A Mixed‐Ligand Approach for a Gigantic and Hollow Heterometallic Cage {Ni64RE96} for Gas Separation and Magnetic Cooling Applications |
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| Authors: | Wei‐Peng Chen Pei‐Qin Liao Youzhu Yu Prof?Dr Zhiping Zheng Prof?Dr Xiao‐Ming Chen Prof?Dr Yan‐Zhen Zheng |
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| Institution: | 1. http://gr.xjtu.edu.cn/web/zheng.yanzhen/home;2. Frontier Institute of Science and Technology (FIST), State Key Laboratory of Mechanical Behavior for Materials, Xi'an Jiaotong University, Xi'an, China;3. MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, China;4. Department of Chemistry, The University of Arizona, Tucson, AZ, USA |
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| Abstract: | Nanosized aggregations of metal ions shielded by organic ligands possessing both exquisite structural aesthetics and intriguing properties are fundamentally interesting. Three isostructural gigantic transition‐metal–rare‐earth heterometallic coordination cages are reported, abbreviated as {Ni64RE96} (RE=Gd, Dy, and Y) and obtained by a mixed‐ligand approach, each possessing a cuboidal framework made of 160 metal ions and a nanosized spherical cavity in the center. Along with the structural novelty, these hollow cages show highly selective adsorptions for CO2 over CH4 or N2 at ambient temperatures. Moreover, the gadolinium analogue exhibits large magnetocaloric effect at ultralow temperatures. |
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| Keywords: | cluster complexes coordination cages gas separation magnetic cooling rare-earth elements |
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