Table 1 Binding constants and thermodynamic parameters for the binding of cage 1 to guests 2 and 4, derived from ITC titrations.
From: Encapsulation within a coordination cage modulates the reactivity of redox-active dyes
Reaction | Ka (m−1) | ΔH (kJ mol−1) | −TΔS (kJ mol−1) | ΔG (kJ mol−1) |
|---|---|---|---|---|
2 + 1 → 2⊂1 | 2.8 (±1.0) × 105 | −17.5 (±3.9) | −13.9 (±4.5) | −31.4 (±0.9) |
2⊂1 + 2 → 22⊂1 | 4.0 (±0.4) × 106 | −33.7 (±1.0) | −4.3 (±1.3) | −38.0 (±0.3) |
4 + 1 → 4⊂1 | 1.0 (±0.4) × 105 | −13.6 (±0.8) | −15.2 (±1.8) | −28.8 (±1.0) |
4⊂1 + 4 → 42⊂1 | 1.2 (±0.2) × 107 | −33.3 (±0.9) | −7.5 (±1.3) | −40.8 (±0.4) |
