Correlation between surface chemistry and magnetism in iron nanoparticles.

ABSTRACT: To shed light on the factors governing the stability and surface properties of iron nanoparticles, a series of iron nanoparticles has been produced by hydrogenation of two different iron amido complexes: the bis[bis(trimethylsilyl)amido] Fe(ii), [Fe(N(SiMe₃)₂)₂]₂, and the bis(diphenylamido) Fe(ii), [Fe(NPh₂)₂]. Nanostructured materials of bcc structure, or nanoparticles displaying average sizes below 3 nm and a polytetrahedral structure, have been obtained. Depending on the synthesis conditions, the magnetization of the nanoparticles was either significantly lower than that of bulk iron, or much higher as for clusters elaborated under high vacuum conditions. Unexpectedly, hydrogenation of aromatic groups of the ligands of th

SUBMITTER: Haim L 

PROVIDER: S-EPMC9419664 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature