Additions and corrections

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Calix[4]pyrrole-based anion transporters with tuneable transport properties

Masafumi Yano, Christine C. Tong, Mark E. Light, Franz P. Schmidtchen and Philip A. Gale

Org. Biomol. Chem., 2010, 8 (DOI: 10.1039/c0ob00128g)

In Table 2 the errors quoted for K_ass and ΔH^o are incorrect. The correct values are given below.

Table 2: Thermodynamic state functions of the 1:1 complexation of tetraalkylammonium salts by triazolo-calixpyrrole 3 as measured by ITC in acetonitrile at 303 K.

entry	salt	Kass / M^-1	DG^o/kcal mol^-1	DH^o/kcal mol^-1	TDS^o/kcal mol^-1
4^10	TEA chloride ^a	2.6 ± 0.26 x 10^6	-8.89	-11.88 ± 0.05	-2.9
5	TEA chloride ^b	1.3 ± 0.15 x 10^6	-8.47	-12.0 ± 0.05	-3.5
6	TEA benzoate ^b	6.0 ± 0.07 x 10^3	-5.23	-9.90 ± 0.05	-4.7
7	TBA p-nitrobenzoate^a	1.3 ± 0.04 x 10^3	-4.32	-8.54 ± 0.12	-4.2
8	TBA acetate ^a	1.6 ± 0.16 x 10^5	-7.23	-13.1 ± 0.1	-5.9
9	TBA fluoride .3H2O^a	1.5 ± 0.20 x 10^5	-7.19	-11.3 ± 0.2	-4.1
10	TEA isocyanate ^b	1.1 ± 0.01 x 10^6	-8.38	-13.3 ± 0.04	-4.9
11	TBA H2PO4^-^b	7.8 ± 0.08 x 10^3	-5.39	-5.14 ± 0.01	+0.2
12	TEA hydrogencarbonate ^b	2.0 ± 0.10 x 10^5	-7.36	-11.4 ± 0.06	-4.0

a) host solution titrated into guest solution; b) guest solution added into host solution

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The Royal Society of Chemistry apologises for this error and any consequent inconvenience to authors and readers.

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