Volume 133, Issue 36 pp. 20074-20080
Forschungsartikel

A Dynamic Chemical Clip in Supramolecular Framework for Sorting Alkylaromatic Isomers using Thermodynamic and Kinetic Preferences

Subhajit Laha

Subhajit Laha

Chemistry and Physics of Materials Unit (CPMU), School of Adv. Mat. (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, 560064 India

These authors contributed equally to this work.

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Dr. Ritesh Haldar

Dr. Ritesh Haldar

New Chemistry Unit (NCU), School of Adv. Mat. (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, 560064 India

Present address: Tata Institute of Fundamental Research Hyderabad, Gopanpally, 500046 Telangana, India

These authors contributed equally to this work.

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Nimish Dwarkanath

Nimish Dwarkanath

Chemistry and Physics of Materials Unit (CPMU), School of Adv. Mat. (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, 560064 India

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Dr. Satyanarayana Bonakala

Dr. Satyanarayana Bonakala

Chemistry and Physics of Materials Unit (CPMU), School of Adv. Mat. (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, 560064 India

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Dr. Abhishek Sharma

Dr. Abhishek Sharma

Chemistry and Physics of Materials Unit (CPMU), School of Adv. Mat. (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, 560064 India

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Dr. Arpan Hazra

Dr. Arpan Hazra

Chemistry and Physics of Materials Unit (CPMU), School of Adv. Mat. (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, 560064 India

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Prof. Sundaram Balasubramanian

Prof. Sundaram Balasubramanian

Chemistry and Physics of Materials Unit (CPMU), School of Adv. Mat. (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, 560064 India

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Prof. Tapas Kumar Maji

Corresponding Author

Prof. Tapas Kumar Maji

Chemistry and Physics of Materials Unit (CPMU), School of Adv. Mat. (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, 560064 India

New Chemistry Unit (NCU), School of Adv. Mat. (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, 560064 India

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First published: 10 June 2021

Abstract

Adsorptive chemical separation is at the forefront of future technologies, for use in chemical and petrochemical industries. In this process, a porous adsorbent selectively allows a single component from a mixture of three or more chemical components to be adsorbed or permeate. To separate the unsorted chemicals, a different adsorbent is needed. A unique adsorbent which can recognize and separate each of the chemicals from a mixture of three or more components is the necessity for the next generation porous materials. In this regard, we demonstrate a “dynamic chemical clip” in a supramolecular framework capable of thermodynamic and kinetics-based chemical separation. The dynamic space, featuring a strong preference for aromatic guests through π-π and C-H⋅⋅⋅π interactions and adaptability, can recognize the individual chemical isomers from mixtures and separate those based on thermodynamic and kinetic factors. The liquid-phase selectivity and separation of the aromatic isomers are possible by the adaptability of the “chemical clip” and here we elucidate the prime factors in a combinatorial approach involving crystallographic evidence and detailed computational studies.

Conflict of interest

The authors declare no conflict of interest.

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