Table 1 Photophysical and thermodynamic properties of PMCs^a

	λ_PMC, ε_PMC (nm, 10⁴ M⁻¹cm⁻¹)^b	λ_em, Φ_f (nm, %)^c	λ_SIZ, ε_SIZ (nm, 10⁴ M⁻¹cm⁻¹)^d	PSD (%)^e	Φ_iso (%)^f	RY (%)^g	t_1/2 (min)^h	k (min⁻¹)ⁱ	E_a (kcal/mol)^j
PMC1	462, 2.90	566, 1.2	366, 0.26	99.5	12	100	577	0.0012	20.4
PMC2	517, 4.10	600, 1.7	412, 0.28	99.4	8.4	98.9	91.2	0.0076	17.9
PMC3	530, 6.20	607, 1.5	419, 0.40	99.1	6.8	100	28.9	0.024	16.4
PMC4	372, 2.48	510, 0.4	280, 1.28	95.8	8.5	52.8	72.2	0.096	15.8
PMC5	384, 1.85	510, 0.6	306, 1.12	97.0	5.4	45.4	257	0.0027	16.6
PMC6^k	617, 6.17	734, 1.3	438, 0.12	90.1	0.2	99.7	-	-	-
PMC7^k	607, 4.39	720, 7.6	434, 0.12	95.8	0.2	99.9	-	-	-

^aPMC1-5 were measured in water at 298 K, whereas PMC6 and PMC7 were measured in CH₂Cl₂.
^bAbsorption peak and molar absorptivity of PMC.
^cFluorescence peak and quantum yield (Φ_f) of PMC. It is noted that the PMCs show rather low Φ_f values.
^dAbsorption peak and molar absorptivity of SIZ.
^ePhotostationary state distribution of SIZ after irradiation.
^fPhotoisomerization quantum yield (Φ_iso) of PMC.
^gRecovery yield (RY) of the SIZ-to-PMC conversion after the first cycle.
^hHalf-life (t_1/2) of SIZ during the thermal recovery at room temperature.
ⁱFirst-order kinetic constant (k) of the SIZ-to-PMC conversion at room temperature.
^jApparent activation energy (E_a) of the SIZ-to-PMC conversion.
^kNo thermal conversion.

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