Table 3. Summary of the Kinetic, Thermal, and Pressure Activation Parameters for the Solvation of 3_Cl^iPr, 3_I, and 3_dmso^iPr with Various Solvents^a.

compound	solvolysis by	105 × 310kobs/s–1 (6 × t1/2/days)	ΔH⧧/kJ mol–1	ΔS⧧/J K–1 mol–1	ΔV⧧/cm3 mol–1
3CliPr	DMSOd	0.35 (330)	85 ± 5	–78 ± 14	6.2 ± 0.6
	n-butanol	2.4 (48)	63 ± 1	–133 ± 1	12 ± 2
	H2Ob	5.2 (22)	52 ± 2	–162 ± 5	ndc
3IiPre	DMSOd	1.6 (72)	113 ± 3	25 ± 8	13 ± 0.5
	n-butanol	12 (9.6)	62 ± 2	–123 ± 5	20 ± 1
3dmsoiPr	H2Of	2.0 (58)	71 ± 4	–110 ± 13	–14 ± 2

^a[Complex] = 10–50 μM.

^b3_Cl^iPr is poorly soluble in water; the values are derived from the rate of appearance of definite UV–vis spectra.

^cNot determined.

^dDMSO containing 0.005% of water was used ([H₂O] = 2.77 × 10^–3 M).

^e3_I^iPr is completely insoluble in water.

^fExperiments performed using a saturated aqueous solution; [3_dmso^iPr] ≈ 10 μM (such a low concentration had to be used due to the very low solubility of this compound in water).