A mutually stabilized host-guest pair

Zhang, Chi; Wang, Hongye; Zhong, Jie; Ye, Lei; Du, Renfeng; Zhang, Yang; Shen, Lu; Jiao, Tianyu; Zhu, Yulu; Zhu, Haiming; Li, Haoran

doi:10.1126/sciadv.aax6707

Cited by 13 publications

(12 citation statements)

References 32 publications

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“…The formation of receptor-substrate pairs has been demonstrated 222 to stabilize mutually the individual components. In this system, a covalent organic container, based on the p-electron-deficient building block trispyridiniumtriazine (TPZ 3+ ), was developed using click chemistry.…”

Section: Stabilization Of the Ground States Of Reactive Speciesmentioning

confidence: 99%

Emergent behavior in nanoconfined molecular containers

Liu

Stoddart

2021

Chem

110

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Section: Stabilization Of the Ground States Of Reactive Speciesmentioning

confidence: 99%

Emergent behavior in nanoconfined molecular containers

Liu

Stoddart

2021

Chem

110

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“…Porous organic cages, − an emerging class of porous materials composed of isolated, covalently bonded organic molecules with guest-accessible voids, are useful as host molecules, and have promising applications in selective guest inclusion, gas storage and separation, molecular separations, and nanoscale reaction vessels for catalysis. − Since the first pioneering work reported by Cooper et al in 2009, POCs have attracted increasing attention and significant progress has been made in the preparation and use of organic cages with different shapes and sizes to generate new porous organic solids. To date, only a few organic cages with cavity diameters larger than 2 nm have been reported .…”

Section: Introductionmentioning

confidence: 99%

Reticular Chemistry in the Construction of Porous Organic Cages

Wang

et al. 2020

J. Am. Chem. Soc.

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Reticular chemistry offers the possibility of systematic design of porous materials with different pores by varying the building blocks, while the emerging porous organic cage (POC) system remains generally unexplored. A series of new POCs with dimeric cages with odd−even behaviors, unprecedented trimeric triangular prisms, and the largest recorded hexameric octahedra have been prepared. These POCs are all constructed from the same tetratopic tetraformylresorcin[4]arene cavitand by simply varying the diamine ligands through Schiff-base reactions and are fully characterized by X-ray crystallography, gas sorption measurements, NMR spectroscopy, and mass spectrometry. The odd−even effects in the POC conformation changes of the [2 + 4] dimeric cages have been confirmed by density functional theory calculations, which are the first examples of odd−even effects reported in the cavitand-based cage system. Moreover, the "V" shape phenylenediamine linkers are responsible for the novel [3 + 6] triangular prisms. The window size and environment can be easily functionalized by different groups, providing a promising platform for the construction of multivariate POCs. Use of linear phenylenediamines led to record-breakingly large [6 + 12] truncated octahedral cages, the maximum inner cavity diameters and volumes of which could be readily modulated by increasing the spacer length of the phenylenediamine linkers. This work can lead to an understanding of the self-assembly behaviors of POCs and also sheds light on the rational design of POC materials for practical applications.

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“…It revealed that the “roof” and “floor” of cagearene-2 were planar, which was inherited from the 2,4,6-triphenyl-1,3,5-triazine unit. 16 Unfortunately, it was found that cagearene-2 was not as stable as cagearene-1 which may be due to the instability of the 1,3,5-triazine unit, 17 which obstructed its further use in the research of programmed release.…”

Section: Resultsmentioning

confidence: 99%