Adsorptive Molecular Sieving of Styrene over Ethylbenzene by Trianglimine Crystals

Avishek Dey; Santanu Chand; Bholanath Maity; Prashant Bhatt; Munmun Ghosh; Luigi Cavallo; Mohamed Eddaoudi; Niveen M. Khashab

doi:10.1021/jacs.0c13019

Adsorptive Molecular Sieving of Styrene over Ethylbenzene by Trianglimine Crystals

Avishek Dey, Santanu Chand, Bholanath Maity, Prashant Bhatt, Munmun Ghosh, Luigi Cavallo, Mohamed Eddaoudi, Niveen M. Khashab

Research output: Contribution to journal › Article › peer-review

59 Scopus citations

Abstract

The separation of styrene (ST) and ethylbenzene (EB) mixtures is of great importance in the petrochemical and plastics industries. Current technology employs multiple cycles of energy-intensive distillation due to the very close boiling points of ST and EB. Here, we show that the molecular sieving properties of easily scalable and stable trianglimine crystals offer ultrahigh selectivity (99%) for styrene separation. The unique molecular sieving properties of trianglimine crystals are corroborated by DFT calculations, suggesting that the incorporation of the nonplanar EB requires a significant deformation of the macrocyclic cavity whereas the planar ST can be easily accommodated in the cavity.

Original language	English (US)
Journal	Journal of the American Chemical Society
DOIs	https://doi.org/10.1021/jacs.0c13019
State	Published - Mar 10 2021

ASJC Scopus subject areas

Biochemistry
Colloid and Surface Chemistry
General Chemistry
Catalysis

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10.1021/jacs.0c13019

https://repository.kaust.edu.sa/bitstream/10754/668382/1/jacs.0c13019.pdf

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title = "Adsorptive Molecular Sieving of Styrene over Ethylbenzene by Trianglimine Crystals",

abstract = "The separation of styrene (ST) and ethylbenzene (EB) mixtures is of great importance in the petrochemical and plastics industries. Current technology employs multiple cycles of energy-intensive distillation due to the very close boiling points of ST and EB. Here, we show that the molecular sieving properties of easily scalable and stable trianglimine crystals offer ultrahigh selectivity (99%) for styrene separation. The unique molecular sieving properties of trianglimine crystals are corroborated by DFT calculations, suggesting that the incorporation of the nonplanar EB requires a significant deformation of the macrocyclic cavity whereas the planar ST can be easily accommodated in the cavity.",

author = "Avishek Dey and Santanu Chand and Bholanath Maity and Prashant Bhatt and Munmun Ghosh and Luigi Cavallo and Mohamed Eddaoudi and Khashab, {Niveen M.}",

note = "KAUST Repository Item: Exported on 2021-03-31 Acknowledged KAUST grant number(s): CRG4 Acknowledgements: This work was supported by the Office of Sponsored Research (CRG4) at King Abdullah University of Science and Technology (KAUST), Saudi Arabia.",

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language = "English (US)",

journal = "Journal of the American Chemical Society",

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T1 - Adsorptive Molecular Sieving of Styrene over Ethylbenzene by Trianglimine Crystals

AU - Dey, Avishek

AU - Chand, Santanu

AU - Maity, Bholanath

AU - Bhatt, Prashant

AU - Ghosh, Munmun

AU - Cavallo, Luigi

AU - Eddaoudi, Mohamed

AU - Khashab, Niveen M.

N1 - KAUST Repository Item: Exported on 2021-03-31 Acknowledged KAUST grant number(s): CRG4 Acknowledgements: This work was supported by the Office of Sponsored Research (CRG4) at King Abdullah University of Science and Technology (KAUST), Saudi Arabia.

