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A chalcogen-bonded organic framework with permanent porosity

Yijie Jiang, Lingyao Wang*, Yuanbin Zhang*

https://doi.org/10.1016/j.cjsc.2026.101044

ABSTRACT

Collectively, this work not only achieves permanent porosity but also systematically reveals the unique advantages of chalcogen bonding in electronic structure, structural regeneration, and lattice dynamics. First, the permanent porosity of Trip3Tez-I (BET surface area of 1,509 m2 g-1) makes it a potential candidate for gas separation and sensing. Second, the semiconductor-like charge transport potential, revealed by DFT calculations showing appreciable band dispersion along the [Te···N]2n ribbons, offers possibilities for applications in optoelectronics. Third, the material self-heals: sonication in pyridine after thermal amorphization restores nearly full crystallinity and porosity, offering potential for healable flexible electronics. These characteristics make ChOFs a unique and promising class of noncovalent porous frameworks, warranting further exploration in both fundamental research and potential applications.

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