Publication: A new halogen bonding 1,2-iodo-triazolium-triazole benzene motif for anion recognition
2
Issued Date
2021-11-15
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ISSN
02775387
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2-s2.0-85115382272
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Mahidol University
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SCOPUS
Bibliographic Citation
Polyhedron. Vol.209, (2021)
Suggested Citation
Thanthapatra Bunchuay, Andrew Docker, Nicholas G. White, Paul D. Beer A new halogen bonding 1,2-iodo-triazolium-triazole benzene motif for anion recognition. Polyhedron. Vol.209, (2021). doi:10.1016/j.poly.2021.115482 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/76576
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Title
A new halogen bonding 1,2-iodo-triazolium-triazole benzene motif for anion recognition
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Abstract
The synthesis of a series of halogen bonding (XB) acyclic anion receptors based on a novel 1,2-iodo-triazolium-triazole benzene motif is reported. A combination of one- and two-dimensional 1H and 19F NMR spectroscopic techniques elucidate key conformational effects associated with the incorporation of ortho-substituted iodo-triazole based XB donors. 1H NMR anion titration experiments highlight the anion recognition potency of a mono-cationic XB iodo-triazolium-triazole benzene receptor, remarkably forming stronger halide complexes in comparison to a dicationic hydrogen bonding (HB) bis-proto-triazolium receptor analogue. X-ray crystal structure analysis provide insights into halide binding induced conformational changes and coordination modes, revealing the unique electronic and steric consequences associated with multidentate XB donor arrays.