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Tracking Photocatalytic Sulfide Oxidation Reaction with Dioxygen Inside Water-Soluble Nanocages
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DOI：10.1021/acs.jpcc.6c03307.png)
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Abstract
En 中文
Spectroscopic identification of on-pathway reaction intermediates during the photocatalytic oxidation of organic sulfides with O2 has been a challenge, due to the transient nature of the reactive intermediates. Here, using a combination of femtosecond transient absorption spectroscopy along with low-temperature electron paramagnetic resonance spectroscopy, we identified the formation of an aromatic sulfide radical cation intermediate and a putative aromatic sulfide radical cation–O2 adduct formed inside a water-soluble supramolecular nanocavity. Our work demonstrates that cage-confined sulfide radical cation intermediates can lead to chemoselective sulfoxide formation driven by host–guest charge-transfer (CT) chemistry.
Keywords:
Cations
Charge transfer
Oxidation
Oxides
Sulfides
Journal
T
IF:
3.2
Papers:
1.2K
Citations:
4
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