Carbene Addition and Its Remote Influence on Dy···Dy Coupling, Relaxation of Magnetization, and Magnetic Frustration in Fullerene Single-Molecule Magnets.

ABSTRACT: Magnetic properties of lanthanide endohedral metallofullerenes are strongly modulated by intramolecular metal-metal interactions, which suppress the quantum tunneling of magnetization (QTM) in Dy₂ScN@C₈₀, but lead to magnetic frustration with pronounced QTM in Dy₃N@C₈₀. In this work, we explore how exohedral chemical modification of Dy₂ScN@C₈₀ and Dy₃N@C₈₀ by photochemical addition of adamantylidene (Ad) affects Dy···Dy interactions and influences their single-molecule magnetism. For each fullerene, the photochemical reaction with adamantane aziridine produced two isomers of Ad monoadduct, minor [5,6]-open and major [6,6]-open. By virtue of the high sensitivity of the ¹H nuclear spin probe in

SUBMITTER: Barbosa MFS 

PROVIDER: S-EPMC12728640 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature