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Luminescent detecting of Fe3+ and Cr2O72− ions by three ternary 2D coordination polymers
- Source :
- Polyhedron. 198:115074
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- To investigate the effects of central metal ions on the structures and luminescent sensing properties of ternary luminescent coordination polymers, three new complexes, {[Co(L)(TBTA)(H2O)2]·H2O}n (1), {[Zn(L)(TBTA)]·1.9H2O}n (2) and [Cd(L)(TBTA)]n (3) (L = 1,4-bis(5,6-dimethylbenzimidazol-1-yl)-2-butylene, H2TBTA = tetrabromoterephthalic acid), were synthesized and characterized. 1 and 3 reveal a sql layer, whereas 2 displays a hcb network. Three compounds can be used as probes for the sensitive sensing of Fe3+ and Cr2O72− ions by a luminescence quenching process. The limits of detection (LOD) of 1, 2 and 3 for the detection of Fe3+ ions are 1.61, 1.13 and 0.71 μM, respectively, while the LOD for the sensing of Cr2O72− ions are 1.95, 2.31 and 1.84 μM, separately Possible mechanisms for the luminescence quenching process toward Fe3+ and Cr2O72− ions are presented. The central metal ions of the three ternary CPs play a key role for the effective detection of Fe3+ ions.
- Subjects :
- Detection limit
chemistry.chemical_classification
Quenching (fluorescence)
010405 organic chemistry
Chemistry
Metal ions in aqueous solution
Polymer
010402 general chemistry
01 natural sciences
0104 chemical sciences
Ion
Inorganic Chemistry
Crystallography
Materials Chemistry
Physical and Theoretical Chemistry
Ternary operation
Luminescence
Subjects
Details
- ISSN :
- 02775387
- Volume :
- 198
- Database :
- OpenAIRE
- Journal :
- Polyhedron
- Accession number :
- edsair.doi...........c8c70ea3e4b07d05dfe9c452a93a5d83