Single-Chain Magnetic Behavior in a Hetero-Tri-Spin Complex Mediated by Supramolecular Interactions with TCNQF•- Radicals.

The self-assembly of organic TCNQF^•- radicals (2- fluoro-7,7,8,8-tetracyano-p-quinodimethane) and the anisotropic [Tb(valpn)Cu]³⁺ dinuclear cations produced a singlechain magnet (SCM) involving stacking interactions of TCNQF^•- radicals (H₂valpn is the Schiff base from the condensation of o-vanillin with 1,3-diaminopropane). Static and dynamic magnetic characterizations reveal that the effective energy barrier for the reversal of the magnetization in this hetero-tri-spin SCM is significantly larger than the barrier of the isolated single-molecule magnet based on the {TbCu} dinuclear core. [ABSTRACT FROM AUTHOR]