Grafting of diazonium salts on oxides surface: formation of aryl-O bonds on iron oxide nanoparticles

Katarzyna Brymora (1) , Jonathan Fouineau (2, 1) , Asma Eddarir (2) , François Chau (2) , Nader Yaacoub (1) , Jean-Marc Greneche (1) , Jean Pinson (2) , Souad Ammar (2) , Florent Calvayrac (1)

1 IMMM - Institut des Molécules et Matériaux du Mans
2 ITODYS (UMR_7086) - Interfaces, Traitements, Organisation et Dynamique des Systèmes

Combining ab initio modeling and 57 Fe Mössbauer spectrometry, we characterized the nature of the chemical linkage of aminoalkyl arenediazonium salt on the surface of iron oxide nanoparticles. We established that it is built through a metal-oxygen-carbon bonding and not a metal-carbon one, as usually suggested and commonly observed in previously studied metal-or carbon-based surfaces.

Mots clés: Nanohybrids; Iron oxide nanoparticles; Ab initio modeling; Diazonium salt chemistry; 57 Fe Mössbauer spectrometry

Domaines: Physique Numérique [physics.comp-ph]

Katarzyna Brymora, Jonathan Fouineau, Asma Eddarir, François Chau, Nader Yaacoub, et al.. Grafting of diazonium salts on oxides surface: formation of aryl-O bonds on iron oxide nanoparticles. Journal of Nanoparticle Research, 2015, 17, pp.438. ⟨10.1007/s11051-015-3232-x⟩. ⟨hal-01906085⟩