Abstract
Hg(II) halide complexes [HgCl2] 2L1 [L1 = N,N’-bis(3-pyridyl)bicyclo(2,2,2,)oct-7-ene-2,3,5,6-tetracarboxylic diamide), 1, [HgBr2(L1)]n, 2, [HgI2(L1)], 3, [Hg2X4(L2)2] [X = Cl, 4, Br, 5, and I, 6; L2 = N,N’-bis(4-pyridylmethyl)bicyclo(2,2,2,)oct-7-ene-2,3,5,6-tetracarboxylic diamide] and {[HgX2(L3)]⋅H2O}n [X = Cl, 7, Br, 8 and I, 9; L3 = 4,4′-oxybis(N-(pyridine-3-yl)benzamide)] are reported and structurally characterized using single-crystal X-ray diffraction analyses. The linear HgCl2 units of complex 1 are interlinked by the L1 ligands through Hg---N and Hg---O interactions, resulting in 1D supramolecular chains. Complex 2 shows 1D zigzag chains interlinked through the Br---Br interactions to form 1D looped supramolecular chains, while the mononuclear [HgI2L2] molecules of 3 are interlinked through Hg---O and I---I interactions, forming 2D supramolecular layers. Complexes 4–6 are isomorphous dinuclear metallocycles, and 7–9 form isomorphous 1D zigzag chains. The roles of the ligand type and the halide anion in determining the structural diversity of 1–9 is discussed and the luminescent properties of 7–9 evaluated. Complexes 7–9 manifest stability in aqueous environments. Moreover, complexes 7 and 8 show good sensing towards Fe3+ ions with low detection limits and good reusability up to five cycles, revealing that the Hg-X---Fe3+ (X = Cl and Br) interaction may have an important role in determining the quenching effect of 7 and 8.
Original language | English |
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Article number | 7861 |
Journal | International journal of molecular sciences |
Volume | 23 |
Issue number | 14 |
DOIs | |
Publication status | Published - 2022 Jul |
Keywords
- Hg(II) complex
- Hg(II) coordination polymer
- crystal structure analysis
- halide anion effect
ASJC Scopus subject areas
- Catalysis
- Molecular Biology
- Spectroscopy
- Computer Science Applications
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry
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CCDC 2180163: Experimental Crystal Structure Determination
Govindaraj, M. (Contributor), Huang, W. (Contributor), Lee, C. (Contributor), Lakshmanan, V. (Contributor), Liu, Y. (Contributor), So, P. B. (Contributor), Lin, C. H. (Contributor) & Chen, J. (Contributor), Cambridge Crystallographic Data Centre, 2023
DOI: 10.5517/ccdc.csd.cc2c5mv1, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc2c5mv1&sid=DataCite
Dataset
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CCDC 2180164: Experimental Crystal Structure Determination
Govindaraj, M. (Contributor), Huang, W. (Contributor), Lee, C. (Contributor), Lakshmanan, V. (Contributor), Liu, Y. (Contributor), So, P. B. (Contributor), Lin, C. H. (Contributor) & Chen, J. (Contributor), Cambridge Crystallographic Data Centre, 2023
DOI: 10.5517/ccdc.csd.cc2c5mw2, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc2c5mw2&sid=DataCite
Dataset
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CCDC 2180159: Experimental Crystal Structure Determination
Govindaraj, M. (Contributor), Huang, W. (Contributor), Lee, C. (Contributor), Lakshmanan, V. (Contributor), Liu, Y. (Contributor), So, P. B. (Contributor), Lin, C. H. (Contributor) & Chen, J. (Contributor), Cambridge Crystallographic Data Centre, 2023
DOI: 10.5517/ccdc.csd.cc2c5mqx, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc2c5mqx&sid=DataCite
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