Configuration-independent AIE-active supramolecular polymers of cyanostilbene through the photo-stable host-guest interaction of pillar[5] arene

Supramolecular polymerization-enabled, configuration-independent aggregation-induced emission (AIE) systems of cyanostilbene were achieved through host-guest interactions between pillar[ 5] arene and nitrile triazole guests. Interestingly, host, control and control-guest lost its AIE upon photoisomerization due to the absence of host-guest interaction. H-1 NMR, DOSY NMR and fluorescence studies of the supramolecular polymers before and after UV irradiation clearly indicated the significant role of photo-stable host-guest interaction in enhancing and retaining AIE.