View PDF Version
 
DOI: 10.1039/A800010G (Paper) Reference Section for: J. Chem. Soc., Dalton Trans., 1998, 1321-1326

Cycloheptatriene: a new versatile co-ordination ligand. Synthesis and structural characterization of [Ru6C(CO)17] derivatives

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

Dario Braga, Fabrizia Grepioni, Laura Scaccianoce and Brian F. G. Johnson

Abstract

The reaction of [Ru6C(CO)17] and cycloheptatriene (CHT) gives rise to the formation of several products which have been fully characterized in solution and by single-crystal X-ray diffraction as [Ru6C(CO)15(ENBD)] 1 (ENBD = ethylenenorbornadiene), [Ru6C(CO)14(C7H8)] 2 and [Ru6C(CO)11(η5-C7H9)(µ3-η2∶η2∶η3-C7H7)] 3. Compounds 2 and 3 provide an example of the co-ordinative variability of carbocyclic rings based on the C7-frame. The ligand in 1 contains nine carbon atoms and is formed from C7H9 by an unknown process. The CHT molecule has also been observed to convert to toluene through a ring contraction activated by the cluster to form the known compound [Ru6C(CO)14(η6-C6H5CH3)] 4.

References

  1. D. Braga, P. J. Dyson, F. Grepioni and B. F. G. Johnson, Chem. Rev., 1994, 94, 1585 CrossRef CAS .
  2. E. L. Muetterties and S. T. Olin, Bull. Soc. Chim. Belg., 1975, 84, 959 CAS .
  3. E. L. Muetterties, Science, 1977, 196, 839 CAS .
  4. J. F. Roth, J. H. Craddock, A. Hershman and F. E. Paulik, Chem. Technol., October 1971600 Search PubMed ; Chem. Eng. News, 26 April 1971, 30 Search PubMed .
  5. R. Gomer(Editor), Topics in Applied Physics, Springer-Verlag, New York, 1975, vol. 4 Search PubMed .
  6. M. C. Tsai, C. M. Friend and E. L. Muetterties, J. Am. Chem. Soc., 1982, 104, 2539 CrossRef CAS ; M. E. Bussel, F. C. Henn and C. T. Campbell, J. Phys. Chem., 1992, 96, 5978 CrossRef CAS ; F. C. Henn, A. L. Diaz, M. E. Domagala and C. T. Campbell, J. Phys. Chem., 1992, 96, 5965 CrossRef CAS ; M. B. Hugenschmidt, A. L. Diaz and C. T. Campbell, J. Phys. Chem., 1992, 96, 5974 CrossRef CAS .
  7. D. B. Brown, P. J. Dyson, B. F. G. Johnson, C. M. Martin, D. Parker and S. Parsons, J. Chem. Soc., Dalton Trans., in the press Search PubMed .
  8. A. Sirigu, M. Bianchi and E. Benedetti, Chem. Commun., 1969, 596 RSC ; D. Braga, F. Grepioni, P. Dyson, B. F. G. Johnson, P. Frediani, M. Bianchi and F. Piacenti, J. Chem. Soc., Dalton Trans., 1992, 2565 RSC .
  9. L. Farrugia, Acta Crystallogr., Sect. C, 1988, 44, 997 CrossRef .
  10. D. Braga, F. Grepioni, B. F. G. Johnson, H. Chen and J. Lewis, J. Chem. Soc., Dalton Trans., 1991, 2559 RSC .
  11. R. D. Adams and W. Wu, Polyhedron, 1992, 2121 .
  12. M. P. Gomez-Sal, B. F. G. Johnson, J. Lewis, P. R. Raithby and A. H. Wright, J. Chem. Soc., Chem. Commun., 1985, 1682 RSC .
  13. E. Keller, SCHAKAL 93, Graphical Representation of Molecular Models, University of Freiburg, 1993 .
  14. G. M. Sheldrick, Acta Crystallogr., Sect. A, 1990, 46, 467 CrossRef .
  15. G. M. Sheldrick, SHELX 92, Program for Crystal Structure Determination, University of Göttingen, 1993 .
Click here to see how this site uses Cookies. View our privacy policy here.