. 2017 Mar 6;121(13):7094–7100. doi: 10.1021/acs.jpcc.7b00319

Table 1. Photochemical and Thermodynamic Parameters for NB-1 and QC-2^a^,^b.

(λ_NB-1max, ε) (nm, M^–1 cm^–1)	(λ_QC-2max,_ε) (nm, M^–1cm^–1)	E_a (kJ mol^–1)	A (s^–1)	t_1/2,25°C (min)	ϕ*
(332, 8.3 × 10⁴), (391, 4.3 × 10⁴)	(320, 9.1 × 10⁴)	100.7	1.6 × 10¹⁴	78.6	0.15

Summary of calculated Arrhenius parameters for the thermal relaxation and photoisomerization quantum yield of QC-2 to NB-1.

ε, molar extinction coefficient of NB-1 (two maxima) and QC-2 (one maximum); E_a, activation energy for the thermal relaxation of QC-2 to NB-1 derived from the Arrhenius equation; A, pre-exponential factor; t_1/2 25 °C, half-life time of the thermal relaxation of QC-2 at 25 °C; ϕ*, photoisomerization quantum yield²⁵ of NB-1 to QC-2 obtained from the average of three separate measurements.

Table 1. Photochemical and Thermodynamic Parameters for NB-1 and QC-2a,b.

Table 1. Photochemical and Thermodynamic Parameters for NB-1 and QC-2^a^,^b.