Pyridine Iodine(I) Cations: Kinetic Trapping as a Sulfonate Complexes.
Chemistry
; 30(16): e202304178, 2024 Mar 15.
Article
en En
| MEDLINE
| ID: mdl-38193788
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 Iâ
â
â
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)â
Å] and the Iâ
â
â
O halogen bonds [2.345(6)-2.227(3)â
Å] are analogous to (imide)N-Iâ
â
â
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.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Chemistry
Asunto de la revista:
QUIMICA
Año:
2024
Tipo del documento:
Article
País de afiliación:
Finlandia