Conjugated Microporous Poly(Benzochalcogenadiazole)s for Photocatalytic Oxidative Coupling of Amines under Visible Light.
Metal-free visible-light photocatalysts offer a clean, sustainable solution to many pressing environmental issues. Herein, we present a molecular design strategy to fine-tune the valence and conduction band levels of a series of conjugated microporous polymer networks based on poly(benzochalcogenadiazole) for heterogeneous photocatalysis. Enhanced photocatalytic efficiency was observed by altering the chalcogene moieties in the electron-accepting benzochalcogenadiazole unit of the polymer backbone structure. Photooxidative coupling of benzylamines was chosen as a model reaction. This design strategy leading to enhanced efficiency could potentially improve a wide range of photoredox reactions.
Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.
Zi Jun
ZJ
Wang
Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.
Kim
K
Garth
Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.
Saman
S
Ghasimi
Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.
Katharina
K
Landfester
Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany. kai.zhang@mpip-mainz.mpg.de.
Kai A I
KA
Zhang
D000588:Amines / Q000737:chemistry*; D002384:Catalysis; D008027:Light; D058451:Oxidative Coupling; D055668:Photochemical Processes; D016062:Porosity; D013830:Thiadiazoles / Q000737:chemistry*
D000588:Amines; D013830:Thiadiazoles; C015700:benzo-1,2,3-thiadiazole
bandgap alignment; conjugated microporous polymers; metal-free; organic catalyst; photocatalysis