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- Title
Study on Fluorescence Recognition of Fe 3+ , Cr 2 O 7 2− and p -Nitrophenol by a Cadmium Complex and Related Mechanism.
- Authors
Liu, Lu; Li, Jian-Min; Wang, Hui-Jie; Zhang, Meng-Di; Xi, Yu; Xu, Jie; Huang, Yuan-Yuan; Zhang, Bo; Li, Ying; Zhang, Zhen-Bei; Zhao, Zi-Fang; Cui, Cheng-Xing
- Abstract
The effective detection of environmental pollutants is very important to the sustainable development of human health and the environment. A luminescent Cd(II) coordination complex, {[Cd(dbtdb)(1,2,4-H3btc)]·0.5H2O}n (1) (dbtdb = 1-(2,3,5,6-tetramethyl-4-((2-(thiazol-4-yl)-2H-benzo[d]imidazol-3(3aH)-yl)methyl)benzyl)-2,7a-dihydro-2-(thiazol-4-yl)-1H-benzo[d]imidazole, 1,2,4-H3btc = 1,2,4-benzenetricarboxylic acid), was obtained by hydrothermal reactions. Complex 1 has a chain structure decorated with uncoordinated Lewis basic O and S donors and provides good sensing of Fe3+, Cr2O72−, and p-nitrophenol with fluorescence quenching through an energy transfer process. The calculated binding constants were 3.3 × 103 mol−1 for Fe3+, 2.36 × 104 mol−1 for Cr2O72−, and 9.3 × 103 mol−1 for p-nitrophenol, respectively. These results show that 1 is a rare multiresponsive sensory material for efficient detection of Fe3+, Cr2O72−, and p-nitrophenol.
- Subjects
NITROPHENOLS; POLLUTANTS; FLUORESCENCE; FLUORESCENCE quenching; ENERGY transfer; BINDING constant; CADMIUM compounds
- Publication
Molecules, 2023, Vol 28, Issue 4, p1848
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules28041848