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Robust Cooperative Photo‐oxidation of Sulfides without Sacrificial Reagent under Air Using a Dinuclear Ru II –Cu II Assembly
Author(s) -
Chao Duobin,
Zhao Mengying
Publication year - 2017
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201700930
Subject(s) - chromophore , ruthenium , catalysis , reagent , photocatalysis , photochemistry , chemistry , photoredox catalysis , excited state , copper , turnover number , visible spectrum , materials science , organic chemistry , physics , optoelectronics , nuclear physics
A molecular chromophore–catalyst assembly containing a chromophore ruthenium(II) center ( Ru IIchro) and a catalytic copper(II) center ( Cu IIcat) has been prepared easily. The assembly was employed for photocatalytic oxidation of sulfides without sacrificial reagent in the presence of dioxygen under blue light irradiation. Unprecedented turnover number (TON) up to 32 000 was achieved. It was elucidated that an electron transferred from excited state of chromophore Ru II *chroto Cu IIcatalong with generation of Cu Icatthat was further activated by O 2 . These results demonstrate a promising strategy for efficient cooperative photocatalytic reactions under air using the chromophore–catalyst assembly.