Citation: Gaofeng WANG, Shuwen SUN, Lixin Meng, Dequn PENG. Syntheses and fluorescent sensing properties of two coordination polymers based on 9, 9′-dihexyl-2, 7-di(pyridin-4-yl)fluorene[J]. Chinese Journal of Inorganic Chemistry, ;2026, 42(2): 331-339. doi: 10.11862/CJIC.20250260 shu

Syntheses and fluorescent sensing properties of two coordination polymers based on 9, 9′-dihexyl-2, 7-di(pyridin-4-yl)fluorene

Gaofeng WANG ^1,, ,
Shuwen SUN ¹ ,
Lixin Meng ² ,
Dequn PENG ^1,,

1.
Department of Applied Chemistry, Yuncheng University, Yuncheng, Shanxi 044000, China
2.
Science Experiment Center, Yuncheng University, Yuncheng, Shanxi 044000, China

Corresponding author: Gaofeng WANG, wgf1979@126.com Dequn PENG, pengdequn@ycu.edu.cn
Received Date: 8 August 2025
Revised Date: 3 November 2025

Figures(8)

Under solvothermal conditions, 1, 4-naphthalenedicarboxylic acid (H₂ndc) and 9, 9′-dihexyl-2, 7-di(pyridin-4-yl)fluorene (hfdp) reacted with Co²⁺ ions and Cd²⁺ ions to form two coordination polymers, [Co(hfdp)(ndc)(H₂O)]·DMA}_n (1) and {[Cd(hfdp)(ndc)(H₂O)]·DMA}_n (2), respectively (DMA=N, N-dimethylacetamide). Single-crystal X-ray diffraction analyses showed that both complexes 1 and 2 contain similar structures. Topological analysis indicates that complexes 1 and 2 have a {4⁴·6²} planar structure. In addition, both complexes reveal good thermal stability and fluorescence sensing performance. They exhibited good sensitivity and selectivity towards 2, 4, 6-trinitrophenol (TNP) by fluorescent quenching. The limits of detection of 1 and 2 for TNP were 0.107 and 0.327 μmol·L^-1, respectively.
- coordination polymers,
- cadmium(Ⅱ),
- topology,
- fluorescence,
- fluorene
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