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Styrene Purification by Guest-Induced Restructuring of Pillar[6]arene
[Image: see text] The separation of styrene (St) and ethylbenzene (EB) mixtures is important in the chemical industry. Here, we explore the St and EB adsorption selectivity of two pillar-shaped macrocyclic pillar[n]arenes (EtP5 and EtP6; n = 5 and 6). Both crystalline and amorphous EtP6 can capture...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical
Society
2017
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5360353/ https://www.ncbi.nlm.nih.gov/pubmed/28182420 http://dx.doi.org/10.1021/jacs.6b13300 |
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author | Jie, Kecheng Liu, Ming Zhou, Yujuan Little, Marc A. Bonakala, Satyanarayana Chong, Samantha Y. Stephenson, Andrew Chen, Linjiang Huang, Feihe Cooper, Andrew I. |
author_facet | Jie, Kecheng Liu, Ming Zhou, Yujuan Little, Marc A. Bonakala, Satyanarayana Chong, Samantha Y. Stephenson, Andrew Chen, Linjiang Huang, Feihe Cooper, Andrew I. |
author_sort | Jie, Kecheng |
collection | PubMed |
description | [Image: see text] The separation of styrene (St) and ethylbenzene (EB) mixtures is important in the chemical industry. Here, we explore the St and EB adsorption selectivity of two pillar-shaped macrocyclic pillar[n]arenes (EtP5 and EtP6; n = 5 and 6). Both crystalline and amorphous EtP6 can capture St from a St-EB mixture with remarkably high selectivity. We show that EtP6 can be used to separate St from a 50:50 v/v St:EB mixture, yielding in a single adsorption cycle St with a purity of >99%. Single-crystal structures, powder X-ray diffraction patterns, and molecular simulations all suggest that this selectivity is due to a guest-induced structural change in EtP6 rather than a simple cavity/pore size effect. This restructuring means that the material “self-heals” upon each recrystallization, and St separation can be carried out over multiple cycles with no loss of performance. |
format | Online Article Text |
id | pubmed-5360353 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | American Chemical
Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-53603532017-03-22 Styrene Purification by Guest-Induced Restructuring of Pillar[6]arene Jie, Kecheng Liu, Ming Zhou, Yujuan Little, Marc A. Bonakala, Satyanarayana Chong, Samantha Y. Stephenson, Andrew Chen, Linjiang Huang, Feihe Cooper, Andrew I. J Am Chem Soc [Image: see text] The separation of styrene (St) and ethylbenzene (EB) mixtures is important in the chemical industry. Here, we explore the St and EB adsorption selectivity of two pillar-shaped macrocyclic pillar[n]arenes (EtP5 and EtP6; n = 5 and 6). Both crystalline and amorphous EtP6 can capture St from a St-EB mixture with remarkably high selectivity. We show that EtP6 can be used to separate St from a 50:50 v/v St:EB mixture, yielding in a single adsorption cycle St with a purity of >99%. Single-crystal structures, powder X-ray diffraction patterns, and molecular simulations all suggest that this selectivity is due to a guest-induced structural change in EtP6 rather than a simple cavity/pore size effect. This restructuring means that the material “self-heals” upon each recrystallization, and St separation can be carried out over multiple cycles with no loss of performance. American Chemical Society 2017-02-09 2017-03-01 /pmc/articles/PMC5360353/ /pubmed/28182420 http://dx.doi.org/10.1021/jacs.6b13300 Text en Copyright © 2017 American Chemical Society This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
spellingShingle | Jie, Kecheng Liu, Ming Zhou, Yujuan Little, Marc A. Bonakala, Satyanarayana Chong, Samantha Y. Stephenson, Andrew Chen, Linjiang Huang, Feihe Cooper, Andrew I. Styrene Purification by Guest-Induced Restructuring of Pillar[6]arene |
title | Styrene
Purification by Guest-Induced Restructuring
of Pillar[6]arene |
title_full | Styrene
Purification by Guest-Induced Restructuring
of Pillar[6]arene |
title_fullStr | Styrene
Purification by Guest-Induced Restructuring
of Pillar[6]arene |
title_full_unstemmed | Styrene
Purification by Guest-Induced Restructuring
of Pillar[6]arene |
title_short | Styrene
Purification by Guest-Induced Restructuring
of Pillar[6]arene |
title_sort | styrene
purification by guest-induced restructuring
of pillar[6]arene |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5360353/ https://www.ncbi.nlm.nih.gov/pubmed/28182420 http://dx.doi.org/10.1021/jacs.6b13300 |
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