Adsorptive separation of <i>para</i>-xylene by nonporous adaptive crystals of phenanthrene[2]arene

Ying, Hanjie; Duan, Yin-Rong; Ding, Ming‐Wu; Tang, Lin-Li; Zeng, Fei

doi:10.1039/d2ra03773d

Cited by 6 publications

(3 citation statements)

References 47 publications

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“…Moreover, they optimized the synthesis of precursor 90 in their later work, which was beneficial to the subsequent large-scale production of 91. 90 Crystal structures showed that the dimethoxybenzene subunits connected to the phenanthrene subunits in 91 were twisted to form a rhombicshaped cavity. [6]arene.…”

Section: Leaning Pillarmentioning

confidence: 99%

Recent advances in the synthesis and applications of macrocyclic arenes

Han

Chen

2023

Chem. Soc. Rev.

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Section: Leaning Pillarmentioning

confidence: 99%

Recent advances in the synthesis and applications of macrocyclic arenes

Han

Chen

2023

Chem. Soc. Rev.

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“…65 In separate work, Khashab and collaborators developed an efficient adsorptive molecular sieving strategy using crystalline BPTI and showed in particular an effective separation of the MX isomer from an equimolar mixture of xylenes with over 91% fidelity (Figure 8a). 66 The selectivity is attributed to the trianglelike cavity of BPTI, which can capture specific guests 67 Organic cages have also been used for xylene isomer separations. In 2013, Cooper and his team reported that the crystalline porous organic cages CC3 and CC5 could separate xylene isomers based on size and shape specificity.…”

Section: Ethylbenzene Versus Styrenementioning

confidence: 99%

“…The selectivity is attributed to the trianglelike cavity of BPTI , which can capture specific guests (i.e., MX ) based on size/shape-fitting and the effect of multiple C–H···π interactions (Figure b and c). Later in 2022, Hou et al reported another NACs material based on a phenanthrene[2]arene ( P2A ) macrocycle that allowed separation of PX from the other xylene isomers following the same principle …”

Section: Hydrocarbon Separationsmentioning

confidence: 99%

Industrial Separation Challenges: How Does Supramolecular Chemistry Help?

Zhang,

Lin,

Huang

et al. 2023

J. Am. Chem. Soc.

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The chemical industry and the chemical processes underscoring it are under intense scrutiny as the demands for the transition to more sustainable and environmentally friendly practices are increasing. Traditional industrial separation systems, such as thermally driven distillation for hydrocarbon purification, are energy intensive. The development of more energy efficient separation technologies is thus emerging as a critical need, as is the creation of new materials that may permit a transition away from classic distillation-based separations. In this Perspective, we focus on porous organic cages and macrocycles that can adsorb guest molecules selectively through various host−guest interactions and permit molecular sieving behavior at the molecular level. Specifically, we summarize the recent advances where receptor-based adsorbent materials have been shown to be effective for industrially relevant hydrocarbon separations, highlighting the underlying host−guest interactions that impart selectivity and permit the observed separations. This approach to sustainable separations is currently in its infancy. Nevertheless, several receptor-based adsorbent materials with extrinsic/intrinsic voids or special functional groups have been reported in recent years that can selectively capture various targeted guest molecules. We believe that the understanding of the interactions that drive selectivity at a molecular level accruing from these initial systems will permit an ever-more-effective "bottom-up" design of tailored molecular sieves that, in due course, will allow adsorbent material-based approaches to separations to transition from the laboratory into an industrial setting.

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