Fig. 6. Structures from the SN2 IRC shown in Fig. 5 projected into the (a) top two and (b) top three principal components of the SN2 system when using squared interatomic distances as the representations of structures that are input to PCA. The locations of structures A, B, C, and D from Fig. 5 with respect to these principal components are labelled. (c) The proportion of variance described by each principal component.
