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- Title
Temperature‐Programmed Separation of Hexane Isomers by a Porous Calcium Chloranilate Metal‐Organic Framework.
- Authors
Lin, Yuhan; Yu, Liang; Ullah, Saif; Li, Xingyu; Wang, Hao; Xia, Qibin; Thonhauser, Timo; Li, Jing
- Abstract
The full separation of alkane isomers as a function of different degrees of branching remains a daunting challenge due to its stringent requirement with respect to pore dimensions of the adsorbents. In this work, we report a novel microporous coordination network built on calcium (II) and chloranilate. The compound has a flexible framework and exhibits temperature‐dependent adsorption behavior toward hexane isomers. At 30 °C, it accommodates substantial amounts of linear and monobranched hexanes but fully excludes their dibranched isomer, and at elevated temperatures such as 150 °C, it acts as a splitter for linear and branched alkanes. Its capability of efficient discrimination of hexane isomers as a function of branching is verified by experimental breakthrough measurements. Ab initio calculations have uncovered the underlying selective size‐exclusion separation mechanism.
- Subjects
METAL-organic frameworks; HEXANE; AB-initio calculations; CALCIUM; HIGH temperatures
- Publication
Angewandte Chemie, 2022, Vol 134, Issue 50, p1
- ISSN
0044-8249
- Publication type
Academic Journal
- DOI
10.1002/ange.202214060