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Tunable photoluminescence in flexible carboxylate ligand-based coordination polymers with interesting topologies and Fe3+ sensitivity
Five new zinc coordination polymers based on flexible carboxylate ligands, namely, [Zn2(chtc)(H2O)]·3H2O (1), [Zn2(chtc)(4,4′-bpy)0.5] (2), [Zn(H2chtc)(bpe)] (3), [Zn(cis-chdc)(bpe)]·3H2O (4), and [Zn(trans-chdc)(bpe)(NO3)(H2O)]·H2O (5) (chtc/H2chtc = deprotonated/half-protonated cyclohexane-1e,2a,4...
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Published in: | CrystEngComm 2020-01, Vol.22 (40), p.6713-6719 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | Five new zinc coordination polymers based on flexible carboxylate ligands, namely, [Zn2(chtc)(H2O)]·3H2O (1), [Zn2(chtc)(4,4′-bpy)0.5] (2), [Zn(H2chtc)(bpe)] (3), [Zn(cis-chdc)(bpe)]·3H2O (4), and [Zn(trans-chdc)(bpe)(NO3)(H2O)]·H2O (5) (chtc/H2chtc = deprotonated/half-protonated cyclohexane-1e,2a,4a,5e-tetracarboxylic acid, cis/trans-chdc = cyclohexane-1e,2a/1e,2e-dicarboxylic acid, 4,4′-bpy = 4,4′-bipyridine, bpe = trans-1,2-(bis(4-pyridyl)ethene)) have been constructed and characterized. Owing to the tunability of linking ligands, these complexes show different interesting topological networks, namely uninodal umc three-dimensional network for 1, mtc three-dimensional non-manifold topology for 2, (4,4) net for the two-dimensional structure of 3, dmp-c interpenetrated network for 4, and one-dimensional ladder chain for 5. Notably, all complexes exhibit selectivity and sensitivity for Fe3+ ions with detection limit of less than 3.5 μM, which was correlated to the dimensionalities of the structures, implying their potential application in sewage detection. |
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ISSN: | 1466-8033 |
DOI: | 10.1039/d0ce01043j |