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Randić's molecular connectivity index

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The Randić index, also known as the connectivity index, of a graph is the sum of bond contributions where and are the degrees of the vertices making bond i ~ j.

History

This graph invariant was introduced by Milan Randić in 1975.[1] It is often used in chemoinformatics for investigations of organic compounds.

Notes

  1. ^ Randić, M. (1975), "Characterization of molecular branching", Journal of the American Chemical Society, 97 (23): 6609–6615, doi:10.1021/ja00856a001.

References