A cucurbit[8]uril-stabilized 3D charge transfer supramolecular polymer with a remarkable confinement effect for enhanced photocatalytic proton reduction and thioether oxidation

Abstract

A highly water-soluble tetrahedral compound T1 that contains one tetraphenylmethane core and four 2-oxynaphthelene-CH2-4,4’-bipyridinium (NP-CH2-DIPY) side arms has been prepared. Control experiments reveal that NP-CH2-BIPY undergoes antiparallel dimerization which is...

Electrochemically Induced Conformational Change of Di‐Boronic Acid‐Functionalized Ferrocene for Direct Solid‐State Monitoring of Aqueous Fluoride Ions

“…(Figure 2A), implies a FDBA–F − complex formation as seen in supramolecular host‐guest binding. [ 69 ]…”

“…(Figure 2A), implies a FDBA-F − complex formation as seen in supramolecular host-guest binding. [69] FTIR-ATR was used to measure the chemical and structural changes that occurred within the FDBA sensor upon electrooxidative treatment, both before and after fluoride exposure. SWV oxidation was conducted with the sensor in an aqueous environment (DI water) with and without F − anions (from NH 4 F).…”

Self-assembled supramolecular materials for photocatalytic H2 production and CO2 reduction

“…Additionally, the D-A interaction can also be introduced to the SOFs to generate more 3D assembly patterns. In 2022, the Li group reported a more stable 3D supramolecular polymer system through a [2 + 2] binding motif from assembly of 24 and CB [8], in which two CB [8] rings encapsulate a dimer of CT complex (figure 15) [104]. As a water soluble porous supramolecular polymer, it also exhibited a confinement effect for enhancement of the proton reduction to produce H 2 coupling with a L-methionine thioether oxidation reaction in water driven by visible light.…”

CB[10]-driven self-assembly of a homotrimer from a symmetric organic dye: tunable multicolor fluorescence and higher solid-state stability than that of a CB[8]-included homodimer

“…5,[23][24][25][26][27][28][29][30] In particular, cucurbit [8]uril has been successfully applied for the selective generation of dimers of conjugated molecules in its cavity by forming ternary complexes. [31][32][33][34] In most cases, the monomers are designed to contain electronrich and deficient segments, and two such molecules stack in an antiparallel manner in the cavity of CB [8], [35][36][37][38][39][40][41][42][43][44] which can be stabilized by intermolecular donor-acceptor interaction and avoiding the stacking-caused quadrupole repulsion of identical aromatic subunits. 45 More recently, this strategy has been extended to the formation of a stacked trimer through the encapsulation of cucurbit [10]uril (CB [10]) for a viologenbenzimidazole conjugate.…”