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A 3D Heterometallic Coordination Polymer Constructed by Trimeric {NiDy2} Single-Molecule Magnet Units
Shaowei Zhang1,2, Han Li1, Eryue Duan1
1Department of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), Nankai University , Tianjin 300071, P. R. China.
Inorganic Chemistry
|January 12, 2016
Summary
A novel 3D Ni-Dy coordination polymer exhibits single-molecule magnet behavior, utilizing a pre-formed SMM cluster as a building block. This material demonstrates thermal stability up to 310 °C.
Area of Science:
- Inorganic Chemistry
- Materials Science
- Magnetochemistry
Background:
- Coordination polymers (CPs) offer tunable structures and properties.
- Heterometallic CPs incorporating lanthanides and transition metals are of interest for magnetic applications.
- Single-molecule magnets (SMMs) are crucial for advanced magnetic storage and quantum computing.
Purpose of the Study:
- To synthesize and characterize a novel 3D Ni-Dy heterometallic coordination polymer (HCP).
- To investigate the magnetic properties, specifically SMM behavior, of the synthesized HCP.
- To explore the potential of using SMM clusters as building blocks for complex structures.
Main Methods:
- Solvothermal synthesis using DyCl3·6H2O, Ni(NO3)2·6H2O, and H4abtc ligands.
- Structural characterization using X-ray diffraction (XRD) and thermogravimetric analysis (TGA).
- Magnetic property measurements, including alternating-current (AC) magnetic susceptibility.
Main Results:
- A 3D Ni-Dy HCP, {[NH2(CH3)2]2[NiDy2(HCOO)2(abtc)2]}n (1), was successfully synthesized.
- Compound 1 exhibits frequency-dependent out-of-phase AC magnetic signals, indicating SMM behavior.
- The material shows energy barriers of 40 and 42 K and is thermally stable up to 310 °C.
Conclusions:
- The study presents the first 3D Ni-Ln HCP built from an SMM cluster.
- The synthesized coordination polymer demonstrates promising single-molecule magnet properties.
- The findings open avenues for designing advanced magnetic materials using pre-assembled magnetic clusters.
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