significantly stimulated the development of luminescent supramolecular materials. Its realization in self-shrinkable materials can both provoke academic interest and widen the number of innovative applications for actively moving systems. Herein, we proposed a novelmoleculardesignstrategy to give self-shrinkable AIE supramolecular gels via the use of three benzophenone salicylaldehyde hydrazine derivatives
1H and 13C NMR spectra of symmetric and asymmetric bis‐spiropyrans, Series 1‐3, were completely assigned. Especially, the 1H assignment of asymmetric spiropyrans was achieved by utilizing 1H–1H COSY and nOe experiments. All of the carbons in the dye molecules were investigated through a combination of heteronuclear 2D‐shift correlation spectroscopy (HETCOR), together with an attached proton test (APT)