A graph theoretic model for configurational isomerism
LE3 .A278 1976
1976
McLelland, J.
Acadia University
Bachelor of Science
Honours
Mathematics
Mathematics & Statistics
The mathematical definition of a graph is extended to model the chemical concept of configurational isomerism. This extension involves the ordering of the set of neighbors around each vertex of what is called a C-graph. This ordering is thought of as an assignment of a vertex's neighbors to locations in a geometric figure, whose rigid motions determine a group of permutations called the local shape at that vertex. Extensions of graph isomorphism are introduced which partition the class of all C-graphs into equivalence classes corresponding to the structural isomers and configurational isomers of chemistry. Sufficient theoretical machinery is developed to enumerate and simply describe the configurational isomers within a given structural isomer.
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