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DOI: 10.1039/A809118H (Paper) Reference Section for: J. Chem. Soc., Dalton Trans., 1999, 1609-1614

Synthesis and structural characterisation of the mixed metal clusters [Rh2Pt3(µ-CO)5(CO)4(PPh3)3] and [Rh2Pt2(µ-CO)3(CO)4(PPh3)3]; crystal structure of [Rh2Pt3(µ-CO)5(CO)4(PPh3)3][hair space]†

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Fiodor M. Dolgushin, Elena V. Grachova, Brian T. Heaton, Jonathan A. Iggo, Igor O. Koshevoy, Ivan S. Podkorytov, Daniel J. Smawfield, Sergey P. Tunik, Robin Whyman and Aleksandr I. Yanovskii

Abstract

Two novel mixed metal rhodium–platinum clusters have been synthesized by the reaction of [Rh4(CO)12] with [Pt(PPh3)3]. The structure of [Rh2Pt3(µ-CO)5(CO)4(PPh3)3] 1 has been established by a single crystal X-ray diffraction study. The tetranuclear cluster [Rh2Pt2(µ-CO)3(CO)4(PPh3)3] 2 has been characterised by FAB mass spectrometry and shown by various multinuclear NMR techniques (13C, 31P, {31P–31P} COSY and {13C–103Rh} and {31P–103Rh} heteronuclear multiple quantum coherence, HMQC) to adopt a butterfly type structure. The carbonyl migration pathways in 2 have been established by a combination of EXSY and 1-D variable temperature measurements; independent localised exchange about the hinge rhodium atoms and interchange of bridging and semi-bridging carbonyls on the Pt–Rh bonds occur.

