Multi-Responsive Eight-State Bis(acridinium-Zn(II) porphyrin) Receptor

Switchable molecular tweezers: design and applications

“…A similar strategy for controlling guest encapsulation was developed by de Rouville, Heitz et al They used a flexible architecture to modulate the photochemical properties of porphyrin-based tweezers 54 ( Figure 30a ) and their affinity to bipyridine guests [ 110 ]. Specifically, 54 also incorporates the pH-switchable acridinium unit discussed previously, which introduces another orthogonal pH stimulus into the functional material.…”

“…b) Cubic scheme showing the eight different states of 54 upon addition of 4,4′-bipy, nucleophiles, and electrons. Figure 30 was reproduced from [ 110 ] (© 2023 A. Edo-Osagie et al, published by American Chemical Society, distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International license, https://creativecommons.org/licenses/by-nc-nd/4.0/ ). This content is not subject to CC BY 4.0.…”