ArticleChemical science2026
Spatially confined single-molecule folding achieves multicolor phosphorescence.
Article in Chemical science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
Possessing two ethylene units, guest triphenylamine derivatives are encapsulated by the cucurbit[8]uril (CB[8]) cavity to induce molecule folding to form a biaxial pseudorotaxane. Crucially, this structure facilitates the oriented polymerization of ethylene units exposed outside the cavity with acrylamide, producing a pure organic supramolecular polymer (p-TAPCB) that exhibits near-infrared (NIR) room-temperature phosphorescence (RTP) with a high quantum yield of 47.03% through the synergistic effect of macrocyclic confinement and polymerization. By adjusting the ratio of CB[8], the resulting copolymers show tunable phosphorescence color that changes depending on the excitation wavelength and concentration. Furthermore, phosphorescence resonance energy transfer (PRET) is employed in triphenylenylborate (TPE) donor-doped polymeric films to flexibly manipulate the NIR emission lifetime from 9.87 ms up to 1490 ms with a large Stokes shift (390 nm). With the advantages of variable emission color and on-demand lifetime, these materials have potential applications in dynamic information encryption.
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