Construction of stable porous organic cages: from the perspective of chemical bonds

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(76), P. 10476 - 10487

Published: Jan. 1, 2024

Porous organic cages (POCs) are constructed from purely synthons by covalent linkages with intrinsic cavities and have shown potential applications in many areas. However, the majority of POC synthesis methods reported thus far relied on dynamically reversible imine linkages, which can be metastable unstable under humid or harsh chemical conditions. This instability significantly hampers their research prospects practical applications. Consequently, strategies to enhance stability POCs modifying bonds developing robust imperative for realizing full these materials. In this review, we aim highlight recent advancements synthesizing chemical-stable through approaches associated Additionally, propose further creating stable discuss future opportunities

Language: Английский

Organic Cage with Interconnected Aromatic Cavity‐Channel Pores for One‐Step Purification of Ethylene

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 28, 2025

Abstract Constructing a metal‐free adsorbent for one‐step separation of C 2 H 4 from mixture gas C2, is great significance and challenging. Here, porous aromatic cage ( PAC‐1 ) based on aldehyde‐amine condensation reported with diamond‐like interconnected cavity‐channel pores purification ethylene. exhibits superior (52.6 cm 3 g −1 6 (46.7 uptakes as well impressive /C selectivity (1.5) (1.4), remaining at the forefront advanced ‐selective adsorbents non‐metallic materials. The adsorption enthalpy (Q st 23.6 kJ mol , which requires less energy to regenerate than conventional MOF Breakthrough experiments demonstrate that can reduce penetration rate or through adsorbent, present quite valuable gas. Molecular simulations DFT studies have shown oxygen sites C─H in channels are more favorable anchor interaction over by 1.48 kcal C─H…π point cavity preferred 1.16 turn results .

Language: Английский

Unlocking the Power of Chirality: Surface Nanoarchitectonics of Modified Halloysite Nanotubes for Enantioselective Recognition

Talanta, Journal Year: 2025, Volume and Issue: 294, P. 128273 - 128273

Published: May 5, 2025

Language: Английский