A novel coumarin hydrozone compound which exhibits piezochromic luminescence upon grinding was prepared. The piezofluorochromic properties were reversible upon fuming or heating. The intermolecular hydrogen bonds have been observed by single-crystal X-ray structural analysis, which are believed to make a major contribution to the piezofluorochromic properties.
H. Yu, W. Ren, H. Lu, Y. Liang and Q. Wang, Chem. Commun., 2016, 52, 7387 DOI: 10.1039/C6CC02937J
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