, R. Favez, R. Roulet, T. Boschi, R. A. Michelin and R. Ros, Inorg. Chim. Acta, 1980, 45, L7 CrossRef CAS.
  19. R. Favez, R. Roulet, A. A. Pinkerton and D. Schwarzenbach, Inorg. Chem., 1980, 19, 1356 CrossRef CAS.
  20. A. G. Orpen, L. Brammer, F. H. Allen, O. Kennard, D. G. Watson and R. Taylor, J. Chem. Soc., Dalton Trans., 1989, S1 RSC.
  21. G. Perego, G. del Piero, M. Cesari, M. G. Clerici and E. Perotti, J. Organomet. Chem., 1973, 54, C51 CrossRef CAS; K. von Deuten and L. Dahlenbury, Cryst. Struct. Commun., 1980, 9, 421 Search PubMed; M. Cowie, I. R. McKeer, S. J. Loeb and M. D. Gauthier, Organometallics, 1986, 5, 860 CrossRef CAS.
  22. N. C. Rice and J. D. Oliver, J. Organomet. Chem., 1978, 145, 121 CrossRef CAS; M. A. Bennett, D. E. Berry, S. K. Bhargava, E. J. Ditzel, G. B. Robertson and A. C. Willis, J. Chem. Soc., Chem. Commun., 1987, 1613 RSC.
  23. A. K. Brisdon, EX, A Program for EXAFS Data Reduction, University of Leicester, 1992.
  24. N. Binstead, S. J. Gurman and J. W. Campbell, EXCURV 92, SERC Daresbury Laboratory Program, 1992.
  25. K. O. Christe, W. E. Wilson and C. J. Schack, J. Fluorine Chem., 1978, 11, 71 CrossRef CAS.
  26. D. J. Cole-Hamilton, J. Chem. Soc., Dalton Trans., 1984, 2249 RSC.
  27. H. C. S. Clark, J. Fawcett, J. H. Holloway, E. G. Hope and L. A. Peck, manuscript in preparation.
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