Asymmetric [N–I–N]+ halonium complexes in solution?
von der Heiden, D., Rissanen, K., & Erdélyi, M. (2020). Asymmetric [N–I–N]+ halonium complexes in solution?. Chemical Communications, 56(92), 14431-14434. https://doi.org/10.1039/D0CC06706G
Published inChemical Communications
© The Royal Society of Chemistry 2020
Assessment of the solution equilibria of [bis(pyridine)iodine(I)]+ complexes by ESI-MS and NMR reveals the preference of iodine(I) to form complexes with a more basic pyridine. Mixtures of symmetric [bis(pyridine)iodine(I)]+ complexes undergo statistical ligand exchange, with a predominant entropic driving force favoring asymmetric systems. The influence of ligand basicity, concentration, temperature, and ligand composition is evaluated. Our findings are expected to facilitate the investigations, and the supramolecular and synthetic applications of halonium ions’ halogen bonds.
PublisherAmerican Chemical Society
Publication in research information system
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Additional information about fundingThis project made use of the NMR Uppsala infrastructure, which is funded by the Department of Chemistry – BMC and the Disciplinary Domain of Medicine and Pharmacy, and was supported by Vinnova [2019-02160], FORMAS [2017-0009] and the Swedish Research Council [2016-03602].
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