Fig. 4
From: Control over multiple molecular states with directional changes driven by molecular recognition
Schematic illustrations of the transformations between states. a Route 1 (A1 → B → A2 → C → D → E). b Route 2 (A → C1 → D → C2 → E). The corresponding 1H NMR spectral changes of 1 (2.0 × 10−3 mol l−1) were recorded in MeCN-d3
