Spin-Crossover and Slow Magnetic Relaxation Behavior in Hexachlororhenate(IV) Salts of Mn(III) Complexes [Mn(5-Hal-sal₂323)]₂[ReCl₆] (Hal = Cl, Br).

ABSTRACT: The cationic complexes of Mn(III) with the 5-Hal-sal₂323 (Hal = Cl, Br) ligands and a paramagnetic doubly charged counterion [ReCl₆]^2- have been synthesized: [Mn(5-Cl-sal₂323)]₂[ReCl₆] (1) and [Mn(5-Br-sal₂323)]₂[ReCl₆] (2). Their crystal structures and magnetic properties have been studied. These isostructural two-component ionic compounds show a thermally induced spin transition at high temperature associated with the cationic subsystem and a field-induced slow magnetic relaxation of magnetization at cryogenic temperature, associated with the anionic subsystem. The compounds are the first examples of the coexistence of spin crossover and field-induced slow magnetic relaxation

SUBMITTER: Tiunova AV 

PROVIDER: S-EPMC9570138 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature