. Author manuscript; available in PMC: 2021 May 6.

Published in final edited form as: J Am Chem Soc. 2020 Apr 24;142(18):8243–8251. doi: 10.1021/jacs.0c00441

Table 4.

Fitting Statistics from the Multivariable Linear Fit to the Swain-Lupton Equation for the K_a Values for HS^–, HSe^–, Cl^–, and Br^–

Guest	ρ_f	ρ_r	I	p-value				R²	R²_adj.	%R
Guest	ρ_f	ρ_r	I	ρ_f	ρ_r	I	Model	R²	R²_adj.	%R
HS^–	1.00 ± 0.08	0.62 ± 0.04	−0.02 ± 0.03	< 0.01	< 0.01	0.50	< 0.01	0.99	0.99	38 ± 3
HSe^–	0.48 ± 0.09	0.27 ± 0.05	0.00 ± 0.03	0.01	0.01	0.94	0.01	0.96	0.93	36 ± 8
Cl^–	0.28 ± 0.06	0.25 ± 0.03	0.01 ± 0.02	0.02	< 0.01	0.71	0.01	0.97	0.94	47 ± 9
Br^–	0.26 ± 0.05	0.20 ± 0.03	0.00 ± 0.02	0.01	< 0.01	0.96	0.01	0.97	0.95	43 ± 8