Guest differentiation and fingerprinting based on the conformational diversity of a dynamic corannulene-based cage

Shao, Chengyuan; Zhao, Yani; Han, Senkai; Huang, Fu Qiang; Guo, Weijie; Jiang, Hua; Wang, Ying

doi:10.1039/d2qo02028a

Cited by 4 publications

(2 citation statements)

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“…Nevertheless, the properties of corannulene-based molecular cages, including those in the aspect of host–guest interactions, had not been examined for quite a long time. We recently reported the first example of corannulene-based molecular cage 70 , 71 , constructed by coordination-driven self-assembly of 1,3,5,7,9-penta(pyridyl-3-yl)corannulene ligands and Ag + cations. However, this cage is not suitable for the present purpose because the involved linear bidentate coordination is, to some extent, unfavorable to the modulation of the inner cavity due to the lack of diversity in the coordination pattern.…”

Section: Resultsmentioning

confidence: 99%

Dual-controlled guest release from coordination cages

Yao,

Shao,

Wang

et al. 2024

Commun Chem

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Despite having significant applications in the construction of controlled delivery systems with high anti-interference capability, to our knowledge dual-controlled molecular release has not yet been achieved based on small molecular/supramolecular entities. Herein, we report a dual-controlled release system based on coordination cages, for which releasing the guest from the cage demands synchronously altering the coordinative metal cations and the solvent. The cages, Hg5L2 and Ag5L2, are constructed via coordination-driven self-assembly of a corannulene-based ligand. While Hg5L2 shows a solvent-independent guest encapsulation in all the studied solvents, Ag5L2 is able to encapsulate the guests in only some of the solvents, such as acetone-d6, but will liberate the encapsulated guests in 1,1,2,2-tetrachloroethane-d2. Hg5L2 and Ag5L2 are interconvertible. Thus, the release of guests from Hg5L2 in acetone-d6 can be achieved, but requires two separate operations, including metal substitutions and a change of the solvent. Dual-controlled systems as such could be useful in complicated molecular release process to avoid those undesired stimulus-responses.

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Section: Resultsmentioning

confidence: 99%

Dual-controlled guest release from coordination cages

Yao,

Shao,

Wang

et al. 2024

Commun Chem

Self Cite

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“…67,69 Nevertheless, the properties of corannulene-based molecular cages, including those in the aspect of host-guest interactions, had not been examined for quite a long time. We recently reported the rst example of corannulene-based molecular cage, 70,71 constructed by coordination-driven selfassembly of 1,3,5,7,9-penta(pyridyl-3-yl)corannulene ligands and Ag + cations. However, this cage is not suitable for the present purpose because the involved linear bidentate coordination is, to some extent, unfavorable to the modulation of the inner cavity due to the lack of diversity in coordination pattern.…”

Section: Resultsmentioning

confidence: 99%

A Dual-controlled Guest Release from Cages

Wang,

Yao,

Shao

et al. 2023

Preprint

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Despite having significant applications in the construction of controlled delivery systems with high anti-interference capability, dual-controlled molecular release has not yet been achieved based on small molecular/supramolecular entities. Herein, we report a dual-controlled release system based on coordination cages, for which releasing the guest from the cage demands synchronously altering the coordinative metal cations and the solvent. The cages, Hg5L2 and Ag5L2, are constructed via coordination-driven self-assembly of a corannulene-based ligand. While Hg5L2 shows a solvent-independent guest encapsulation in all the studied solvents, Ag5L2 is able to encapsulate the guests in only some of the solvents, such as acetone-d6, but will liberate the encapsulated guests in 1,1,2,2-tetrachloroethane-d2. Hg5L2 and Ag5L2 are interconvertible. Thus, the release of guests from Hg5L2 in acetone-d6 can be achieved, but requires two separate operations, including metal substitutions and a change of the solvent. In chemistry, dual-controlled systems such as this have the potential in programmable synthesis, cooperating with single-controlled guest release systems to sequentially release different reactants/catalysts.

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