. Author manuscript; available in PMC: 2014 Feb 12.

Published in final edited form as: J Chem Educ. 2013 Jan 2;90(2):198–202. doi: 10.1021/ed300117b

Table 2.

Calculation of Minimum Selectivity at Various Solvent Compositions for Window Analysis

	Compound a	Compound b	Compound c	Compound d	Compound e	Minimum selectivity (α)	Closest pair
ϕ	ln(k_a)	ln(k_b)	ln(k_c)	ln(k_d)	ln(k_e)	ln(k₂)-ln(k₁)
0.100	3.662	4.707	4.920	5.403	4.644	0.063	b and c
0.120	3.534	4.556	4.772	5.243	4.512	0.044	b and c
0.140	3.407	4.405	4.624	5.083	4.380	0.025	b and c
0.160	3.280	4.254	4.476	4.923	4.249	0.006	b and e
0.180	3.153	4.103	4.329	4.764	4.117	0.014	b and e
0.200	3.025	3.952	4.181	4.604	3.985	0.033	b and e
0.220	2.898	3.801	4.033	4.444	3.853	0.052	b and e
0.240	2.771	3.651	3.885	4.284	3.722	0.071	b and e
0.260	2.643	3.500	3.737	4.124	3.590	0.090	b and e
0.280	2.516	3.349	3.590	3.965	3.458	0.109	b and e
*0.300*	*2.389*	*3.198*	*3.442*	*3.805*	*3.326*	*0.116*	*c and e*
0.320	2.262	3.047	3.294	3.645	3.195	0.099	c and e
0.340	2.134	2.896	3.146	3.485	3.063	0.083	c and e
⁞	⁞	⁞	⁞	⁞	⁞	⁞	⁞
0.800	-0.793	-0.576	-0.253	-0.190	0.032	0.063	c and d