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A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...

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Updated: Dec 14, 2025

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

Metal hydrogen-bonded organic frameworks: structure and performance.

Zhong-Hong Zhu¹, Hai-Ling Wang¹, Hua-Hong Zou¹

¹State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy of Guangxi Normal University, Guilin 541004, P. R. China. 18317725515@163.com gxnuchem@foxmail.com fliangoffice@yahoo.com.

Dalton Transactions (Cambridge, England : 2003)

|July 17, 2020

Summary

Researchers are developing new stable porous materials, focusing on metal-hydrogen bonded organic frameworks (M-HOFs). These advanced materials leverage metal complexes to enhance properties like magnetism and catalysis for broader applications.

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Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior

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Area of Science:

Materials Science
Supramolecular Chemistry
Coordination Chemistry

Background:

Porous materials are crucial, but stable structures remain a challenge.
Metal-hydrogen bonded organic frameworks (M-HOFs) are emerging porous molecular crystals.
Incorporating functional metal complexes can enhance M-HOF properties.

Purpose of the Study:

To review recent advancements in synthesizing M-HOFs using 3d, 4d, and 4f metal complexes.
To highlight the performance expansion of these M-HOFs.
To guide the development of new stable, functional porous materials.

Main Methods:

Synthesis of M-HOFs utilizing diverse metal complexes.
Characterization of M-HOF structures and properties.
Exploration of applications based on metal complex functionalities.

Main Results:

Successful synthesis of M-HOFs using various transition metal and lanthanide complexes.
Demonstration of enhanced properties such as magnetism, luminescence, sensing, and catalysis in M-HOFs.
Identification of synthetic challenges including complex coordination and steric hindrance.

Conclusions:

M-HOFs offer a promising platform for creating stable porous materials with tailored functions.
The strategic use of metal complexes is key to expanding M-HOF applications.
Further research is needed to overcome synthetic hurdles and unlock the full potential of M-HOFs.