A Mixed-Ligand Approach for a Gigantic and Hollow Heterometallic Cage {Ni64RE96} for Gas Separation and Magnetic Cooling Applications

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}...

Full description

Saved in:
Bibliographic Details
Published in:Angewandte Chemie International Edition 2016-08, Vol.55 (32), p.9375-9379
Main Authors: Chen, Wei-Peng, Liao, Pei-Qin, Yu, Youzhu, Zheng, Zhiping, Chen, Xiao-Ming, Zheng, Yan-Zhen
Format: Article
Language:English
Subjects:
Ambient temperature
Cages
Carbon dioxide
cluster complexes
Cooling
coordination cages
Gadolinium
Gas separation
Holes
Ions
Ligands
Magnetic cooling
Metal ions
Metals
Methane
Nanostructure
Rare earth elements
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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. The highest‐nuclearity transition‐metal–rare‐earth heterometallic coordination cages {Ni64RE96} (RE=Gd, Dy, and Y) with a cuboidal porous structure have been synthesized by using a mixed‐ligand approach to control the hydrolysis of the metal ions. These giant cluster complexes exhibit high selectivity for CO2 over CH4 or N2 at ambient temperature and a large magnetocaloric effect at ultralow temperatures.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201603907