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. 2021 Apr 12;60(16):8967-8975.
doi: 10.1002/anie.202015162. Epub 2021 Mar 5.

Macrocyclic Arenes-Based Conjugated Macrocycle Polymers for Highly Selective CO2 Capture and Iodine Adsorption

Dihua Dai  1 , Jie Yang  1 , Yong-Cun Zou  1 , Jia-Rui Wu  1 , Li-Li Tan  2 , Yan Wang  1 , Bao Li  3 , Tong Lu  3 , Bo Wang  4 , Ying-Wei Yang  1
Affiliations

Macrocyclic Arenes-Based Conjugated Macrocycle Polymers for Highly Selective CO2 Capture and Iodine Adsorption

Dihua Dai et al. Angew Chem Int Ed Engl. .

Abstract

Incorporating synthetic macrocycles with unique structures and distinct conformations into conjugated macrocycle polymers (CMPs) can endow the resulting materials with great potentials in gas uptake and pollutant adsorption. Here, four CMPs (CMP-n, n=1-4) capable of reversibly capturing iodine and efficiently separating carbon dioxide are constructed from per-triflate functionalized leaning tower[6]arene (LT6-OTf) and [2]biphenyl-extended pillar[6]arene (BpP6-OTf) via Pd-catalyzed Sonogashira-Hagihara cross-coupling reaction. Intriguingly, owing to the appropriate cavity size of LT6-OTf and the numerous aromatic rings in the framework, the newly designed CMP-4 possesses an outstanding I2 affinity with a large uptake capacity of 208 wt % in vapor and a great removal efficiency of 94 % in aqueous solutions. To our surprise, with no capacity to accommodate nitrogen, CMP-2 constructed from BpP6-OTf is able to specifically capture carbon dioxide at ambient conditions.

Keywords: conjugated polymers; iodine capture; selective adsorption; supramolecular chemistry; synthetic macrocycles.

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References

    1. None
    1. A. P. Côté, A. I. Benin, N. W. Ockwig, M. O'Keeffe, A. J. Matzger, O. M. Yaghi, Science 2005, 310, 1166-1170;
    1. C. Qian, Q. Y. Qi, G. F. Jiang, F. Z. Cui, Y. Tian, X. Zhao, J. Am. Chem. Soc. 2017, 139, 6736-6743;
    1. P. Wang, Q. Xu, Z. Li, W. Jiang, Q. Jiang, D. Jiang, Adv. Mater. 2018, 30, 1801991.
    1. None

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