Fig. 9From: Automated reaction database and reaction network analysis: extraction of reaction templates using cheminformaticsSubgraphs of radius n. The subgraph containing only the root atom has radius 0. Each subgraph of radius n + 1 contains all atoms connected to all atoms of the subgraph with radius n. In this example the carbon atoms around which the subgraphs are centered would be considered to be chemically identicalBack to article page