Table 1 Binding constants of host–guest complexes.

Host	Guest	Log(K_a)	ΔG (kcal mol⁻¹)^e
H₂1	V1	7.29 ± 0.26^a	−9.95 ± 0.16
Mn1	V1	3.68 ± 0.16^b	−5.02 ± 0.10
H₂1	V2	5.78 ± 0.30^a,c	−7.88 ± 0.18
Mn1	V2	4.20 ± 0.17^b	−5.72 ± 0.11
H₂1	VP_var	~7.4^a,d	−10 to −11
Mn1	VP	3.23 ± 0.18^b	−4.40 ± 0.10

^aBinding constants were determined by UV–Vis titrations in CHCl₃/CH₃CN 1:1 (v/v).
^bBinding constants were determined by PRE NMR titrations in CHCl₃/CDCl₃/CD₃CN 1:4:5 (v/v/v).
^cValue taken from ref. ³³.
^dValue taken from refs. ^{40, 41} at 23 °C for a similar polymeric structures as VP, which, however, had variable poly-THF chain lengths (34–88 monomer units).
^eCalculated for T = 25 °C.

Quick links

Search