Cyclooctatetraenide-based single-ion magnets featuring bulky cyclopentadienyl ligand.

ABSTRACT: We report a family of organometallic rare-earth complexes with the general formula (COT)M(Cp^ttt) (where (COT)^2- = cyclooctatetraenide, (Cp^ttt)^- = 1,2,4-tri(tert-butyl)cyclopentadienide, M = Y(iii), Nd(iii), Dy(iii) and Er(iii)). Similarly to the prototypical Er(iii) analog featuring pentamethylcyclopentadienyl ligand (Cp*)^-, (COT)Er(Cp^ttt) behaves as a single-ion magnet. However, the introduction of the sterically demanding (Cp^ttt)^- imposes geometric constraints that lead to a simplified magnetic relaxation behavior compared to the (Cp*)^- containing complexes. Consequently, (COT)Er(Cp^ttt) can be viewed as a model representative of this organometallic single-ion magnet archit

SUBMITTER: Korzynski MD 

PROVIDER: S-EPMC9473503 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature