Line Plot from Scientific Research

Partial 1 H NMR spectra of 2 SbCl 6 (top, 700 MHz) and 4 SbCl 6 (bottom, 500 MHz). Full spectra are shown in Supplementary Figs. 26 and 32, respectively. The peaks of 2 are labelled according to the numbering scheme shown in Fig. 2. Asterisks denote signals corresponding to R 2 OH + (R = H or Et), formed as a byproduct from the reaction of the Et 3 O + reagent. Filled and hollow shape symbols represent pairs of inequivalent resonances that arise by breaking the tropylium C 2 symmetry upon forming the Dewar tropylium.

DOI