References

  1. B. T. Heaton, J. A. Iggo, I. S. Podkorytov, D. J. Smawfield and S. P. Tunik, Metal Clusters in Chemistry, eds. P. Braunstein, L. Oro and P. Raithby, Wiley-VCH, Weinheim, to be published and refs. therein Search PubMed.
  2. S. P. Tunik, I. S. Podkorytov, B. T. Heaton, J. A. Iggo and J. V. Sampanthar, J. Organomet. Chem., 1998, 550, 222 CrossRef CAS.
  3. C. Allevi, S. Bordoni, C. P. Clavering, B. T. Heaton, J. A. Iggo, C. Seregni and L. Garlaschelli, Organometallics, 1989, 8, 385 CrossRef CAS.
  4. B. T. Heaton, J. A. Iggo, I. S. Podkorytov, D. J. Smawfield, S. P. Tunik and R. Whyman, Chem. Commun., submitted for publication Search PubMed.
  5. E. V. Grachova, B. T. Heaton, J. A. Iggo, I. Podkorytov, D. J. Smawfield, S. P. Tunik and R. Whyman, unpublished work.
  6. A. Fumagalli, S. Martinengo, P. Chini, A. Albinati, S. Bruckner and B. T. Heaton, J. Chem. Soc., Chem. Commun., 1978, 195 RSC.
  7. A. Fumagalli, S. Martinengo, P. Chini, D. Galli, B. T. Heaton and R. D. Pergola, Inorg. Chem., 1984, 23, 7648.
  8. A. Fumagalli, S. Martinengo and G. Ciani, J. Organomet. Chem., 1984, 273, C46 CrossRef CAS.
  9. A. Fumagalli, S. Martinengo, G. Ciani and A. Marturano, Inorg. Chem., 1986, 25, 592 CrossRef CAS.
  10. A. Fumagalli, S. Martinengo, D. Galli, A. Albinati and F. Ganazzoli, Inorg. Chem., 1989, 18, 2476 CrossRef.
  11. M. Green, R. M. Mills, G. N. Pain, F. G. A. Stone and P. Woodward, J. Chem. Soc., Dalton Trans., 1982, 1309 RSC.
  12. M. Green, J. A. K. Howard, G. N. Pain and F. G. A. Stone, J. Chem. Soc., Dalton Trans., 1982, 1327 RSC.
  13. R. S. Dickson, G. D. Fallon, K. D. Hezle and M. J. Liddel, J. Organomet. Chem., 1992, 430, 221 CrossRef CAS.
  14. K. Wade, Adv. Inorg. Chem. Radiochem., 1976, 18, 1 CAS.
  15. C. R. Eady, B. F. G. Johnson, J. Lewis, B. E. Reichert and G. M. Sheldrick, J. Chem. Soc., Chem. Commun., 1976, 271 RSC.
  16. W. Weibin, R. J. Batchelor, W. B. F. Einstein, C.-Y. Lu and R. K. Pomeroy, Organometallics, 1993, 12, 3598 CrossRef CAS.
  17. R. D. Pergola, L. Garlaschelli, F. Demartin, M. Manassero, N. Masciocchi, M. Sansoni and A. Fumagalli, J. Chem. Soc., Dalton Trans., 1989, 1109 RSC.
  18. A. Sironi et. al., unpublished results quoted in ref. 19.
  19. P. Macchi, D. M. Proserpio and A. Sironi, Organometallics, 1997, 16, 2101 CrossRef CAS.
  20. A. Fumagalli, R. D. Pergola, F. Bonacina, L. Garlaschelli, M. Moret and A. Sironi, J. Am. Chem. Soc., 1989, 111, 165 CrossRef CAS.
  21. A. Fumagalli, T. F. Koetzle, F. Takusagawa, P. Chini, S. Martinengo and B. T. Heaton, J. Am. Chem. Soc., 1980, 102, 1740 CrossRef CAS.
  22. G. Longoni, P. Chini, D. Lower and L. F. Dahl, J. Am. Chem. Soc., 1975, 97, 5034 CrossRef CAS.
  23. J. K. Ruff, R. P. White and L. F. Dahl, J. Am. Chem. Soc., 1971, 93, 2159 CrossRef.
  24. S. Martinengo, G. Ciani and A. Sironi, J. Chem. Soc., Chem. Commun., 1979, 1059 RSC.
  25. A. Fumagalli, L. Garlaschelli and R. D. Pergola, J. Organomet. Chem., 1989, 362, 197 CrossRef CAS.
  26. A. Ceriotti, G. Longoni, M. Manassero, M. Sansoni, R. D. Pergola, B. T. Heaton and D. O. Smith, J. Chem. Soc., Chem. Commun., 1982, 886 RSC; A. Ceriotti, G. Longoni, R. D. Pergola, B. T. Heaton and D. O. Smith, J. Chem. Soc., Dalton Trans., 1983, 1433 RSC.
  27. A. Fumagalli, T. F. Koetzle and F. Takusagawa, J. Organomet. Chem., 1981, 213, 365 CrossRef CAS.
  28. A. Fumagalli, T. F. Koetzle, F. Takusagawa, P. Chini, S. Martinengo, B. T. Heaton and G. Longoni, Am. Cryst. Assoc., Ser. 2, 1980, 7, 16 Search PubMed.
  29. A. Fumagalli and G. Ciani, J. Organomet. Chem., 1984, 272, 91 CrossRef CAS.
  30. A. Fumagalli, S. Martinengo, D. Galli, C. Allevi, G. Ciani and A. Sironi, Inorg. Chem., 1990, 29, 1408 CrossRef CAS.
  31. F. Ragaini, F. Porta, A. Fumagalli and F. De Martin, Organometallics, 1991, 10, 3785 CrossRef CAS.
  32. B. T. Heaton, ACS Symp. Ser., 1983, 211, 227 CAS.
  33. S. Bhaduri, K. R. Sharma, W. Clegg, G. M. Sheldrick and D. Stalke, J. Chem. Soc., Dalton Trans., 1984, 2851 RSC.
  34. P. Braunstein, J. Dehand and J. F. Nenning, J. Organomet. Chem., 1975, 92, 117 CrossRef CAS.
  35. R. D. Adams, G. Chen, W. Wu and J. Yin, Inorg. Chem., 1990, 29, 4208 CrossRef CAS.
  36. L. J. Farrugia, J. A. K. Howard, P. Mitroprachachon and F. G. A. Stone, J. Chem. Soc., Dalton Trans., 1981, 1274 RSC.
  37. S. Martinengo, G. Giordano and P. Chini, Inorg. Synth., 1980, 20, 209.
  38. R. Ugo, F. Cariati and G. La Monica, Inorg. Synth., 1968, 11, 105 CAS.
  39. N. Walker, D. Stuart, DIFABS, Acta Crystallogr., Sect. A, 1983, 39, 158 Search PubMed.
  40. G. M. Sheldrick, SHELXTL, Version 5, Software Reference Manual, Siemens Industrial Automation Inc., Madison, WI, 1994 Search PubMed.
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