The first asymmetric halogen-bonded iodonium complexes [I(py)(4-DMAP)]PF6 (2c) and [I(py)(4-Etpy)]PF6 (2e) were prepared via [N–Ag–N]+ → [N–I–N]+ cation exchange of their analogous 2-coordinate silver complexes. The complexes were characterised by 1H and 1H–15N HMBC NMR spectroscopy, and single crystal X-ray crystallography.
![Graphical abstract: Asymmetric [N–I–N]+ halonium complexes](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=D0CC02758H&imageInfo.ImageIdentifier.Year=2020)
J. S. Ward, G. Fiorini, A. Frontera and K. Rissanen, Chem. Commun., 2020, 56, 8428 DOI: 10.1039/D0CC02758H
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