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. 2024 Nov 3;29(21):5202. doi: 10.3390/molecules29215202

Table 5.

Photophysical and photochemical parameters of 25o–30o in solution.

Compd. λmax/nm
(ε/104 M−1 cm−1)		 Φoc Φco Φf τf(ns) Solvent Ref.
23o 354 (10.64) 0.31 0.002 THF [30]
24o 305 (3.91) 0.094 0.006 hexane [31]
25o 354 (10.64) 0.04 1.0 × 10−3 0.93 4.2 CCl4 [32]
26o - 0.40 0.006 0.97 3.6 CCl4 [34]
27o - 0.34 1.5 × 10−3 - - EtOAc [36]
28o - 0.35 7.8 × 10−3 - - EtOAc [36]
29o - 0.34 1.2 × 10−3 - - EtOAc [36]
30o - 0.35 3.9 × 10−3 - - EtOAc [36]

λmax: absorption maximum; ε: molar absorption coefficient; Φoc: cyclization quantum yield; Φco: cycloreversion quantum yield; Φf: fluorescence quantum yield; τf: fluorescence lifetime.