Ferromagnetic Exchange and Slow Magnetic Relaxation in Cobalt Bis(1,2-dithiolene)-Bridged Dilanthanide Complexes.

ABSTRACT: The construction of multinuclear lanthanide-based molecules with significant magnetic exchange interactions represents a key challenge in the realization of single-molecule magnets with high operating temperatures. Here, we report the synthesis and magnetic characterization of two series of heterobimetallic compounds, (Cp*₂Ln)₂(μ-Co(pdt)₂) (Ln = Y³⁺, Gd³⁺, Dy³⁺; pdt^2- = 1,2-diphenylethylenedithiolate) and [K(18-crown-6)][(Cp*₂Ln)₂(μ-Co(pdt)₂)] (Ln = Y³⁺, Gd³⁺), featuring two lanthanide centers bridged by a cobalt bis(1,2-dithiolene) complex. Dc magnetic susceptibility data collected for the Gd congeners indicate significant Gd-Co ferromagnetic exchange

SUBMITTER: Vincent AH 

PROVIDER: S-EPMC11684014 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature