Electron Diffraction Study of Supersonically Generated Clusters

  • Yael Z. Barshad
  • Lawrence S. Barteil


Clusters of cyclopropane, n-butane, octafluorocyclobutane, neopentane, and hexafluorobenzene were produced in flows with neon carrier gas through a Laval nozzle. All gave liquid-like diffraction patterns except for C4F8 which gave Debye-Scherrer rings corresponding to 90 Â crystals. The algorithm RISM accounted qualitatively but not quantitatively for the structures of the liquid-like clusters, perhaps because the clusters are too cold and dense for the approximations in RISM to be satisfied.


Structure Function Laval Nozzle Electron Diffraction Study Crystalline Cluster Molecular Fluid 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    For a recent review, see L. S. Bartell, Chem. Rev. 86:491 (1986).CrossRefGoogle Scholar
  2. 2.
    L. J. Lowden and D. Chandler, J. Chem. Phys. 59:6587 (1973);ADSCrossRefGoogle Scholar
  3. 2a.
    L. J. Lowden and D. Chandler, ibid. 61:5228 (1974).ADSCrossRefGoogle Scholar
  4. 3.
    E. Johnson and R. P. Hazoumé, J. Chem. Phys. 70:1599 (1979).ADSCrossRefGoogle Scholar
  5. 4.
    A. H. Narten, E. Johnson, and A. Habenschuss, J. Chem. Phys. 73:1248 (1980);ADSCrossRefGoogle Scholar
  6. 4a.
    A. Habenschuss, E. Johnson, and A. H. Narten, J. Chem. Phys. 74:5234 (1981).ADSCrossRefGoogle Scholar
  7. 5.
    C. G. Gray and K. E. Gubbins, “Theory of Molecular Fluids,” Clarendon, Oxford (1984), Vol. 1.MATHGoogle Scholar
  8. 6.
    E. J. Valente and L. S. Barteil, J.Chem. Phys. 79:2683 (1983).ADSCrossRefGoogle Scholar
  9. 7.
    Y. Z. Barshad, Ph.D. Thesis, University of Michigan (1985).Google Scholar
  10. 8.
    D. E. Williams, Acta Cryst. A30:71 (1974).Google Scholar
  11. 9.
    D. E. Williams and D. J. Houpt, Acta Cryst. B42:286 (1986).Google Scholar
  12. 10.
    W. L. Jorgensen, J. D. Madura, and C. J. Swenson, J. Am. Chem. Soc. 106:6638 (1984).CrossRefGoogle Scholar
  13. 11.
    C. L. Yaws, “Physical Properties, a Guide,” McGraw-Hill, New York (1977).Google Scholar
  14. 12.
    Y. Z. Barshad and L. S. Bartell, to be published.Google Scholar
  15. 13.
    L. S. Bartell, L. Harsanyi, and E. J. Valente, Proceedings of this symposium.Google Scholar
  16. 14.
    G. T. Furakawa, R. E. McCoskey, and M. L. Reilly, J. Res. Nat. Bur. Stds. 52:11 (1954).Google Scholar
  17. 15.
    E. Szczésniak and J. R. Brookman, Mol.Phys. 48:1221 (1983).ADSCrossRefGoogle Scholar
  18. 16.
    C. F. Carter and D. H. Templeton, Acta Cryst. 6:805 (1953).CrossRefGoogle Scholar
  19. 17.
    J. Farges, M. F. de Feraudy, B. Raoult, and G. Torchet, Surf. Sci. 106:95 (1981).ADSCrossRefGoogle Scholar
  20. 18.
    C. E. Klots, Phys. Rev. Lett, (submitted).Google Scholar
  21. 19.
    J. P. Dumas, C. R. Acad. Sci. Paris C. 284:25C (1977).Google Scholar
  22. 20.
    E. J. Valente and L. S. Bartell, J. Chem. Phys. 80:1451 (1984).ADSCrossRefGoogle Scholar
  23. 21.
    L. S. Bartell, L. Sharkey, and X. Shi, to be published.Google Scholar

Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • Yael Z. Barshad
    • 1
  • Lawrence S. Barteil
    • 1
  1. 1.Department of ChemistryUniversity of MichiganAnn ArborUSA

Personalised recommendations