AI Article Synopsis
- The separation of alkane isomers poses challenges due to the specific pore size requirement for adsorbents.
- Researchers developed a new microporous coordination network using calcium (II) and chloranilate that has a flexible structure and exhibits varying adsorption rates for hexane isomers at different temperatures.
- This material can effectively differentiate between linear and branched hexanes at higher temperatures, confirmed through experimental testing and computational analysis.
Article 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.
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| http://dx.doi.org/10.1002/anie.202214060 | DOI Listing |
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