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. Author manuscript; available in PMC: 2010 Dec 29.

Published in final edited form as: Biochemistry. 2009 Dec 29;48(51):12305–12313. doi: 10.1021/bi901694s

Table 5.

Correlation analyses of log k_red for para-substituted N,N'-dibenzyl-1,4-diaminobutanes with hydrophobic, steric and electronic parameters.

	pH 6.6		pH 8.6

Parameter	Coefficient	χ²	Coefficient	χ²
σ	−0.45 ± 0.30	0.53	−1.02 ± 0.36	0.77
σ⁺	−0.31 ± 0.16	0.43	−0.64 ± 0.17	0.53
σ⁻	−0.14 ± 0.50	0.75	−0.69 ± 0.76	1.69
σ_I	0.23 ± 0.86	0.75	−0.37 ± 1.38	1.94
π	−0.05 ± 0.40	0.76	−0.42 ± 0.62	1.80
V_W	0.39 ± 0.03	0.02	0.58 ± 0.12	0.32
E_S	−0.20 ± 0.13	0.23	−0.13 ± 0.20	0.52

V_W	0.36 ± 0.02	0.0088	0.40 ± 0.04	0.0156
σ⁺	−0.06 ± 0.03		−0.37 ± 0.04

V_W	0.37 ± 0.02	0.0087	0.45 ± 0.02	0.00702
σ	−0.09 ± 0.05		−0.59 ± 0.04