ArticleInorganic chemistry2012
Spectroscopic, structural, and theoretical studies of halide complexes with a urea-based tripodal receptor.
Article in Inorganic chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 55 citations in OpenAlex.
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- Synthetic Receptors Induce Anti Angiogenic and Stress Signaling on Human First Trimester Cytotrophoblast Cells.International journal of environmental research and public health · 2017Article
- Solution and structural binding studies of phosphate with thiophene-based azamacrocycles.Inorganic chemistry communications · 2016Article
- Experimental and theoretical studies on halide binding with a p-xylyl-based azamacrocycle.The journal of physical chemistry. A · 2015Article
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- A synthetic thiourea-based tripodal receptor that impairs the function of human first trimester cytotrophoblast cells.International journal of environmental research and public health · 2014Article
- Encapsulation and selectivity of sulfate with a furan-based hexaazamacrocyclic receptor in water.Organic & biomolecular chemistry · 2014Article
- An exclusive fluoride receptor: Fluoride-induced proton transfer to a quinoline-based thiourea.Tetrahedron letters · 2014Article
- A self-assembled fluoride-water cyclic cluster of [F(H2O)]4(4-) in a molecular box.Journal of the American Chemical Society · 2012Article
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
Abstract
A urea-based tripodal receptor L substituted with p-cyanophenyl groups has been studied for halide anions using (1)H NMR spectroscopy, density functional theory (DFT) calculations, and X-ray crystallography. The (1)H NMR titration studies suggest that the receptor forms a 1:1 complex with an anion, showing a binding trend in the order of fluoride > chloride > bromide > iodide. The interaction of a fluoride anion with the receptor was further confirmed by 2D NOESY and (19)F NMR spectroscopy in DMSO-d(6). DFT calculations indicate that the internal halide anion is held by six NH···X interactions with L, showing the highest binding energy for the fluoride complex. Structural characterization of the chloride, bromide, and silicon hexafluoride complexes of [LH(+)] reveals that the anion is externally located via hydrogen bonding interactions. For the bromide or chloride complex, two anions are bridged with two receptors to form a centrosymmetric dimer, while for the silicon hexafluoride complex, the anion is located within a cage formed by six ligands and two water molecules.
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