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Raman and IR Spectroelectrochemical Methods as Tools to Analyze Conjugated Organic Compounds

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Reticular Chemistry for Optical Sensing of Anions.

Aasif Helal¹, Mohd Yusuf Khan¹, Abuzar Khan¹

¹Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia.

International Journal of Molecular Sciences

|September 9, 2023

Summary

Reticular chemistry enables novel porous materials for selective anion detection using optical sensing. These advanced platforms offer high sensitivity, stability, and tunable electronic properties for sensing applications.

Keywords:

Covalent-Organic Frameworks Metal-Organic Frameworks Zeolitic Imidazolate Frameworks anion recognition chromogenic fluorogenic

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Area of Science:

Materials Science
Chemistry
Nanotechnology

Background:

Reticular chemistry has emerged as a powerful strategy for designing porous crystalline materials.
Optical sensing techniques, including chromogenic and fluorogenic methods, are explored for analyzing distinct anions.
Developing ideal platforms for anion recognition remains a key challenge in materials science.

Purpose of the Study:

To present novel platforms for anion recognition utilizing reticular chemistry.
To highlight materials with high selectivity, sensitivity, and tunable electronic properties for anion detection.
To discuss the role of Metal-Organic Frameworks (MOFs), Zeolitic Imidazolate Frameworks (ZIFs), and Covalent-Organic Frameworks (COFs) in anion sensing.

Main Methods:

Assembly of metal-containing units with organic linkers to create crystalline porous materials.
Utilizing pre- and post-synthetic modification of linkers and metal oxide clusters.
Employing optical sensing techniques (chromogenic and fluorogenic) for anion detection.

Main Results:

Novel platforms demonstrating high selectivity and sensitivity for anion recognition.
Materials exhibiting strong emission, electronic tunability, and robust thermal and chemical stability.
Successful application of MOFs, ZIFs, and COFs in anion sensing platforms.

Conclusions:

Reticular chemistry provides versatile platforms for developing advanced anion sensors.
The presented materials offer significant advantages in terms of performance and stability for anion detection.
Further exploration of sensing mechanisms in these porous materials is warranted.