Fig. 1: Spectral properties of AzPy in DCM as a function of 365 nm and 450 nm light irradiation.
From: A cautionary tale of basic azo photoswitching in dichloromethane finally explained
a Irradiation of 60 μM AzPy in DCM by 365 nm light in 15 s intervals. Inset shows the \(n\to {{{{\rm{\pi }}}}}^{* }\) band. b Absorbance of the initial \({{{\rm{\pi }}}}\to {{{{\rm{\pi }}}}}^{* }\) band (312 nm) and the newly formed absorbance peak (340 nm) as a function of 365 nm irradiation time. c Irradiation of 60 μM AzPy in DCM by 450 nm light in 15 s intervals, showing typical trans-to-cis photoisomerization and competing thermal isomerization. Inset shows the \(n\to {{{{\rm{\pi }}}}}^{* }\) band. All UV-vis measurements were performed at 21 °C.
