Table 1. Statistically corrected stability constants K ₁, K ₂ and K ₃, as defined in Fig. 3, measured in CH₂Cl₂ at 298 K for pyridine + CPDIPS-ZnP1 (K ₁), NiP2 + CPDIPS-ZnP2 (K ₂) and NiP4 + CPDIPS-ZnP4 (K ₄). These values of K ₁, K ₂ and K ₃ were used to calculate the values of EM₁, (EM₂EM₃)^0.5, β _1 : 1, β _1 : 2, β _2 : 2 and β _2 : 3 as explained in Fig. 3 and 5 .

K 1	(1.4 ± 0.1) × 104 M–1
K 2	(5.0 ± 0.7) × 108 M–1
K 4	(1.8 ± 0.6) × 1018 M–1
EM1	0.3 ± 0.1 M
(EM2EM3)0.5	2.1 ± 0.4 M
β 1 : 1	(5.4 ± 1.6) × 1018 M–1
β 1 : 2	(1.8 ± 0.8) × 1027 M–2
β 2 : 2	(8.9 ± 5.2) × 1035 M–3
β 2 : 3	(8.1 ± 7.1) × 1053 M–4