Highly Fluorescent Supramolecular Nanoring Composed of Bent‐Shaped Cyanostilbene Derivatives and Cucurbit[8]urils.

Supramolecular organic frameworks (SOFs) made of organic guest molecule and cucurbit[8]uril (CB[8]) in aqueous solution have great potential for diverse applications. Herein, we designed highly fluorescent zero‐dimensional (0D) nano‐ring SOF with CB[8] as a host and novel bent‐shaped cyanostilbene guest. This host–guest complex successfully formed macrocyclic hexamer and showed significantly enhanced fluorescence (ΦF=68 %) compared to non‐assembled monomer (ΦF=2 %). Unlike other SOFs, this 0D SOF could be dispersed uniformly without bundling phenomenon in water. [ABSTRACT FROM AUTHOR]