Abstract
Two coordination polymers {[Cd2(obtz)(Meip)2]•H2O}n (1) and {[Cd(obtz)(ndc)]•0.5H2O}n (2) were synthesized and characterized (obtz =1,2-bis(1,2,4-triazole-1-ylmethyl)benzene, Meip =5-methylisophthalate, ndc =1,4-naphthalenedicarboxylate). 1 shows a (4,5)-connected 3D network with the point symbol of (44.62)(44.64.82). 2 exhibits a (3,4)-connected 2D network with the point symbol of (3·82)(32.4·82.9). The luminescent properties of 1 and 2 dispersed in various kinds of solvents were investigated in detail. The quenching efficiencies of p-nitrophenol (p-NP), p-nitroaniline (p-NA), nitrobenzene (NBZ) and 1,3-dinitrobenzene (1,3-DNB) upon 1 are 90.5%, 82.5%, 16.7% and 2.3% at the concentration of 40ppm nitroaromatics analysts, and upon 2 are 95.0%, 60.5%, 9.0% and 16.0% at the concentration of 60ppm nitroaromatics analysts, respectively. 1 and 2 display high sensitivity in the detection of nitroaromatics, especially for p-nitrophenol and p-nitroaniline.
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