Synthesis and characterisation of amino and bromo ring substituted derivatives of [Ru6C(CO)14L] (L = [2.2]paracyclophane)

(Note: The full text of this document is currently only available in the PDF Version )

Paul Schooler, Brian F. G. Johnson and Simon Parsons


Abstract

The synthesis, isolation and characterisation of two new cluster complexes [Ru6C(CO)14(C16H15NH2)] 1 and [Ru6C(CO)14(C16H15Br)] 2 are reported. An X-ray crystallographic study has shown that the 4-amino[2.2]paracyclophane ligand in the former compound is coordinated via its aniline ring in the novel µ31∶η2∶η2 mode. In contrast, correlation 1H NMR shows that the 4-bromo[2.2]paracyclophane ligand in the latter compound is coordinated via the unsubstituted ring. These observations are consistent with the relative activating and deactivating effects of the substituents.


References

  1. P. J. Dyson, B. F. G. Johnson and C. M. Martin, Trends Organomet. Chem., in the press Search PubMed.
  2. A. J. Blake, P. J. Dyson, B. F. G. Johnson and C. M. Martin, J. Chem. Soc., Chem. Commun., 1994, 1471 RSC.
  3. See for example: C. M. Martin, A. J. Blake, P. J. Dyson, S. L. Ingham and B. F. G. Johnson, J. Chem. Soc., Chem. Commun., 1995, 555 Search PubMed.
  4. D. Braga, F. Grepioni, P. J. Dyson, B. F. G. Johnson and C. M. Martin, J. Chem. Soc., Dalton Trans., 1995, 909 RSC.
  5. D. Braga, F. Grepioni, E. Parisini, P. J. Dyson, A. J. Blake and B. F. G. Johnson, J. Chem. Soc., Dalton Trans., 1993, 2951 RSC.
  6. D. J. Cram and N. L. Allinger, J. Am. Chem. Soc., 1955, 77, 6289 CrossRef CAS.
  7. D. J. Cram and A. C. Day, J. Org. Chem., 1966, 31, 1227 CrossRef CAS.
  8. D. Braga, F. Grepioni, P. J. Dyson, B. F. G. Johnson, P. Frediani, M. Bianichi and F. Piacenti, J. Chem. Soc., Dalton Trans., 1992, 2565 RSC.
  9. A. D. Hunter, L. Shilliday, W. S. Furey and M. J. Zaworotko, Organometallics, 1992, 11, 1550 CrossRef CAS.
  10. A. J. Blake, P. J. Dyson, S. L. Ingham, B. F. G. Johnson and C. M. Martin, J. Chem. Soc., Dalton Trans., 1995, 1063 RSC.
  11. D. Braga, F. Grepioni, E. Parisini, C. M. Martin, J. M. G. Nairn, J. Lewis and M. Martinelli, J. Chem. Soc., Dalton Trans., 1993, 1891 RSC.
  12. H. Hope, J. Bernstein and K. N. Trueblood, Acta Crystallogr., Sect. B, 1972, 28, 1733 CrossRef CAS.
  13. D. J. Cram and A. C. Day, J. Org. Chem., 1966, 31, 1227 CrossRef CAS.
  14. E. Sappa and L. Milone, J. Organomet. Chem., 1973, 61, 383 CrossRef CAS.
  15. S. Badhuri, H. Khwaja, N. Sapre, K. Sharma, A. Basu, P. J. Jones and G. Carpenter, J. Chem. Soc., Dalton Trans., 1990, 1313 RSC.
  16. A. J. Deeming and D. M. Speel, Organometallics, 1997, 16, 289 CrossRef CAS.
  17. F. A. Cotton and T. R. Felthouse, Inorg. Chem., 1981, 20, 600 CrossRef CAS.
  18. X-Shape, Stoe and Cie, Darmstadt, Germany, 1996.
  19. G. M. Sheldrick, SHELXTL version 5, Siemens Analytical X-ray Instruments, Madison, WI, 1995.
  20. P. T. Beurskens, G. Beurskens, W. P. Bosman, R. de Gelder, S. Garcìa-Granda, R. O. Gould, R. Israël and J. M. M. Smits, DIRDIF-96, Crystallography Laboratory, University of Nijmegen, 1996.
  21. G. M. Sheldrick, SHELXL-97, University of Göttingen, 1997.
Click here to see how this site uses Cookies. View our privacy policy here.