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References
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Scheme 1 Scheme of photooxidation by singlet oxygen relying on
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evidence for the photosensitized generation of O2 in the system.
1
The very weak O2 signal before lighting may be due to the TEMP
oxidation during the preparation of the test.14 To further access the
reactivity of sulfides with 1O2, PhSMe was added after the EPR signal
of TEMPO has been saturated. The addition of PhSMe obviously
decreased the EPR signal intensity of TEMPO with elongated reac-
tion time, which suggests the strong interaction between PhSMe and
ꢁ
1O2 (Fig. 4c). As mentioned before, O2 generated by electron
ꢂ
3
transfer from photoexcited 1 to O2 can also be effective for the
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the EPR technique with 5,5-dimethyl-1-pyrroline-N-oxide (DMPO)
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1
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ated from the energy-transfer process serves as the main reactive
species for the oxidation reaction.
In summary, a new visible-light-responsive coordination poly-
mer is constructed using an anthracene-based organic linker. The
synthesized CP is capable of aerobic photooxidation of sulfides.
The results demonstrate that the photocatalytic reaction is highly
efficient and selective to produce sulfoxides, avoiding overoxidation
to generate sulfones. Both spectroscopy studies and trapping
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This work is supported by the National Natural Science
Foundation of China (21473024), the Natural Science Foundation
of Jilin Province (20180101290JC) and Science and Technology
Research Project of Jilin Province (JJKH20170906KJ).
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