4-hydroxyazobenzene derivatives: SM-01 (-H), SM-02 (-NO2), SM-03 (-COOH), SM-04 (-CH3), SM-05 (-N(CH3)2), SM-06 (-CHO)
measurement: 365 nm photoisomerisation of SM solution at different exposure times recorded with absorption spectra
equipment: computer-controlled spectrophotometer (UV-2401 PC, Shimadzu, Kyoto, Japan)
exposure: 365 nm, file name indicates exposure time, room temperature
solution: 5*10-4M, THF, room temperature
materials: the 4-hydroxyazobenzene derivatives were purchased from Sigma-Aldrich, TCI, AmBee and Biosynth.
(2025-04)