Extended Data Fig. 4: Peak positions of hydrogen densities in methyl and methylene groups.

(a) The same density plots as in Fig. 4b, c but in C-H3 (methyl) bonds from the SX and rt-ED structures in green and yellow, respectively. (b) The same plots as in (a) but in C-H2 (methylene) bonds. Gray horizontal lines refer to a density level of 1.5σ, and vertical lines represent the positions of the hydrogen nuclei, obtained by ND studies25.