Ionic Hydrogen‐Bonded Organic Frameworks: A New Type of Porous Organic Solid Base

Y Ying Hou H Han‐Ru Fang (State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou People's Republic of China) Y Yu‐Lin Li (State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou P.R. China) A An‐An Zhang (State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou P.R. China) X Xin‐Song Huang (State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou P.R. China) L Lei Cai (New Cornerstone Science Laboratory, Beijing Advanced Innovation Center for Integrated Circuits, School of Integrated Circuits, Peking University, Beijing, China.) Q Qi Yin (School of Materials Science and Engineering) R Rui Wang J Jin‐Lin Li (State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou P.R. China) T Tian‐Fu Liu (State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou People's Republic of China)

Abstract

Abstract Solid base offers advantages in terms of the ease of handling, environmentally sustainable processes, and tunable interfacial properties. Despite of these benefits, the exploration of new solid bases remains challenging and is an underdeveloped area of research. In this work, we report the discovery of the inherent basicity of hydrogen‐bonded organic frameworks (HOFs). The high crystallinity of HOFs enables us to monitor the precise structure changes and proton transfer process during acid‐base neutralization reaction through single‐crystal X‐ray diffraction. With this information, the origin of basicity and the underlying mechanism can be identified, which further guide us to discover other porous solid bases and unveil the universal characteristic of some anionic HOFs. The practical use of the porous solid bases was demonstrated by base‐catalyzed reactions, exhibiting high activity and selectivity. This study enriches the solid‐base family by introducing a type of materials featured with high porosity, high crystallinity, and modular structure.

Article Details

Volume / Issue Vol. 64, Issue 38
Published September 15, 2025
ISSN 1433-7851
Publisher Wiley

Journal Info

Angewandte Chemie International Edition

Wiley

ISSN: 1433-7851 Physical Sciences

Authors (10)

Y

Ying Hou

H

Han‐Ru Fang

State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou People's Republic of China

Y

Yu‐Lin Li

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou P.R. China

A

An‐An Zhang

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou P.R. China

X

Xin‐Song Huang

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou P.R. China

L

Lei Cai

New Cornerstone Science Laboratory, Beijing Advanced Innovation Center for Integrated Circuits, School of Integrated Circuits, Peking University, Beijing, China.

Q

Qi Yin

School of Materials Science and Engineering

R

Rui Wang

J

Jin‐Lin Li

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou P.R. China

T

Tian‐Fu Liu

State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou People's Republic of China