A1 Journal article (refereed)
Carbonyl Hypoiodites as Extremely Strong Halogen Bond Donors (2021)


Yu, Shilin, Ward, Jas S., Truong, Khai-Nghi, Rissanen, Kari, . (2021). Carbonyl Hypoiodites as Extremely Strong Halogen Bond Donors. Angewandte Chemie, Early online. https://doi.org/10.1002/anie.202108126


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Publication details

All authors or editors: Yu, Shilin; Ward, Jas S.; Truong, Khai-Nghi; Rissanen, Kari;

Journal or series: Angewandte Chemie

ISSN: 1433-7851

eISSN: 1521-3773

Publication year: 2021

Volume: Early online

Publisher: Wiley

Publication country: Germany

Publication language: English

DOI: https://doi.org/10.1002/anie.202108126

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/77193


Abstract

Neutral halogen-bonded O−I−N complexes were prepared from in situ formed carbonyl hypoiodites and aromatic organic bases. The carbonyl hypoiodites have a strongly polarized iodine atom with larger σ-holes than any known uncharged halogen bond donor. Modulating the Lewis basicity of the selected pyridine derivatives and carboxylates leads to halogen-bonded complexes where the classical O−I⋅⋅⋅N halogen bond transforms more into a halogen-bonded COO−⋅⋅⋅I−N+ ion-pair (salt) with an asymmetric O−I−N moiety. X-ray analyses, NMR studies, and calculations reveal the halogen bonding geometries of the carbonyl hypoiodite-based O−I−N complexes, confirming that in the solid-state the iodine atom is much closer to the N-atom of the pyridine derivatives than its original position at the carboxylate O-atom.


Keywords: halogens; chemical bonds; supramolecular chemistry


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Preliminary JUFO rating: 3


Last updated on 2021-17-09 at 16:01