Nanotechnology

Organic chemistry

Synthon

Hydrogen

Sorption

Porosity

Durability

Hydrogen bond

Adsorption

Engineering

Composite material

Chemistry

Materials science

Molecule

Supramolecular chemistry

Chemical engineering

Crystal engineering

Angewandte Chemie International Edition

Designing organic components that can be used to construct porous materials enables the preparation of tailored functionalized materials. Research into porous materials has seen a resurgence in the past decade as a result of finding of self‐standing porous molecular crystals (PMCs). Particularly, a number of crystalline systems with permanent porosity that are formed by self‐assembly through hydrogen bonding (H‐bonding) have been developed. Such systems are called hydrogen‐bonded organic frameworks (HOFs). Herein we systematically describe H‐bonding patterns (supramolecular synthons) and molecular structures (tectons) that have been used to achieve thermal and chemical durability, a large surface area, and functions, such as selective gas sorption and separation, which can provide design principles for constructing HOFs with permanent porosity.

Designing Hydrogen‐Bonded Organic Frameworks (HOFs) with Permanent Porosity