Magneto-structural correlations in arsenic- and selenium-ligated dysprosium single-molecule magnets.

ABSTRACT: The structures and magnetic properties of the arsenic- and selenium-ligated dysprosium single-molecule magnets (SMMs) [Cp'₃Dy(AsH₂Mes)] (3-Dy), [(η⁵-Cp'₂Dy){μ-As(H)Mes}]₃ (4-Dy), [Li(thf)₄]₂[(η⁵-Cp'₂Dy)₃(μ₃-AsMes)₃Li] ([Li(thf)₄]₂[5-Dy]), and [(η⁵-Cp'₂Dy){μ-SeMes}]₃ (6-Dy) are described. The arsenic-ligated complexes 4-Dy and 5-Dy are the first SMMs to feature ligands with metalloid elements as the donor atoms. The arsenide-ligated complex 4-Dy and the selenolate-ligated complex 6-Dy show large anisotropy barriers in the region of 250 cm^-1

SUBMITTER: Pugh T 

PROVIDER: S-EPMC5968533 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature