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Chemical Compounds

In: Combinatorial Enumeration of Groups, Graphs, and Chemical Compounds

Author

Listed:
  • G. Pólya
  • R. C. Read

    (University of Waterloo, Department of Combinatorics and Optimization)

Abstract

The elements of a graph have their interpretation in chemistry, the vertices are atoms, the edges are bonds, the graph turns into a chemical (structural) formula. Conditions I and II in Sec. 29 become meaningful in chemical terms. Every edge terminating in two endpoints means that there are no free valences. The connectedness of a graph indicates that all atoms are tied together into a molecule. The number of edges ending in the same vertex corresponds to the valence of the atom: endpoints are atoms of valence one, vertices of degree k represent atoms of valence k.

Suggested Citation

  • G. Pólya & R. C. Read, 1987. "Chemical Compounds," Springer Books, in: Combinatorial Enumeration of Groups, Graphs, and Chemical Compounds, chapter 0, pages 58-74, Springer.
    • Handle: RePEc:spr:sprchp:978-1-4612-4664-0_4
    DOI: 10.1007/978-1-4612-4664-0_4
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