Conformational Chirality of Single-Crystal Covalent Organic Frameworks DOI
Zhipeng Zhou,

Guohong Cai,

Zeyue Zhang

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(49), P. 34064 - 34069

Published: Nov. 29, 2024

The crystallization of organic polymers is often hindered by chiral units, hence resulting in typically existing as amorphous or partially crystalline phases such natural rubber and cellulose. Similarly, an emerging polymer, covalent frameworks (COFs) also inevitably face a delicate balance between units crystallization, limiting their production applications separation, catalysis, optics. Here, we present general strategy for producing series conformational COFs with high crystallinity through breaking the meso conformation achiral COFs. Conformational chirality COF-300 was constructed involving amino-acid derivative templates during synthesis proven to have excellent thermodynamic (200 °C annealing air) dynamic stability (61% cell volume change). stereochemistry crystals can be controllably tuned templates, wide-range circular dichroism signals from ultraviolet infrared wavelengths absorption dissymmetry factors (

Language: Английский

Recent Advances in the Utilization of Chiral Covalent Organic Frameworks for Asymmetric Photocatalysis DOI Creative Commons
Peng Liu,

Weijun Dai,

Xianfu Shen

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(21), P. 5006 - 5006

Published: Oct. 23, 2024

The use of light energy to drive asymmetric organic transformations produce high-value-added compounds is attracting increasing interest as a sustainable strategy for solving environmental problems and addressing the crisis. Chiral covalent frameworks (COFs), porous crystalline chiral materials, have become an important platform on which explore new photocatalytic materials due their precise tunability, structure, function. This review highlights recent research progress COFs composites, evaluating application catalysts in terms structure. Finally, limitations challenges photocatalysis are discussed, with future opportunities being identified.

Language: Английский

Citations

2
Conformational Chirality of Single-Crystal Covalent Organic Frameworks DOI
Zhipeng Zhou,

Guohong Cai,

Zeyue Zhang

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(49), P. 34064 - 34069

Published: Nov. 29, 2024

The crystallization of organic polymers is often hindered by chiral units, hence resulting in typically existing as amorphous or partially crystalline phases such natural rubber and cellulose. Similarly, an emerging polymer, covalent frameworks (COFs) also inevitably face a delicate balance between units crystallization, limiting their production applications separation, catalysis, optics. Here, we present general strategy for producing series conformational COFs with high crystallinity through breaking the meso conformation achiral COFs. Conformational chirality COF-300 was constructed involving amino-acid derivative templates during synthesis proven to have excellent thermodynamic (200 °C annealing air) dynamic stability (61% cell volume change). stereochemistry crystals can be controllably tuned templates, wide-range circular dichroism signals from ultraviolet infrared wavelengths absorption dissymmetry factors (

Language: Английский

Citations

1