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Synthesis and Characterization of Functionalized Metal-organic Frameworks

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Published on: September 5, 2014

ResponZIF Structures: Zeolitic Imidazolate Frameworks as Stimuli-Responsive Materials.

Paul Iacomi¹, Guillaume Maurin¹

¹UMR 5253, CNRS, ENSCM, Institut Charles Gerhardt Montpellier, University of Montpellier, Montpellier 34293, France.

ACS Applied Materials & Interfaces

|October 20, 2021

Summary

Zeolitic imidazolate frameworks (ZIFs), a type of metal-organic framework (MOF), exhibit remarkable structural changes in response to external stimuli. This review explores their stimuli-responsive properties and characterization methods.

Keywords:

MOFs advanced characterization molecular simulations soft flexible crystals stimuli-response structural dynamics zeolitic imidazolate frameworks (ZIFs)

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Area of Science:

Materials Science
Chemistry

Background:

Zeolitic imidazolate frameworks (ZIFs) are a subclass of metal-organic frameworks (MOFs) known for their synthetic accessibility and stability.
Prototypical ZIFs like ZIF-8 exemplify the potential of porous coordination polymers as advanced materials.
ZIFs are recognized as stimuli-responsive materials due to their significant structural transformations under external influences.

Purpose of the Study:

To review the current understanding of triggered structural and electronic responses in ZIFs.
To describe experimental and computational methodologies for studying these phenomena.
To summarize the stimuli-responsive behavior of ZIF-8, ZIF-7, ZIF-4, and ZIF-zni.

Main Methods:

Literature review of ZIFs and stimuli-responsive materials.
Analysis of experimental techniques for characterizing ZIF responses.
Overview of computational approaches for modeling ZIF behavior.

Main Results:

ZIFs exhibit diverse responses including linker/bond dynamics, phase transitions, and luminescence changes.
Specific examples of stimuli-responsive ZIFs (ZIF-8, ZIF-7, ZIF-4, ZIF-zni) are detailed.
Current methodologies effectively probe the complex phenomena in responsive ZIFs.

Conclusions:

Understanding ZIFs' flexible properties is crucial for advancing stimuli-responsive materials.
Challenges remain in characterizing and fundamentally understanding responsive ZIFs.
Exploiting ZIF flexibility opens new avenues for innovative applications.