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https://doi.org/10.1039/c8ra05839c
Title: | Anion influences on reactivity and NMR spectroscopic features of NHC precursors | Authors: | Huynh, H.V. Lam, T.T. Luong, H.T.T. |
Issue Date: | 2018 | Publisher: | Royal Society of Chemistry | Citation: | Huynh, H.V., Lam, T.T., Luong, H.T.T. (2018). Anion influences on reactivity and NMR spectroscopic features of NHC precursors. RSC Advances 8 (61) : 34960-34966. ScholarBank@NUS Repository. https://doi.org/10.1039/c8ra05839c | Rights: | Attribution-NonCommercial 4.0 International | Abstract: | A series of 16 benzimidazolium salts of the type iPr2-bimyH+X- with various anions X were synthesized and characterized by various spectroscopic and spectrometric methods. Significant anion and solvent effects on the chemical shifts of the C2-H protons were found, which allows for a ranking of the anions in terms of their hydrogen-bond acceptor properties. Stronger acceptors could increase the acidity of their respective salts leading to a faster H/D exchange. Similar but less pronounced anion influences were detected for the 13CC2 NMR resonances, while 1JC2-H coupling constants appear to be anion and solvent independent. � 2018 The Royal Society of Chemistry. | Source Title: | RSC Advances | URI: | https://scholarbank.nus.edu.sg/handle/10635/214060 | ISSN: | 20462069 | DOI: | 10.1039/c8ra05839c | Rights: | Attribution-NonCommercial 4.0 International |
Appears in Collections: | Staff Publications Elements |
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