Kolganov, A. A., Kling, M., Conley, M. P., Pidko, E. A. (2026). Origin of the
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                    P NMR Chemical Shift in Lewis Acid Adducts of Triethylphosphine Oxide. Does the Gutmann–Beckett Method Relate to Lewis Acid Strength?. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.5c17621