期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 32, 页码 9375-9379出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201603907
关键词
cluster complexes; coordination cages; gas separation; magnetic cooling; rare-earth elements
资金
- NSFC [21473129]
- National Young 1000-Plan program
- Wuhan National High Magnetic Field Center [2015KF06]
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 N-2 at ambient temperatures. Moreover, the gadolinium analogue exhibits large magnetocaloric effect at ultralow temperatures.
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