AI Article Synopsis
- * It reveals that full 2-electron photoreduction of PDI can be accomplished using UVC light, either through direct photoreduction in anaerobic conditions or indirect photoreduction in aerobic conditions via acetone ketyl radicals.
- * Additionally, this efficient photoreduction method can be extended to other dyes like naphthalenediimide (NDI) and methylviologen (MV), and it is particularly promising for future use in light-driven systems and materials.
Article Abstract
Photoreduction of perylenediimide (PDI) derivatives has been widely studied for use in photocatalysis, hydrogen evolution, photo-responsive gels, and organic semiconductors. Upon light irradiation, the radical anion (PDI⋅ ) can readily be obtained, whereas further reduction to the dianion (PDI ) is rare. Here we show that full 2-electron photoreduction can be achieved using UVC light: 1) in anaerobic conditions by 'direct photoreduction' of PDI aggregates, or 2) by 'indirect photoreduction' in aerobic conditions due to acetone ketyl radicals. The latter strategy is also efficient for other dyes, such as naphthalenediimide (NDI) and methylviologen (MV ). Efficient photoreduction on the minute time-scale using simple LED light in aerobic conditions is attractive for use in dissipative light-driven systems and materials.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10098730 | PMC |
| http://dx.doi.org/10.1002/chem.202202849 | DOI Listing |
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