A1 Journal article (refereed)
Ligand exchange among iodine(I) complexes (2022)

Yu, S., & Ward, J. S. (2022). Ligand exchange among iodine(I) complexes. Dalton Transactions, 51(12), 4668-4674. https://doi.org/10.1039/D1DT04309A

JYU authors or editors

Publication details

All authors or editors: Yu, Shilin; Ward, Jas S.

Journal or series: Dalton Transactions

ISSN: 1477-9226

eISSN: 1477-9234

Publication year: 2022

Publication date: 17/02/2022

Volume: 51

Issue number: 12

Pages range: 4668-4674

Publisher: Royal Society of Chemistry (RSC)

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1039/D1DT04309A

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/80506


A detailed investigation of ligand exchange between iodine(I) ions in [N⋯I⋯N]+ halogen-bonded complexes is presented. Ligand exchange reactions were conducted to successfully confirm whether iodine(I) complex formation, via the classical [N⋯Ag⋯N]+ to [N⋯I⋯N]+ cation exchange reaction from their analogous Ag+ complexes, could be determined solely by using 1H NMR spectroscopy. In instances where the formation of the iodine(I) complex was unclear or in low yield by the traditional cation exchange reaction, a ligand exchange reaction was used to form the desired iodine(I) complexes in a quantitative manner. Mixing two homoleptic [N⋯I⋯N]+ iodine(I) complexes in 1 : 1 ratio was found to undergo a statistical ligand exchange, with 1H NMR studies showing that the preferred formation of the relative heteroleptic [N1⋯I⋯N2]+ complexes increases with greater differences in the Lewis basicities of two XB acceptors of the complexes involved.

Keywords: coordination complexes; halogens; iodine; ligands; chemical bonds

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2022

Preliminary JUFO rating: 1

Last updated on 2022-20-09 at 13:11