Lifetimes (k_obs), inverse lifetimes , and the hydration numbers (N_H2O) extracted from exponential fitting of the observed kinetic decays obtained from solutions containing Cm³⁺ (0.3 mg, 1.20 µmol) dissolved in aqueous solutions of HOTf_(aq) (0.11 M), (NH₄)O₂CMe_(aq):HO₂CMe_(aq) (0.1 M, 4 M, 15 M, pH 5).

Compound (matrix)	k obs (ms)		N H2O
Cm3+ HOTfaq (0.11 M)	0.065(1)	15.4	9.1(5)
Cm3+ (NH4)O2CMe(aq):HO2CMe(aq) (0.1 M, pH 5.5)	0.068(1)	14.7	8.7(5)
Cm3+ (NH4)O2CMe(aq):HO2CMe(aq) (4 M, pH 5.5)	0.153(2)	6.54	3.4(5)
Cm3+ (NH4)O2CMe(aq):HO2CMe(aq) (15 M, pH 5.5)	0.244(2)	4.10	1.8(5)