Abstract
Two new coordination polymers {[Zn(L)(dma)]2·H2O}n (1) and {[Cd(L)(H2O)3]·dma·H2O}n (2) {H2L = 5‐[(pyren‐9‐ylmethyl)amino]isophthalic acid, dma = N,N‐dimethylacetamide} were synthesized by the reaction of H2L and zinc(II) or cadmium(II) nitrate in mixed solvents. Single‐crystal XRD analyses show that polymers 1 and 2 have 1D chain structures. Due to the existence of π···π stacking interactions in the crystal structure, 1 exhibits mechanoresponsive luminescence, and the fluorescence color changes from weakly yellow to noticeably greenish yellow after application of external mechanical stimulus. Compound 1 shows grinding‐size‐dependent fluorescent emission.
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