Figure 1.
a) Structure of rotaxane 1 and non‐interlocked axle 2 (R=CH2C(H)Ph2). b) Partial 1H NMR of i) 2, ii) 1, iii) 1⋅HBF4, iv) 1⋅HBF4+TBACl (2 equiv). 400 MHz, 1:1 v/v CDCl3/CD3CN, 298 K; peak assignment as in (a).
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