Differentiating between F and OH Ligands in Homologous Gold(III) Complexes beyond X‐Ray Crystallography

Pérez-Bitrián, Alberto ; Joven-Sancho, Daniel (Universidad de Zaragoza) ; Baya, Miguel (Universidad de Zaragoza) ; Martín, Antonio ; Orduna, Jesús ; Menjón, Babil

Resumen: The homologous fluoride and hydroxide complexes of gold(III) [PPh4][(CF3)3AuX] [X = F (1), OH (2)] have been structurally characterized by single-crystal X-ray diffraction methods. Both of them crystallize in the P21/n space group, yet they are not isomorphous. Despite the intrinsic difficulty to distinguish between F− and OH− by X-ray diffraction, the ability of the OH ligand in complex 2 to establish intramolecular OH…F hydrogen bonding with one of the CF3 groups in cis position enables a clear differentiation from the fluoride complex 1. Given the tendency of late-transition metal fluorides to undergo hydrolysis, much caution should be taken when ascribing the identity of a fluoride ligand by X-ray diffraction methods, especially where unusual geometries are implied.

Idioma: Inglés

DOI: 10.1002/ejic.202500315

Año: 2025

Publicado en: European Journal of Inorganic Chemistry e202500315 (2025), [10 pp.]
ISSN: 1434-1948

Financiación: info:eu-repo/grantAgreement/ES/DGA/E17-23R
Financiación: info:eu-repo/grantAgreement/ES/MICIU/PID2021-122869NB-I00
Financiación: info:eu-repo/grantAgreement/ES/MICIU/PID2024-155563NB-I00

Tipo y forma: Article (Published version)

Área (Departamento): Área Química Inorgánica (Dpto. Química Inorgánica)