Tripodal halogen bonding iodo-azolium receptors for anion recognition
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Other documents of the author: Ruiz-Botella, Sheila; Vidossich, Pietro; Ujaque, Gregori; Peris, Eduardo; Beer, Paul D.
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comunitat-uji-handle2:10234/7053
comunitat-uji-handle3:10234/8639
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Title
Tripodal halogen bonding iodo-azolium receptors for anion recognitionDate
2017Publisher
Royal Society of ChemistryISSN
2046-2069Bibliographic citation
RUIZ-BOTELLA, Sheila, et al. Tripodal halogen bonding iodo-azolium receptors for anion recognition. RSC Advances, 2017, vol. 7, no 19, p. 11253-11258Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
The synthesis, characterization and anion binding properties of 1,3,5-tri-substituted benzene platform-based tripodal receptors containing halogen bonding (XB) iodo-imidazolium and iodo-triazolium motifs, and hydrogen ... [+]
The synthesis, characterization and anion binding properties of 1,3,5-tri-substituted benzene platform-based tripodal receptors containing halogen bonding (XB) iodo-imidazolium and iodo-triazolium motifs, and hydrogen bonding (HB) analogues are described. Proton NMR anion binding investigations reveal the XB receptors are superior halide complexants compared to hydrogen bonding (HB) receptor analogues, with the iodo-imidazolium tripodal receptor exhibiting notably higher association constant values in comparison to the iodo-triazolium host system. In contrast, the HB tripod receptors, display higher affinities for dihydrogen phosphate than the XB receptors. Computational DFT and molecular dynamics were used to corroborate the experimental observations, and to give a clearer insight into the intimate nature of halide binding. The studies reveal a fundamental different binding behavior for the imidazolium-based and the iodo-imidazolium-based receptors. [-]
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RSC Advances, 2017, vol. 7, núm.19Rights
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