Zhang, Jing-Wen published the artcileDonor-acceptor carbon nitride with electron-withdrawing chlorine group to promote exciton dissociation, Name: 2-Amino-4,6-dichloropyrimidine, the publication is Chinese Journal of Catalysis (2021), 42(7), 1168-1175, database is CAplus.
Carbon nitride (C3N4) is promising for photocatalytic hydrogen production, but photogenerated electrons and holes in C3N4 usually tend to exist as excitons due to intrinsic Coulomb interactions making its photocatalytic activity unsatisfactory. Herein, a well-designed intramol. C3N4-based donor-acceptor (D-A) photocatalytic system was constructed to promote exciton dissociation Due to its good chem. compatibility with melamine and appropriate sublimation property, 2-amino-4,6-dichloropyrimidine unit was chosen as the monomer to react with melamine to construct intramol. D-A system (CNClx). The hydrogen evolution rate of CNCl0.15 is 15.3 times higher than that of bulk C3N4 under visible light irradiation, with apparent quantum efficiency of 13.6% at 420 nm. The enhanced activity is attributed to introduced electron-withdrawing -Cl group as terminal group in the resulted CNClx samples, which can build internal elec. field to promote the exciton dissociation into free electron and hole. In addition, lower work function value of CNClx samples indicates that internal elec. field can help free electrons and holes transfer to the surface of CNClx samples for photocatalytic reaction.
Chinese Journal of Catalysis published new progress about 56-05-3. 56-05-3 belongs to pyrimidines, auxiliary class Pyrimidine,Chloride,Amine,API, name is 2-Amino-4,6-dichloropyrimidine, and the molecular formula is C15H14O3, Name: 2-Amino-4,6-dichloropyrimidine.
Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/Pyrimidine,
Pyrimidine – Wikipedia