. 2022 Jun 22;7(26):22244–22255. doi: 10.1021/acsomega.2c00935

v) at 298 K.

	log K₁₁	log K₁₂	log β^c	α^b
R1–OAc^–	3.59	2.95	6.54	0.92
R2–OAc^–	3.53	3.28	6.81	2.25
R3–OAc^–	3.31	2.92	6.22	1.63

Error less than 10%.

Parameter α is used to quantify the extent of cooperativity and is defined as α = 4K₁₂/K₁₁. If α > 1, positive cooperativity; α < 1, negative cooperativity; and α = 1, no cooperativity.^28,29

Overall constant (β) is given by β(M^–2) = K₁₁K₁₂.

Table 1. Logarithmic Binding Constants (log Ka) for Complexes between Receptors and OAc– Obtained by Fluorescence, in MeCN/DMSO 9:1 (v/v) at 298 K.

Table 1. Logarithmic Binding Constants (log K^a) for Complexes between Receptors and OAc^– Obtained by Fluorescence, in MeCN/DMSO 9:1 (v/v) at 298 K.