Formation of an unusual tetralithium diplatinum complex [Pt(C[triple bond, length half m-dash]CBut)2(PPh2O)2Li2(µ-H2O)(Me2CO)2]2 containing µ3-PPh2O Ligands

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Larry R. Falvello, Juan Forniés, Antonio Martín, Larry R. Falvello, Elena Lalinde, Teresa Moreno and Jorge Sacristán


Abstract

The very unusual complex [Pt(C[triple bond, length half m-dash]CBut)2(PPh2O)2Li2(µ-H2O)(Me2CO)2]2 2 is obtained by the reaction of ‘Li2[Pt(C[triple bond, length half m-dash]CBut)4]’ with an excess of PPh2H in acetone–ethanol and possesses an unusual linear chain of four Li atoms sandwiched between two square planar dianionic units trans-OPPh2{Pt(C[triple bond, length half m-dash]CBut)2}PPh2O, to which it is bound through µ3-PPh2O bridging ligands.


References

  1. R. Nast, Coord. Chem. Rev., 1982, 47, 89 CrossRef CAS.
  2. (a) Inorganic Materials, ed. D. W. Bruce and D. O'Hare, Wiley, 2nd edn., 1996, p. 460 Search PubMed; (b) W. Beck, B. Niemer and M. Weiser, Angew. Chem., Int. Ed. Engl., 1993, 32, 923 CrossRef; (c) N. J. Long, Angew. Chem., Int., Ed. Engl., 1995, 34, 21 CrossRef CAS; (d) R. Faust, F. Diederich, V. Gramlich and P. Seiler, Chem. Eur. J., 1995, 1, 111 CAS; (e) A. Harriman, M. Hissler, R. Ziessel, A. D. Cian and J. Fisher, J. Chem. Soc., Dalton Trans., 1995, 4067 RSC and references therein.
  3. (a) J. Manna, K. D. John and M. D. Hopkins, Adv. Organomet. Chem., 1995, 38, 79 CAS; (b) M. I. Bruce, M. Ke and P. J. Low, Chem. Commun., 1996, 2405 RSC; (c) J. Manna, J. A. Whiteford and P. J. Stang, J. Am. Chem. Soc., 1996, 118, 8731 CrossRef.
  4. (a) J. Forniés and E. Lalinde, J. Chem. Soc., Dalton Trans., 1996, 2587 RSC; (b) I. Ara, J. R. Berenguer, J. Forniés, E. Lalinde and M. T. Moreno, Organometallics, 1996, 15, 1820 CrossRef CAS; (c) R. J. Cross and M. F. Davidson, J. Chem. Soc., Dalton Trans., 1986, 1987 RSC; (d) S. Tanaka, T. Yoshida, T. Adachi, T. Yoshida, K. Onitsuka and K. Sonogashira, Chem. Lett., 1994, 877 CAS; (e) S. L. James, G. Verspui, A. L. Spek and G. van Koten, Chem. Commun., 1996, 1309 RSC.
  5. J. R. Berenguer, J. Forniés, F. Martínez, J. C. Cubero, E. Lalinde, M. T. Moreno and A. J. Welch, Polyhedron, 1993, 12, 1797 CrossRef CAS.
  6. [Pt2(C[triple bond, length as m-dash]CPh)4(PEt3)2(Bun)2(µ-Li)2]: A. Sebald, B. Wrackmeyer, Ch. R. Theocharis and W. Jones, J. Chem. Soc., Dalton Trans., 1984, 747 Search PubMed.
  7. M. G. Walawalkar, R. Murugaval, A. Voigt, H. W. Roesky and H. G. Schmidt, J. Am. Chem. Soc., 1997, 119, 4656 CrossRef CAS.
  8. P. Espinet, J. Forniés, F. Martínez, M. Tomás, E. Lalinde, M. T. Moreno, A. Ruiz and A. J. Welch, J. Chem. Soc., Dalton Trans., 1990, 791 RSC.
  9. The formation of phosphinito complexes starting from PPh2H has been previously observed: J. Vicente, M. T. Chicote and P. G. Jones, Inorg. Chem., 1993, 32, 4960 Search PubMed.
  10. M. A. Beswick and D. S. Wright, Comprehensive Organometallic Chemistry II, ed. E. W. Abel, F. G. A. Stone and G. Wilkinson, Elsevier, 1995, vol. 1, pp. 1–34 Search PubMed; E. Weiss, Angew. Chem., Int. Ed. Engl., 1993, 32, 1501 Search PubMed; K. Gregory, P. v. R. Schleyer and R. Snaith, Adv. Inorg. Chem., 1994, 37, 47 CrossRef; D. Seebach, Angew. Chem., Int. Ed. Engl., 1988, 27, 1624.
  11. R. E. Mulvey, Chem. Soc. Rev., 1991, 20, 167 RSC.
  12. (a) Lithium Chemistry—A Theoretical and Experimental Overview, ed. A.-M. Sapse and P. v. R. Schleyer, Wiley, New York, 1995, ch. 9 and references therein Search PubMed; (b) M. A. Beswick, N. L. Cromhout, C. N. Harmer, J. S. Palmer, P. R. Raithby, A. Steiner, K. L. Verhorevoort and D. S. Wright, Chem. Commun., 1997, 583 RSC.
  13. Homonuclear examples, see: D. E. Fogg, N. J. Taylor, A. Meyer and A. J. Carty, Organometallics, 1987, 6, 2252 Search PubMed; N. W. Alcock, P. Bergamini, T. M. Gomes-Carniero, R. D. Jackson, J. Nicholls, A. G. Orpen, P. G. Pringle, S. Sostero and O. Traverso, J. Chem. Soc., Chem. Commun., 1990, 980 CrossRef CAS; V. Riera, M. A. Ruiz, F. Villafane, C. Bois and Y. Jeannin, Organometallics, 1993, 12, 124 RSC Heteronuclear examples, see: P. M. Veitch, J. R. Allen, A. J. Blake and M. Schroder, J. Chem. Soc., Dalton Trans., 1987, 2853 CrossRef CAS; D. M. Roundhill, R. P. Sperline and W. B. Beaulieu, Coord. Chem. Rev., 1978, 26, 263 Search PubMed.
  14. B. V. R. Chowdari, K. Radhakrishnan, K. A. Thomas and G. V. Subba Rao, Mater. Res. Bull., 1989, 24, 221 CrossRef CAS.
  15. H. Aono, N. Imanaka and G.-Y. Adachi, Acc. Chem. Res., 1994, 27, 265 CrossRef CAS.
  16. G. M. Sheldrick, SHELXL-93, a Program for Crystal Structure Refinement, University of Göttingen, Germany, 1993.
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