The Urey — Bradley Force Constants of Trigonal Bipyramidal XY5 -Type Molecules

  • Robert A. Condrate
  • Kazuo Nakamoto
Part of the Developments in Applied Spectroscopy book series (DAIS, volume 3)


Normal coordinate analysis has been carried out for the trigonal bipyramidal XY5 -type molecules, and the results have been applied to SbCl5, SbF5, PCl5, and PF5 using the Urey—Bradley force field. It has been found that the introduction of an angle—angle interaction force constant to the simple Urey—Bradley force field is necessary to obtain good agreement between calculated and observed frequencies. The results provide consistent band assignments and force constants for the four molecules studied.


Force Constant Raman Line Band Assignment Normal Coordinate Analysis Bell Telephone Laboratory 
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  1. 1.
    H. Siebert, Z. anorg. u. allgem. Chem. 265:303 (1951).CrossRefGoogle Scholar
  2. 2.
    J. K. Wilmshurst and H. J. Bernstein, J. Chem. Phys. 27:661 (1957).CrossRefGoogle Scholar
  3. 3.
    G. L. Carlson, Spectrochim. Acta. 19, 1291 (1963).CrossRefGoogle Scholar
  4. 4.
    A. Maccoll, Proc. Roy. Soc. (New South Wales) 79:133 (1945).Google Scholar
  5. 5.
    J. S. Ziomek and C. B. Mast, J. Chem. Phys. 21:862 (1953)CrossRefGoogle Scholar
  6. 5.
    J. S. Ziomek, ibid, 22:1001 (1954).Google Scholar
  7. 6.
    P. C. Haarhoff and C. W. F. T. Pistorius, Z. Naturforsch. 14A:972 (1959).Google Scholar
  8. 7.
    J. K. Wilmshurst, J. Mol. Spectroscopy 5:343 (1960).CrossRefGoogle Scholar
  9. 8.
    L. K. Akers, Univ. Microfilms (Ann Arbor, Michigan) Publ. No. 12965 (1955).Google Scholar
  10. 9.
    J. Hiraishi, I. Nakagawa, and T. Shimanouchi, Abstracts of the International Symposium on Molecular Structure and Spectroscopy (Tokyo), A313 (1962).Google Scholar
  11. 10.
    T. Shimanouchi, „Force Constants of Small Molecules,” Private Publication. Tokyo (1962),Google Scholar
  12. 11.
    H. Moureau, M. Magat, and G. Wetroff, Proc. Ind. Acad. Sci. 8A:356 (1938).Google Scholar
  13. 12.
    M. Rouault, Ann. phys. 14:78 (1940).Google Scholar
  14. 13.
    J. Gaunt and J. B. Ainscough, Spectrochim. Acta 10:57 (1957).CrossRefGoogle Scholar
  15. 14.
    L. O. Brockway and J. Y. Beach. J. Am. Chem. Soc. 60:1836 (1938).CrossRefGoogle Scholar
  16. 15.
    H. S. Gutowsky and A. D. Liehr, J. Chem, Phys. 20:1652 (1952).CrossRefGoogle Scholar
  17. 16.
    J. P. Pemsler and W. G. Planet, J. Chem. Phys. 24:920 (1956).CrossRefGoogle Scholar

Copyright information

© Chicago Section of the Society for Applied Spectroscopy 1964

Authors and Affiliations

  • Robert A. Condrate
    • 1
  • Kazuo Nakamoto
    • 1
  1. 1.Department of ChemistryIllinois Institute of TechnologyChicagoUSA

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