Haroon, Haamid published the artcileMetal-Organic Framework-Derived p-Type Cu3P/Hexagonal Boron Nitride Nanostructures for Photocatalytic Oxidative Coupling of Aryl Halides to Biphenyl Derivatives, Related Products of catalysis-chemistry, the publication is ACS Applied Nano Materials (2022), 5(2), 2006-2017, database is CAplus.
The C-C coupling is an efficient route toward the synthesis of sym. biphenyls from aryl halides. Herein, a cost-effective visible nanophotocatalyst system (Cu3P/hBN), consisting of heterogeneous, nanoporous, and nanosized Cu3P (derived from HKUST MOF) and hexagonal boron nitride (hBN), is employed for the photocatalytic coupling of aryl halides. The catalyst efficiently executes the aryl halide coupling to biphenyls under visible light and in the presence of air at room temperature The electron/hole pairs can be readily generated upon visible light excitation of the Cu3P nanophotocatalyst, but the low band gap of Cu3P promotes the fast recombination of generated electrons/holes, thereby rendering Cu3P inefficient for photocatalysis. However, the association of a small amount of hBN, which is a structural analog of graphene and carbon nitride, with Cu3P to form the Cu3P/hBN composite promotes the separation of electrons as hBN can provide its surface to the excited electrons of Cu3P, making them active to act on surface-adsorbed active reactant mols., whereas the holes remain confined to the valence band of Cu3P. Cu3P is a P-type semiconductor that provides Cu (+1) active sites that change to Cu (+2) during the photocatalytic cycle. The oxidized active sites consisting of Cu (+2) promote further enhancement of electrostatic interactions between the catalyst and the attached aromatic halide mols. The excited electrons generated in the catalyst upon light exposure act on oxygen mols. to further lead to superoxide radical anion (O2-?) radical formation. The formed O2-? radicals then act on activated halide mols. and convert them to biphenyls.
ACS Applied Nano Materials published new progress about 613-33-2. 613-33-2 belongs to catalysis-chemistry, auxiliary class Benzene, name is 4,4′-Dimethyldiphenyl, and the molecular formula is C14H14, Related Products of catalysis-chemistry.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia