Adaptable Blueprint for Non-metal Near-Infrared Organic Photocatalysts by Aromatic Sulfones DOI
Kazuya Yoshida, Toshiaki Suzuki, Vasudevanpillai Biju

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

We present a versatile approach to designing and utilizing high-performance nonmetal near-infrared (NIR) organic photocatalysts based on aromatic sulfones. Current NIR are mainly metal complexes inorganic materials, while the few reported primarily use photosensitization produce active species such as singlet oxygen. Our sulfone-rosamine-based redox photocatalyst 3 demonstrates exceptional capabilities, including high ability for metal-free photo-oxidative bromination, intrinsically oxygen-independent reactions, remarkable photostability with turnover number (TON) exceeding 2800. showcase photocatalyst's efficacy in bromination of compounds under 738 nm illumination. The reaction mechanism is elucidated through electrochemical studies, time-resolved spectral measurements, DFT calculations. Transient absorption measurements using randomly interleaved pulse train (RIPT) method reveal photoexcited state reaction. demonstrated its versatility several substances, those exhibiting strong light visible region. This sulfone-based offers robust blueprint developing superior photo-oxidation stability, addressing key limitations conventional photocatalysts.

Language: Английский

Adaptable Blueprint for Non-metal Near-Infrared Organic Photocatalysts by Aromatic Sulfones DOI
Kazuya Yoshida, Toshiaki Suzuki, Vasudevanpillai Biju

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

We present a versatile approach to designing and utilizing high-performance nonmetal near-infrared (NIR) organic photocatalysts based on aromatic sulfones. Current NIR are mainly metal complexes inorganic materials, while the few reported primarily use photosensitization produce active species such as singlet oxygen. Our sulfone-rosamine-based redox photocatalyst 3 demonstrates exceptional capabilities, including high ability for metal-free photo-oxidative bromination, intrinsically oxygen-independent reactions, remarkable photostability with turnover number (TON) exceeding 2800. showcase photocatalyst's efficacy in bromination of compounds under 738 nm illumination. The reaction mechanism is elucidated through electrochemical studies, time-resolved spectral measurements, DFT calculations. Transient absorption measurements using randomly interleaved pulse train (RIPT) method reveal photoexcited state reaction. demonstrated its versatility several substances, those exhibiting strong light visible region. This sulfone-based offers robust blueprint developing superior photo-oxidation stability, addressing key limitations conventional photocatalysts.

Language: Английский

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