Cucurbit[n]uril-based host-guest interaction enhancing organic room-temperature phosphorescence of phthalic anhydride derivatives in aqueous solution

Abstract

Purely organic room temperature phosphorescence (RTP) materials in solid state have been widely researched, while water-soluble molecules with single structure and RTP emission in water are still rare. Here, cyan...

Emission-Tunable Room-Temperature Phosphorescent Two-Dimensional Polymer Network via a Photo-Cross-Linking Reaction

“…Dynamic covalent chemistry is a new strategy for chemists − that can be used to build complex molecular assemblies from discrete molecules, such as covalent–organic frameworks, , polymers, , and new supramolecules. − The dynamic reversible reaction must form covalent bonds between the components with all possible intermediates generated reversible, and the reaction should ideally be carried out without interfering with other functional groups in the molecule. The reactions used in the dynamic reversible chemistry can be divided into two categories.…”

Cucurbit[8]uril-based host–guest complexation enhancing afterglow of a naphthalimide derivative for anti-counterfeiting printing

“…Cucurbit[n]urils (CB[n]s), which exhibit particularly high binding affinity to positively charged species, 28,29 have been explored as ideal hosts for achieving organic RTP both in solid state and aqueous solution, 30,31 as the confined cavity could provide a rigid microenvironment to suppress nonradiative relaxation and isolate quenchers. [32][33][34] As is well known, the introduction of intramolecular charge transfer (ICT) could reduce the energy gap between singlet and triplet states, thereby accelerating the ISC process. 35 CB [8] could promote phosphorescence by enhancing intra/intermolecular charge transfer interaction.…”