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Azobenzene: a Visible‐Light Chemical Actinometer for the Characterization of Fluidic Photosystems
Author(s) -
Roseau Mélanie,
De Waele Vincent,
Trivelli Xavier,
Cantrelle Francois Xavier,
Penhoat Maël,
ChaussetBoissarie Laëtitia
Publication year - 2021
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.202100071
Subject(s) - actinometer , azobenzene , chemistry , photoisomerization , visible spectrum , photochemistry , photodissociation , optoelectronics , optics , nanotechnology , organic chemistry , isomerization , molecule , materials science , physics , plasma , quantum mechanics , catalysis
( E )‐Azobenzene is introduced as a suitable chemical actinometer in the visible spectral range (440–540 nm) for photon flux determination of fluidic microphotoreactors or for assessing efficiency of visible light photo‐induced reactions, its evaluation is straightforward without tedious analytics. Photoisomerization quantum yields (Φ E → Z ) of ( E )‐azobenzene were accurately determined upon irradiation at several wavelengths and in different solvents based on well‐known diarylethene.