In:
CrystEngComm, Royal Society of Chemistry (RSC), Vol. 24, No. 36 ( 2022), p. 6376-6384
Abstract:
Two coordination polymers, namely {[Cd 3 (TIYM) 2 (5-SASS) 2 (H 2 O) 2 ]·H 2 O} n (1) and {[Zn 2 (TIYM)(5-SASS)(μ 2 -OH)]·5H 2 O} n (2), were assembled using a mixed ligand strategy with the semi-rigid linker tetrakis(imidazol-1-ylmethyl)methane (TIYM) and 5-sulfoisophthalic acid sodium salt (5-SASS). Luminescence studies reveal that compounds 1 and 2 show strong fluorescence and exhibit efficient luminescence quenching in detecting UO 2 2+ cations, Cr 2 O 7 2− /CrO 4 2− anions, and the NFT antibiotic in aqueous media, and can thus serve as promising sensors. The detection limits of compounds 1–2 are 1.96 × 10 −4 /1.36 × 10 −4 M for UO 2 2+ cations, 6.53 × 10 −5 /5.41 × 10 −5 M for Cr 2 O 7 2− anions, 2.29 × 10 −4 /1.04 × 10 −4 M for CrO 4 2− anions, and 5.62 × 10 −5 /4.74 × 10 −5 M for the NFT antibiotic, respectively, indicating that the two CPs are promising multi-functional luminescent sensors. Additionally, the possible mechanisms for luminescence quenching have been investigated using spectral overlap experiments and DFT calculations.
Type of Medium:
Online Resource
ISSN:
1466-8033
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2022
detail.hit.zdb_id:
2025075-7
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