Fig. 2From: Similar compounds versus similar conformers: complementarity between PubChem 2-D and 3-D neighboring setsComparison of 2-D and 3-D neighbor overlap. Each pie chart indicates the count and percentage of compound neighbor pairs as a function of data set and overlap. Series A contains all structures in PubChem, while Series B uses the parent compound of salts and is restricted to just those structures with a computed 3-D description (see Table 1)Back to article page