Experimental determination of the magnetic anisotropy in five-coordinated Co(ii) field-induced single molecule magnets.

ABSTRACT: Magnetic anisotropy of the central metal atom is a crucial property of single molecule magnets (SMMs). Small structural changes can alter the magnetic properties, and accurate experimental methods to investigate magnetic anisotropy are therefore critical. Here, we investigate two five-coordinated Co(ii) SMMs, [CoCl₂Cltpy] (1) and [CoBr₂Cltpy] (2) (Cltpy = 4'-chloro-2,2':6',2''-terpyridine), through multiple techniques. Ab initio theoretical calculations performed on the two compounds show that both possess axial magnetic anisotropy with the magnetic easy axis pointing towards one of the terminal halogen atoms. Theoretical calculations on SMMs are typically done on isolated molecular species, and to validate this approximation the magnetic anisotropy was further

SUBMITTER: Slavensky HH 

PROVIDER: S-EPMC12380094 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature