Two new luminescent Cd(II)/Zn(II) metal–organic frameworks for exceptionally selective detection of picric acid explosives |
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| Affiliation: | 1. State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, P. R., China;2. School of Chemistry and Chemical Engineering, Huangshan University, Huangshan 245041, P. R., China |
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| Abstract: | Two new coordination polymers, {Cd(BIDPT)(oba)]·0.5H2O}n (1) and {Zn(BIDPT)(4,4′-sdb)]·2.25H2O}n (2) (BIDPT = 4,4′-bis(imidazol-l-yl)diphenyl thioether, H2oba = 4,4′-oxydibenzoic acid, 4,4′-H2sdb = 4,4′-sulfonyldibenzoic acid), have been solvothermally synthesized and characterized. Both 1 and 2 show 2-fold interpenetrating 3D frameworks with {65 ? 8} cds and {66} dia topology, respectively. These two coordination polymers show strong luminescence and their luminescence could be quenched by a series of nitro explosives. Importantly, they exhibit very highly sensitive and selective detection of picric acid compared to other nitro explosives. |
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