Covalent Organic Framework (COF-1) under High Pressure
Journal article, 2020

COF-1 has a structure with rigid 2D layers composed of benzene and B3O3 rings and weak van der Waals bonding between the layers. The as-synthesized COF-1 structure contains pores occupied by solvent molecules. A high surface area empty-pore structure is obtained after vacuum annealing. High-pressure XRD and Raman experiments with mesitylene-filled (COF-1-M) and empty-pore COF-1 demonstrate partial amorphization and collapse of the framework structure above 12–15 GPa. The ambient pressure structure of COF-1-M can be reversibly recovered after compression up to 10–15 GPa. Remarkable stability of highly porous COF-1 structure at pressures at least up to 10 GPa is found even for the empty-pore structure. The bulk modulus of the COF-1 structure (11.2(5) GPa) and linear incompressibilities (k[100]=111(5) GPa, k[001]=15.0(5) GPa) were evaluated from the analysis of XRD data and cross-checked against first-principles calculations. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

high pressure


DFT calculations

Raman spectroscopy

2D materials


Jinhua Sun

Umeå University

Chalmers, Industrial and Materials Science, Materials and manufacture

Artem Iakunkov

Umeå University

Igor A. Baburin

Technische Universität Dresden

Boby Joseph


Vincenzo Palermo


Chalmers, Industrial and Materials Science, Materials and manufacture

Alexandr V. Talyzin

Umeå University

Angewandte Chemie - International Edition

1433-7851 (ISSN) 1521-3773 (eISSN)

Vol. 59 3 1087-1092

Subject Categories

Inorganic Chemistry

Materials Chemistry

Structural Biology



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Latest update

9/8/2020 7