2021
DOI: 10.1021/acs.cgd.0c01492
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Luminescent Zinc(II) Coordination Polymers of Bis(pyridin-4-yl)benzothiadiazole and Aromatic Polycarboxylates for Highly Selective Detection of Fe(III) and High-Valent Oxyanions

Abstract: The hydro­(solvo)­thermal reactions of Zn­(NO3)2·6H2O, bis­(pyridin-4-yl)­benzothiadiazole (BTD-bpy), and benzene-1,3,5-tricarboxylic acid (H3btc) or naphthalene-1,4-dicarboxylic acid (1,4-H2ndc) yielded the corresponding coordination polymers {[Zn2(Hbtc)2(BTD-bpy)­(MeOH)2]·MeOH} n (1) and {[Zn2(1,4-ndc)2(BTD-bpy)]·0.5MeOH·H2O} n (2), respectively. Compound 1 has a two-dimensional (2D) decorated layer structure of an sql net with sufficient free volumes of 19.8%. Compound 2 exhibits a three-dimensional (3D) … Show more

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Cited by 23 publications
(11 citation statements)
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“…27 The shift of the emission peaks is probably ascribed to the enhancement of skeleton rigidity by the coordination interaction of the ligands to Zn 2+ . 28,29 It is worth noting that the maximum emission peak of compound 1 suspension in DMF solvent exhibits a blue shift (370 nm excited on 290 nm) compared to that of the solid sample (Fig. S5†).…”
Section: Resultsmentioning
confidence: 98%
“…27 The shift of the emission peaks is probably ascribed to the enhancement of skeleton rigidity by the coordination interaction of the ligands to Zn 2+ . 28,29 It is worth noting that the maximum emission peak of compound 1 suspension in DMF solvent exhibits a blue shift (370 nm excited on 290 nm) compared to that of the solid sample (Fig. S5†).…”
Section: Resultsmentioning
confidence: 98%
“…Aromatic compounds (ACs) are a class of undesirable organic pollutants with a benzene ring in wastewater and can cause uorescence quenching in porous luminescent MOFs due to electron or energy transfer [28][29][30] . Considering the excellent luminescence properties of IUST-3 in aqueous solution, the ability of IUST-3 to detect aromatic compounds in aqueous media through luminescent sensing have been investigated.…”
Section: Sensing Of Aromatic Compoundsmentioning
confidence: 99%
“…The World Health Organization (WHO) has claimed a permissible limit of 50 μg/L for Cr(VI) in drinking water [ 20 ]. Lately, MOF/CP-based, fluorescence-sensory materials have been actively pursued as excellent platforms for the flourishing utilization in detection of Cr(III) and Cr(VI) ions though fluorescence quenching (turn off) effect [ 15 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 ]. However, there are still rare examples to achieve the detection of Cr(III) via the fluorescence enhancement (turn on) response [ 15 , 43 , 44 , 45 , 46 , 47 , 48 ] and fluorescence shift (ratiometric) effect [ 41 , 42 , 43 ].…”
Section: Introductionmentioning
confidence: 99%
“…As part of our ongoing work in fluorescence detection of hazardous chemical contaminants [ 39 , 40 , 41 , 42 , 43 , 44 , 49 , 50 , 51 , 52 ], we acquired, herein, a Zn(II)-based luminescent coordination polymer, namely [Zn(Br-1,3-bdc)(NI-mbpy-34)] n ( 1 , Br-1,3-bdc = 5-bromobenzene-1,3-dicarboxylate; NI-mbpy-34 = N -(pyridin-3-ylmethyl)-4-(pyridin-4-yl)-1,8-naphthalimide), featuring a three-dimensional (3-D) 2-fold interpenetrating cds net. Of note, coordination polymer 1 exhibited fluorescence emissions in solid-state and solvent suspensions, being a bifunctional fluorescence sensor for sensitively and selectively detecting chromium(III) cations and chromium(VI) oxyanions.…”
Section: Introductionmentioning
confidence: 99%