Families of Permutation Isomers

  • I. Ugi
  • J. Dugundij
  • R. Kopp
  • D. Marquarding
Part of the Lecture Notes in Chemistry book series (LNC, volume 36)

Abstract

The molecules of a pure and uniform chemical compound X are all chemically identical; although they may differ in shape at a given time, they interconvert spontaneously under the observation conditions. In chemistry it is customary to represent the stereochemistry of X by drawing some projection formula of a representative “molecular situation” belonging to X.

Keywords

Methane Assure Lution Racemate 

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References

  1. [1]
    J. Ugi, H. Klusacek, G. Gokel, P. Hoffmann and P. Gillespie, Angew. Chem., 82, 741 (1970); Angew. Chem. Int. Ed., 9, 703 (1970); see also: D. J. Klein and A. H. Cowley, J. Amer. Chem. Soc., 97, 1633 (1975); Hässelbarth and E. Ruch, Isr. J. Chem. 15, 112 (1977); R. Kopp, Dissertation, Techn. Universität München, 1979.CrossRefGoogle Scholar
  2. [2]
    J. Gasteiger, P. D. Gillespie, D. Marquarding and I. Ugi, Topics Curr Chem., 48, 1 (1974).CrossRefGoogle Scholar
  3. [3]
    The representation of permutational isomers by ligand permutations alone, without any explicit reference to skeletal indexing and to representations of skeletal symmetry [4] is an essential feature in the theory of chemical identity groups, enabling us to avoid the conceptual difficulties which arise from double indexing. In double indexing systems the ligands and the skeleton are indexed independently, or the indices of the skeletal sites are assigned to the ligands which belong to the respective sites [5].Google Scholar
  4. [4]
    J. Dugundji, D. Marquarding and I. Ugi, Chemica Scripta 9, 74 (1976); 11, 17 (1977).Google Scholar
  5. [5]
    see e.g.: E. Ruch and A. Schdnhofer, Theor. Chim. Acta, 10 91 (1968)CrossRefGoogle Scholar
  6. [6]
    see also: L. G. Harrison and T. C. Lacalli, Proc. Roy. Soc. London B 202, 361 (1977).CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • I. Ugi
    • 1
  • J. Dugundij
    • 2
  • R. Kopp
    • 1
  • D. Marquarding
    • 1
  1. 1.Organisch-Chemisches InstitutTechnischen Universität MünchenGarchingDeutschland
  2. 2.Department of MathematicsUniversity of Southern CaliforniaLos AngelesUSA

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