Single-molecule magnet behaviour in a Dy(iii) pentagonal bipyramidal complex with a quasi-linear Cl–Dy–Cl sequence

Abstract

We report the synthesis and magnetic investigation of a dysprosium pentagonal bipyramidal complex [Dy(THF)₅Cl₂][BPh₄] (1) exhibiting a linear Cl–Dy–Cl sequence suitable for providing a coordination environment allowing a zero-field slow relaxation of the magnetization. Besides, the complex also shows dual luminescence originating from [BPh₄]⁻ and Dy³⁺.