Vit Ladanyi, Pavel Dvorak, Jamaludin Al Anshori, Lubica Vetrakova, Jakob Wirz and Dominik Heger, Azobenzene Photoisomerization Quantum Yields in Methanol Redetermined Photochem. Photobiol. Sci., 2017, 16, 1757-1761.


The quantum yields of azobenzene photoisomerization in methanol solution were redetermined using newly obtained molar absorption coefficients of its cis- and trans-isomers. The results differ substantially from those published previously, especially in the range of the n,pi* absorption band. Besides actinometry, these findings are relevant for applications of azobenzene derivatives in optical switching.