Abstract
The present work reports the synthesis, characterization, and crystal structure of a neutral two-dimensional adenine-based luminescent coordination polymer (LCP) with Zn(II) metal nodes. The photoluminescence property of the d10 LCP [Zn(μ2-1H-ade)(μ2-SO4)] (1) has been exploited to use 1 as a dual detection probe for the selective sensing of Hg2+ and 2,4,6-trinitrophenol (TNP) in the aqueous phase from among a variety of cations and a pool of aromatic nitro compounds, respectively. Competitive fluorometric experiments involving a series of cation combinations or mixture of nitro compounds established 1 as an efficient and selective sensor for Hg2+ and TNP in aqueous solutions. The limits of detection for sensing of Hg2+ and TNP in aqueous solutions using LCP 1 are 70 and 0.4 nM, respectively. For in-field sensing applications, 1-coated test paper strips have been developed. They show luminescence upon exposure to UV radiation, and the luminescence intensity is quenched upon addition to aqueous solutions o...
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