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Abstract

Stable organic radicals with luminescent and stimuli-responsive features hold great promise in advanced materials. Here, Yang et al. report a pyridine-modified TTM radical (PyTTM) that exhibits exceptional photostability, rapid single-crystallization within 10 s, and reversible acid–base-responsive luminescence. Moreover, this radical also serves as a novel ligand to construct 1D coordination polymers. This work offers a new strategy for designing multifunctional radical-based materials. More details are discussed in the article on pages 2715—2721.