Figure 8.

Thermodynamically controlled syntheses of donor–acceptor MIMs. a) Synthesis of a [2]rotaxane R4 ⁴⁺ by slippage. b) Synthesis of a [2]catenane C5 ⁴⁺ that relies on dynamic imine chemistry. c) Synthesis of a [2]catenane C6 ⁴⁺ that relies on olefin metathesis. d) Synthesis of a [2]catenane C7 ⁴⁺ by an iodide‐mediated dynamic S_N2 substitution. Note that R4 ⁴⁺, C5 ⁴⁺, C6 ⁴⁺, and C7 ⁴⁺ are all supported by the requisite number of PF₆ ⁻ counterions.