Abstract
Fluorescent coordination polymers have drawn extensive attention in sensing applications. Herein, we report a carbazole-based one-dimensional coordination polymer [CdL(H2O)(DMF)2]·DMF (CdL, H2L = 9H-carbazole-2,7-dicarboxylic acid, DMF = N,N-dimethylformamide). In CdL, each Cd2+ ion is four-bridged by carboxylates, which is further linked by the carbazole units to form a one-dimensional Cd–O–C chains along the c-axis. CdL displays high water stability in the pH range of 3–10. Luminescence experiments indicate that CdL could selectively detect Fe3+ during the concentration range of 0–0.1 mm in water with a Ksv of 8022 m−1 and picric acid (PA) within the concentration range of 0–0.05 mm in methanol solution with a Ksv of 17948 m−1 respectively. The above results reveal that CdL can be applied as a multiresponse luminescence sensor for selectively sensing for Fe3+ in water and PA in methanol solution.
Original language | English |
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Article number | e5692 |
Journal | Applied Organometallic Chemistry |
Volume | 34 |
Issue number | 8 |
DOIs | |
State | Published - 1 Aug 2020 |
Keywords
- Fe
- coordination polymers
- fluorescence
- picric acid
- sensor