Saddle-Shaped Heterometallic 3d–4f Cluster: Structure and Magnetocaloric Effect
Heterometallic 3d-4f cluster complexes have enjoyed much recent interest because of their structural esthetics, unique properties, and useful applications. A cluster of the formula [Gd<sub>68</sub>Co<sub>60</sub>(OH)<sub>116</sub>(CH<sub>3</sub>COO)<sub>8</sub>(IDA)<sub>56</sub>(CO<sub>3</sub>)<sub>4</sub>(C<sub>2</sub>O<sub>4</sub>)<sub>8</sub>(H<sub>2</sub>O)<sub>92</sub>Cl<sub>16</sub>]Cl<sub>48</sub>·10H<sub>2</sub>O·60CH<sub>3</sub>OH (<b>Gd</b><sub><b>68</b></sub><b>Co</b><sub><b>60</b></sub>, IDA: iminodiacetate), obtained by the cohydrolysis of Gd<sup>3+</sup> and Co<sup>2+</sup> in the presence of IDA, is herein reported. Crystallographic studies revealed its saddle-shaped cyclic structure featuring a nanometer-sized central cavity. A maximum magnetic entropy change of 38.58 J·K<sup>-1</sup>·kg<sup>-1</sup> was achieved at 3.0 K and 7.0 T, placing <b>Gd</b><sub><b>68</b></sub><b>Co</b><sub><b>60</b></sub> favorably alongside the better-performing clusters for magnetic cooling applications.
Authors
- Zhiping Zheng (ORCID: https://orcid.org/0000-0002-5834-6763)
- Wanmin Chen (ORCID: https://orcid.org/0000-0003-0431-3701)
- Min Feng (ORCID: https://orcid.org/0000-0001-9184-7482)
- Qingxin Liu (ORCID: https://orcid.org/0000-0002-8444-2206)
Institutions
- Southern University of Science and Technology (CN)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2025-03-07
- DOI
- https://doi.org/10.1021/acs.inorgchem.4c04910
- Citations
- 4
- Primary Topic
- Inorganic Chemistry and Materials
- Type
- article
- Field-Weighted Citation Impact
- 2.15
Funders
- Natural Science Foundation of Shenzhen City
- National Natural Science Foundation of China
- Shenzhen Fundamental Research Program