TMeQ[6]-based supramolecular frameworks assembled through outer surface interactions and their potential applications

Double-cavity cucurbiturils: synthesis, structures, properties, and applications

“…, pH, electrochemical, chemical, and photochemical), and the low polarizability of the Q[ n ] cavity. 29,30,55,68–71 Therefore, Q[ n ]s have been effectively utilized to develop drug-delivery systems, 62,72,73 engage in biomolecular recognition, 74,75 create adsorptive separation materials, 76–80 fabricate supramolecular polymers, 81–85 and to establish chemical sensing ensembles. 86–88…”

CdS-Based Catalysts Derived from TMeQ[6]/[CdxCly]n−-Based Frameworks for Oxidation Benzylamine

“…Because of its good water solubility, TMeQ[6] is often used to replace the insoluble Q[6] in the study of Q[6]-based host–guest chemistry − and coordination chemistry, , which are related to the electrostatic potential nearly neutral cavity and negative portal carbonyl oxygen atoms of Q­[ n ]­s. Since 2014, when we first proposed the outer surface interaction of Q­[ n ]­s (OSIQ), particularly self- and anion-induced OSIQs, which relate to the electrostatic potential positive outer surface of Q­[ n ]­s, our group and others have carried out significant works in constructing Q­[ n ]-based supramolecular frameworks based on OSIQs. − Further investigations have revealed that Q­[ n ]-based coordination polymers and frameworks can be used for the recovery a variety of metal ions, , the preparation of various sensors, etc. − Among these polymers and frameworks, TMeQ[6] has shown diversity in the construction of TMeQ[6]-based supramolecular frameworks. For example, different TMeQ[6]-based supramolecular frameworks can be formed not only in different acid media but also in the same acid medium with different concentrations .…”

“…Since 2014, when we first proposed the outer surface interaction of Q­[ n ]­s (OSIQ), particularly self- and anion-induced OSIQs, which relate to the electrostatic potential positive outer surface of Q­[ n ]­s, our group and others have carried out significant works in constructing Q­[ n ]-based supramolecular frameworks based on OSIQs. − Further investigations have revealed that Q­[ n ]-based coordination polymers and frameworks can be used for the recovery a variety of metal ions, , the preparation of various sensors, etc. − Among these polymers and frameworks, TMeQ[6] has shown diversity in the construction of TMeQ[6]-based supramolecular frameworks. For example, different TMeQ[6]-based supramolecular frameworks can be formed not only in different acid media but also in the same acid medium with different concentrations . In addition, the acquisition of rare Q[7]-based coordination polymers by the accidental introduction of the [CdCl 4 ] 2– anion and the construction of Q­[ n ]-based coordination polymers and supramolecular frameworks by consciously using polychloride anions of various transition metal ions ([M d‑block Cl y ] n − ) were described. , These works not only prompted us to propose the concept of OSIQs but also enabled us to fully realize its important role, particularly for anion-induced OSIQs, in the construction of Q­[ n ]-based coordination polymers and supramolecular frameworks.…”

“…For example, different TMeQ [6]-based supramolecular frameworks can be formed not only in different acid media 21 but also in the same acid medium with different concentrations. 22 In addition, the acquisition of rare Q [7]-based coordination polymers by the accidental introduction of the [CdCl 4 ] 2− anion 26 and the construction of Q[n]-based coordination polymers and supramolecular frameworks by consciously using polychloride anions of various transition metal ions ([M d-block Cl y ] n− ) were described. 15,27 These works not only prompted us to propose the concept of OSIQs but also enabled us to fully realize its important role, particularly for anion-induced OSIQs, in the construction of Q [6] is promoted to form a supramolecular framework; 28 and in the form of [Cd 4 Cl 16 ] 8− , Q [10] is promoted to form a supramolecular framework.…”

Host–guest modes and supramolecular frameworks of complexes of tetramethyl cucurbit[6]uril with 4-chloroaniline and 4,4′-diaminostilbene

“…The charge distribution in cucurbit[ n ]uril itself is not uniform, which makes cucurbit[ n ]uril a permanent dipole 25 (the cavity of the cucurbit[ n ]uril has an electrically neutral potential, the outer surface has a positive potential, and the carbonyl portal shows a negative potential). This is conducive to the study of the host–guest chemistry 26–30 and coordination chemistry 31–35 of the cucurbit[ n ]uril, and to the construction of good reversible supramolecular organic frameworks 36,37 (SOFs).…”