Surface charges of porous coordination cage tune the catalytic reactivity of Knoevenagel condensation

Liang, Chenjia; Yuan, Jiangpei; Zhu, Chengfeng; Fang, Yu

doi:10.1016/j.cattod.2021.11.008

Cited by 7 publications

(4 citation statements)

References 22 publications

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“…6m and Supplementary Fig. 67 ) 57 , 59 . In addition, heterogeneous MIL-101@PCCs catalysts can be reused multiple times without affecting the activity, selectivity, morphology, and crystallinity (Supplementary Figs.…”

Section: Resultsmentioning

confidence: 99%

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A cage-on-MOF strategy to coordinatively functionalize mesoporous MOFs for manipulating selectivity in adsorption and catalysis

Liang,

Yang,

Wang

et al. 2023

Nat Commun

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Functionalizing porous materials with capping agents generates hybrid materials with enhanced properties, while the challenge is how to improve the selectivity and maintain the porosity of the parent framework. Herein, we developed a “Cage-on-MOF” strategy to tune the recognition and catalytic properties of MOFs without impairing their porosity. Two types of porous coordination cages (PCCs) of opposite charges containing secondary binding groups were developed to coordinatively functionalize two distinct porous MOFs, namely MOF@PCC nanocomposites. We demonstrated that the surface-capped PCCs can act as “modulators” to effectively tune the surface charge, stability, and adsorption behavior of different host MOF particles. More importantly, the MOF@PCCs can serve as selective heterogeneous catalysts for condensation reactions to achieve reversed product selectivity and excellent recyclability. This work sets the foundation for using molecular cages as porous surface-capping agents to functionalize and manipulate another porous material, without affecting the intrinsic properties of the parent framework.

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Section: Resultsmentioning

confidence: 99%

“…35 ). Finally, the product is desorbed from the catalyst surface 57 . The Knoevenagel condensation reaction catalyzed by PCC-5 undergoes a similar process (Supplementary Fig.…”

Section: Resultsmentioning

confidence: 99%

A cage-on-MOF strategy to coordinatively functionalize mesoporous MOFs for manipulating selectivity in adsorption and catalysis

Liang,

Yang,

Wang

et al. 2023

Nat Commun

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“…63 Another advantage of PCC is its ability to fine-tune its net charge within the same topology, which facilitates the exploration of "structure-property-relationships" in various applications such as host-guest chemistry and catalysis. 97,98 This section focuses on the photocatalytic organic transformation applications of self-assembled PCCs.…”

Section: Synthesis Of Porous Molecular Cagesmentioning

confidence: 99%

Recent advances in porous molecular cages for photocatalytic organic conversions

Peng

Liu

et al. 2023

Dalton Trans.

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“…38). 191 Because of the charge effect, CA-PCC 32 with a high negative surface charge exhibits strong affinity to positive molecule Rhodamine B (RhB) and expels the negative dye methyl orange (MO) (Fig. 38b).…”

Section: Macrocycle-derived Pccsmentioning

confidence: 99%

Organo-macrocycle-containing hierarchical metal–organic frameworks and cages: design, structures, and applications

Wang

et al. 2022

Chem. Soc. Rev.

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Surface charges of porous coordination cage tune the catalytic reactivity of Knoevenagel condensation

Cited by 7 publications

References 22 publications

A cage-on-MOF strategy to coordinatively functionalize mesoporous MOFs for manipulating selectivity in adsorption and catalysis

A cage-on-MOF strategy to coordinatively functionalize mesoporous MOFs for manipulating selectivity in adsorption and catalysis

Recent advances in porous molecular cages for photocatalytic organic conversions

Organo-macrocycle-containing hierarchical metal–organic frameworks and cages: design, structures, and applications

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