A1 Journal article (refereed)
Pyridine Iodine(I) Cations : Kinetic Trapping as a Sulfonate Complexes (2024)

Puttreddy, R., Kumar, P., & Rissanen, K. (2024). Pyridine Iodine(I) Cations : Kinetic Trapping as a Sulfonate Complexes. Chemistry : A European Journal, 30(16), Article e202304178. https://doi.org/10.1002/chem.202304178

JYU authors or editors

Publication details

All authors or editors: Puttreddy, Rakesh; Kumar, Parveen; Rissanen, Kari

Journal or series: Chemistry : A European Journal

ISSN: 0947-6539

eISSN: 1521-3765

Publication year: 2024

Publication date: 09/01/2024

Volume: 30

Issue number: 16

Article number: e202304178

Publisher: Wiley-VCH Verlag

Publication country: Germany

Publication language: English

DOI: https://doi.org/10.1002/chem.202304178

Publication open access: Openly available

Publication channel open access: Partially open access channel

Abstract

Seven pyridine iodine(I) sulfonate complexes were prepared and isolated at low temperatures and characterized by X-ray diffraction analysis. The inherently instable pyridine iodine(I) cations are stabilized by an oxygen of sulfonate anions via the I···O halogen bond. In these complexes, the iodine atom of the pyridine iodine(I) cation acts as an electron acceptor and the sulfonate oxygen as the electron donor. These complexes are stable enough in the crystalline state, yet decompose rapidly under ambient conditions, also being unstable in solution. The (pyridine)N–I bond lengths [2.140(3) - 2.197(2) Å] and the I···O halogen bonds [2.345(6) - 2.227(3) Å] are analogous to (imide)N–I···O–N-pyridine uncharged halogen-bonded complexes formed from N-haloimides and pyridine N-oxides, thus confirming the existence of elusive pyridine iodine(I) cation.

Keywords: cations; iodine

Free keywords: iodine(I); pyridine; cation; sulfonate; x-ray structure

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Related projects

Ministry reporting: Yes

VIRTA submission year: 2024

Preliminary JUFO rating: 2