Binding affinities for triazole derivatives 1a and 1b.

	K a/M−1
	1a	1b
Cl−a	17 ± 1	197 ± 14
Br−a	9 ± 7	110 ± 35
I−a	<3	38 ± 9
NO3−a	—b	—b

^aAnions added as the TBA salt in d₆-acetone, data fitted to a 1 : 1 binding model using Bindfit.

^bPerturbations too small to obtain binding constant. Errors at the 95% confident limit.