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 CO2over CH4or N2at ambient temperatures. Moreover, the gadolinium analogue exhibits large magnetocaloric effect at ultralow temperatures.
Original language | English (US) |
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Pages (from-to) | 9375-9379 |
Number of pages | 5 |
Journal | Angewandte Chemie - International Edition |
Volume | 55 |
Issue number | 32 |
DOIs | |
State | Published - Aug 2016 |
Keywords
- cluster complexes
- coordination cages
- gas separation
- magnetic cooling
- rare-earth elements
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)