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In this work, the products formed by the reaction between 2,3-dibromonaphthalene-1,4-dione with (pyridine-2-yl)methanamine and (pyridine-4-yl)methanamine are discussed in detial. The products 2-amino-3-bromonaphthalene-1,4-dione (A) and 2-aminonaphthalene-1,4-dione (B(1)) obtained are characterized through H and C-NMR, FTIR, mass spectrometry, single-crystal X-ray diffraction experiments, which are in conjunction with wB97X based density functional theory. compound A can effectively and selectively detect Hg and Ni ions, and proposes a potential mechanism of action.

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