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. Author manuscript; available in PMC: 2009 Oct 1.
Published in final edited form as: J Am Chem Soc. 2008 Sep 6;130(39):13162–13166. doi: 10.1021/ja804976f

Table 1.

ITC titration data of 1, 1·F−, and 1·Cs+ measured at 298 Ka

Host Solvent Guest ΔH
(kcal/mol)		 TΔS(
kcal/mol)		 ΔG
(kcal/mol)		 Ka
(M-1)
1 CH3CN CsTPBb −6.7 1.3 −8.1 8.0 × 105
1·F− CH3CN CsTPBb −6.0 2.3 −8.3 1.2 × 106
1 CH3CN TBAFc −6.2 0.8 −7.0 1.3 × 105
1·Cs+ CH3CN TBAFc −7.2 −0.4 −6.8 1.1 × 105
1 CH3OH/CHCl3
(1/9, v/v)		 CsF −16.2 −8.6 −7.6 3.4 × 105
a

Errors estimated to be less than 15%.

b

CsTPB = cesium tetraphenylborate.

c

TBAF = tetrabutylammonium fluoride.