Improving Photocatalytic Performance through the Construction of a Supramolecular Organic Framework

Abstract

A supramolecular organic framework-type photocatalyst, named TM-SOF, is constructed by the self-assembly of cucurbit [8]uril and a tetra-arm monomer containing four N, N'-dimethyl 2,5-bis(4-pyridinium)thiazolo [5,4-d]thiazole (MPT) moieties. Benefiting from the multivalent assembly, a photocatalytically active supramolecular MPT dimer can be stably formed in TM-SOF. In addition, TM-SOF exhibits better stability against temperature, substrate, and light irradiation. As a result, TM-SOF shows a significantly improved performance for the photocatalytic aerobic oxidation of aryl boronic acids and thioethers. It is anticipated that this line of research will provide a facile approach for fabricating high-performance supramolecular photocatalysis systems.

Construction of a novel pyrene-based two-dimensional supramolecular organic framework and the selective regulation of reactive oxygen species for photocatalysis

“…53,54 However, despite being potential photocatalysts due to their porous structure and homogeneous solubility, their application in photocatalytic organic conversion has been limited to several scattered reports. 34,55…”

“…53,54 However, despite being potential photocatalysts due to their porous structure and homogeneous solubility, their application in photocatalytic organic conversion has been limited to several scattered reports. 34,55 As a classic organic chromophore with multiple substitution sites, pyrene derivatives have been widely used to construct MOFs 56,57 and COFs [58][59][60][61][62] due to their exible synthesis and photoelectric properties. However, the application of pyrene derivatives in the construction of SOFs has rarely been reported.…”

“Gear-driven”-type chirality transfer of tetraphenylethene-based supramolecular organic frameworks for peptides in water

“… 11 These CB[8]-based SOFs could easily realize various functions by utilizing different functional units as building blocks and encapsulating different guest molecules. 12 In particular, as a unique class of supramolecular polymers, employing SOFs as a class of tools for specifically recognizing natural chiral biomolecules ( e.g. , amino acids and peptides) for broader biological applications is worth being explored.…”

Tetraphenylethylene-based photoresponsive supramolecular organic framework and its metallization for photocatalytic redox reactions

“…[24][25][26][27][28][29][30] Their advantages in succinct synthesis under mild conditions and consistent solubility in normal solvents, including water, endow them with distinguished properties for wide applications, even in homogeneous catalytic reactions. [31][32][33][34][35][36][37][38][39] Owing to their structural regularity and synthetic tunability, SOFs offer a fascinating opportunity to arrange light-harvesting antennae and catalytic centers in a hierarchical way for photocatalytic reactions. Although considerable attention has been devoted to the assemblies of SOFs by host-guest interactions thus far, [40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56] the fabrication of photoresponsive SOFs for photocatalytic applications still needs to be deeply investigated.…”