First η¹-ligated 2,4,6-tri-tert-butyl-1,3,5-triphosphabenzene complexes and the remarkable trihydration reaction of trans-[PtCl₂(PMe₃)(P₃C₃Bu^t₃)] to cis-[PtCl(PMe₃)(P₃O₃C₃H₅Bu^t₃)], containing the novel CH(Bu^t)PH(O)C(Bu^t)PH(O)CH(Bu^t)P(O) ring system

Abstract

The first examples of η¹-complexes of 2,4,6-tri-tert-butyl-1,3,5-triphosphabenzene are described, namely trans-[PtCl₂(PR₃)(P₃C₃Bu^t₃)] (PR₃ = PMe₃, PEt₃, PMe₂Ph or PMePh₂) and their structures established by ³¹P and ¹⁹⁵Pt NMR spectroscopy. The unusual molecular structure of cis-[PtCl(PMe₃)(P₃O₃C₃H₅Bu^t₃)], containing the novel CH- (Bu^t)PH(O)C(Bu^t)PH(O)CH(Bu^t)P(O) ring system, which is formed by the trihydration of trans-[PtCl₂(PMe₃)(P₃- C₃Bu^t₃)] is also reported.

References

1. K. B. Dillon, F. Mathey and J. F. Nixon, Phosphorus: The Carbon Copy, John Wiley, Chichester, 1998, p. 366 and references therein.
2. J. F. Nixon, Coord. Chem. Rev., 1995, 145, 201.
3. J. F. Nixon, Chem. Rev., 1988, 88, 1327.
4. Multiple bonds and low coordination in phosphorus chemistry, ed. M. Regitz and O. J. Scherer, Georg Thieme Verlag, 1990, p. 496 and references therein.
5. P. Binger, S. Leininger, J. Stannek, B. Gabor, R. Mynott, J. Bruckmann and C. Kruger, Angew. Chem., Int. Edn. Engl., 1995, 34, 2227.
6. F. Tabellion, A. Nachbauer, S. Leininger, C. Peters, M. Regitz and F. Preuss, Angew. Chem., Int. Edn., 1998, 37, 1233.
7. R. Gleiter, H. Lange, P. Binger, J. Stannek, C. Krüger, J. Bruckmann, U. Zenneck and S. Kummer, Eur. J. Inorg. Chem., 1998, 1619.
8. A. J. Ashe and J. C. Colburn, J. Am. Chem. Soc., 1977, 99, 8099; A. J. Ashe, W. Butler, J. C. Colburn and S. Abu-Orabi, J. Organomet. Chem., 1985, 282, 233.
9. P. L. Arnold, F. G. N. Cloke, P. B. Hitchcock and J. F. Nixon, J. Am. Chem. Soc., 1996, 118, 7630.
10. P. Binger, S. Stutzmann, J. Stannek, B. Gabor and R. Mynott, Eur. J. Inorg. Chem., 1999, 83.
11. K. Dimroth and W. Mach, Angew. Chem., Int. Edn. Engl., 1968, 7, 460.
12. B. Schmid, L. M. Venanzi, A. Albinati and F. Mathey, Inorg. Chem., 1991, 30, 4693.
13. D. Carmichael, P. Le Floch and F. Mathey, Phosphorus, Sulphur, 1993, 77, 255.
14. P. Le Floch, S. Mansuy, L. Ricard, F. Mathey, A. Jutand and C. Amatore, Organometallics, 1996, 15, 3267.