Fig. 4: Comparison of anionic guest exchange between 2 and 4.
From: Synthesis of covalently linked knotted cage frameworks
a–d, Schematic illustrations of the displacement of TfO− by ReO4− within 2 (a) and 4 (b). c and d show the traces of these processes within 2 and 4, respectively, as monitored by 1H NMR. The conversion data in panels c and d are presented as mean ± standard deviation, with each point calculated from six individual NMR signals (three pairs). See Supplementary Section 4 for details. The dashed lines in c and d indicate the time corresponding to the half-life of conversion.
