Work

Slow Magnetic Relaxation in a Dysprosium Metallocene Complex Bearing Equatorial DyIII−P Bonds

Year: 2024

Type: article

Abstract: Single molecule magnets (SMMs) containing dysprosium‐phosphorus bonding are rare due to great challenges in constructing the bonding between hard lanthanide ions and soft phosphorus donors. Here we successfully isolated a novel mononuclear bis‐Cp* dysprosium compound, Cp*2Dy[η‐CH(PPh2)2]⋅C7H8 (1‐Dy), via the salt metathesis reactions of Cp*2Dy(BPh4) and K[(PPh2)2CH] in THF (Cp*=pentamethylcyclopentadienyl). The magnetic investigations indicate its strong SMM behavior evidenced by the open magnetic hysteresis loops below 6 K and the high effective barrier of 300 cm−1. This could be ascribed to weak dative DyIII−P bonds at equatorial sites in such [Cp2DyX]‐type (X=auxiliary donors) complexes.

Source: European Journal of Inorganic Chemistry

DOI: 10.1002/ejic.202400532

Authors: Junting Lv, Xiao‐Lei Li, Quan‐Guo Zhai, Peng Zhang, Jinkui Tang

Institutions: Shaanxi Normal University, Chinese Academy of Sciences, Changchun Institute of Applied Chemistry, State Key Laboratory of Rare Earth Resources Utilization

Language: English

Topic: Magnetism in coordination complexes

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

Funder: National Natural Science Foundation of China

Awards: G4396663730, G8297966677