Molecular design of the phenol type extractants

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Table 4 The calculation of the generalised desirability function

Substitutions in o-position	Particular desirability functions				Generalised desirability functions
Substitutions in o-position	d₁( q)	d₂(log P)	d₃*(ΔE*_D)	d₄(MPC_W)	D ₃ ^*)	D ₄ ^**)
Without the substituent	0.690	0.689	0.400	0.290	0.579	0.476
-NO₂	0.430	0.700	0.500	0.500	0.494	0.505
-F	0.400	0.726	0.560	-	0.546	-
-Cl	0.700	0.771	0.530	0.250	0.659	0.495
-Br	0.690	0.792	0.550	-	0.669	-
-I	0.410	0.810	0.590	-	0.581	-
-OH	0.530	0.600	0.460	0.650	0.527	0.541

* D₃ was calculated by the equation $D_{3} = 3 \sqrt{d_{1} \times d_{2} \times d_{3}} .$
** D₄ was calculated by the equation $D_{4} = 4 \sqrt{d_{1} \times d_{2} \times d_{3} \times d_{4}},$