Binding enhancement factors (BEF = K_Ox/K_Red) for diffusive binding studies of 1.XB/HB in ACN or ACN/H₂O 99 : 1. — – not applicable.

	ACN			ACN/H2O 99 : 1
	1.XB	1.HB	Ratio XB/HB	1.XB	1.HB	Ratio XB/HB
Cl−	23.5	4.64	5.07	13.4	9.57	1.40
Br−	10.4	10.4	1.00	10.9	17.5	0.63
HSO4−	13.1	7.26	1.80	11.6	8.83	1.32
H2PO4−	1330	91.0	14.6	a	10.3	a
NO3−	6.6	—	—	7.63	—	—
BzO−	75.6	11.0	6.88	37.7	—	—

^aErrors too large for meaningful comparison.