PY - 2021/3/10

Y1 - 2021/3/10

N2 - The separation of styrene (ST) and ethylbenzene (EB) mixtures is of great importance in the petrochemical and plastics industries. Current technology employs multiple cycles of energy-intensive distillation due to the very close boiling points of ST and EB. Here, we show that the molecular sieving properties of easily scalable and stable trianglimine crystals offer ultrahigh selectivity (99%) for styrene separation. The unique molecular sieving properties of trianglimine crystals are corroborated by DFT calculations, suggesting that the incorporation of the nonplanar EB requires a significant deformation of the macrocyclic cavity whereas the planar ST can be easily accommodated in the cavity.

AB - The separation of styrene (ST) and ethylbenzene (EB) mixtures is of great importance in the petrochemical and plastics industries. Current technology employs multiple cycles of energy-intensive distillation due to the very close boiling points of ST and EB. Here, we show that the molecular sieving properties of easily scalable and stable trianglimine crystals offer ultrahigh selectivity (99%) for styrene separation. The unique molecular sieving properties of trianglimine crystals are corroborated by DFT calculations, suggesting that the incorporation of the nonplanar EB requires a significant deformation of the macrocyclic cavity whereas the planar ST can be easily accommodated in the cavity.

UR - http://hdl.handle.net/10754/668382

UR - https://pubs.acs.org/doi/10.1021/jacs.0c13019

U2 - 10.1021/jacs.0c13019

DO - 10.1021/jacs.0c13019

M3 - Article

C2 - 33691071

SN - 0002-7863

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

ER -

Adsorptive Molecular Sieving of Styrene over Ethylbenzene by Trianglimine Crystals

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CCDC 2061332: Experimental Crystal Structure Determination : 7,14,25,32,43,50-hexaazadecacyclo[50.2.2.22,5.216,19.220,23.234,37.238,41.08,13.026,31.044,49]hexahexaconta-1(54),2,4,6,14,16,18,20,22,24,32,34,36,38,40,42,50,52,55,57,59,61,63,65-tetracosaene et

CCDC 2061333: Experimental Crystal Structure Determination : 7,14,25,32,43,50-hexaazadecacyclo[50.2.2.22,5.216,19.220,23.234,37.238,41.08,13.026,31.044,49]hexahexaconta-1(54),2,4,6,14,16,18,20,22,24,32,34,36,38,40,42,50,52,55,57,59,61,63,65-tetracosaene un

CCDC 2061331: Experimental Crystal Structure Determination : 7,14,25,32,43,50-hexaazadecacyclo[50.2.2.22,5.216,19.220,23.234,37.238,41.08,13.026,31.044,49]hexahexaconta-1(54),2,4,6,14,16,18,20,22,24,32,34,36,38,40,42,50,52,55,57,59,61,63,65-tetracosaene et

Cite this

Adsorptive Molecular Sieving of Styrene over Ethylbenzene by Trianglimine Crystals

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Datasets

CCDC 2061332: Experimental Crystal Structure Determination : 7,14,25,32,43,50-hexaazadecacyclo[50.2.2.22,5.216,19.220,23.234,37.238,41.08,13.026,31.044,49]hexahexaconta-1(54),2,4,6,14,16,18,20,22,24,32,34,36,38,40,42,50,52,55,57,59,61,63,65-tetracosaene et

CCDC 2061333: Experimental Crystal Structure Determination : 7,14,25,32,43,50-hexaazadecacyclo[50.2.2.22,5.216,19.220,23.234,37.238,41.08,13.026,31.044,49]hexahexaconta-1(54),2,4,6,14,16,18,20,22,24,32,34,36,38,40,42,50,52,55,57,59,61,63,65-tetracosaene un

CCDC 2061331: Experimental Crystal Structure Determination : 7,14,25,32,43,50-hexaazadecacyclo[50.2.2.22,5.216,19.220,23.234,37.238,41.08,13.026,31.044,49]hexahexaconta-1(54),2,4,6,14,16,18,20,22,24,32,34,36,38,40,42,50,52,55,57,59,61,63,65-tetracosaene et

Cite this