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Anion-Induced Structural Diversity of Zn and Cd Coordination Polymers Based on Bis-9,10-(pyridine-4-yl)-anthracene, Their Luminescent Properties, and Highly Efficient Sensing of Nitro Derivatives and Herbicides.

08:00 EDT 9th April 2019 | BioPortfolio

Summary of "Anion-Induced Structural Diversity of Zn and Cd Coordination Polymers Based on Bis-9,10-(pyridine-4-yl)-anthracene, Their Luminescent Properties, and Highly Efficient Sensing of Nitro Derivatives and Herbicides."

Luminescent coordination polymers (CPs) of Zn or Cd and bis-9,10-(pyridine-4-yl)-anthracene (BA) show different 1D and 2D topologies depending on the anion used in the precursor. Compounds {[Zn(μ-BA)(MeOH)(p-Tos)]} (1) and {[Zn(μ-BA)(MeOH)(CFCO)]} (2) form linear structures and {BA@[Zn(μ-BA)(MeOH)(HO)](CFSO)} (3) featuring intercalation of uncoordinated BA molecules into linear ribbons. Cd-based CPs {[Cd(μ-BA)(ClO)]· n(DCM)} (4) and {[Cd(μ-BA)(MeOH)(Dioxane)(η-SiF)]·mDioxane} (5) form porous structures with 2D lattices. All complexes exhibit strong blue emission in the solid state with average lifetimes between 8 and 13 ns. The emission of compound 4 is sensitive to the presence of nitro aromatics, simazine, and trichloroanisole (TCA) and demonstrates nonlinear Stern-Volmer quenching kinetics. Limits of detection (LOD) of 15 and 16 ppb for picric acid and TCA were achieved, respectively.

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Name: Inorganic chemistry
ISSN: 1520-510X
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