A Modular Tecton Matrix for Mechanosynthesis of Large-Pore Hydrogen-Bonded Organic Frameworks With Programmable Pore Environments.

Authors

Fangzhou Li, Xinyu Pang, Jayanta Samanta, Richard J Staples, Chenfeng Ke

Published in

Angewandte Chemie (International ed. in English). Pages e4338297. Sep 07, 2026. Epub Sep 07, 2026.

Abstract

Hydrogen-bonded organic frameworks (HOFs) offer versatile porous architectures, yet predictable pore expansion via tecton extension remains challenging because framework assembly is highly sensitive to solvent-mediated crystallization. Here, we establish a mechanosynthesis-enabled modular tecton matrix for constructing large-pore HOFs. Pairwise combination of complementary tectons systematically generates four micro- and mesoporous HOFs, including G4, which is difficult to obtain by solution crystallization. These HOFs exhibit surface areas up to 1824 m²/g, pore apertures up to 2.4 nm, with record CO₂ and C₂H₂ adsorption capacities for HOFs at 195 K. One-pot incorporation of AgOTf during mechanosynthesis enables programmable pore decoration, enhancing room-temperature C₂H₂ uptake through stronger framework-substrate interactions. This work establishes a modular tecton matrix enabled by mechanosynthesis as a general design and discovery strategy for constructing and functionalizing large-pore HOFs.

PMID:
42704239
Bibliographic data and abstract were imported from PubMed on 07 Sep 2026.

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