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Synthesis and Characterization of Functionalized Metal-organic Frameworks
Published on: September 5, 2014
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An Amide-Functionalized Pillar-Layered Metal-Organic Framework Based on Mixed Linker Systems with Enhanced
Reza Abazari1, Marzieh Nadafan2, Soheila Sanati1
1Department of Inorganic Chemistry, Faculty of Science, University of Maragheh, P.O. Box 55181-83111, Maragheh Iran.
Inorganic Chemistry
|September 22, 2025
Summary
Researchers developed a novel metal-organic framework (MOF) with excellent nonlinear optical (NLO) properties. This new material shows promise for advanced photonics devices, optical switching, and power-limiting applications.
Area of Science:
- Materials Science
- Optoelectronics
- Chemistry
Background:
- Development of novel nonlinear optical (NLO) materials is crucial for optical switching and communications.
- Metal-organic frameworks (MOFs) are explored for their tunable structures and potential NLO applications.
Purpose of the Study:
- To investigate the third-order NLO response of an amide-functionalized pillar-layered cobalt-based MOF.
- To evaluate the potential of this MOF for photonics devices.
Main Methods:
- Synthesis and characterization of a pillar-layered MOF with mixed ligands (cobalt ions, 4,4'-oxybis(benzoic acid), and N,N'-bis(4-pyridylformamide)-1,4-benzenediamine).
- Experimental inquiry into the third-order NLO response using Z-scan technique.
Main Results:
- The synthesized MOF exhibits a complex porous structure (3,4,5T94 topology).
- The MOF demonstrates strong intramolecular charge-transfer capabilities due to its π-conjugated system and nitrogen derivatives.
- Significant NLO profile observed with an NLR index (n2) of (6.6–19.1) × 10⁻⁸ cm²/W and NLA coefficient (β) of (2.92–14.27) × 10⁻³ cm/W.
Conclusions:
- The pillared Co-MOF with mixed ligands shows significant potential as a NLO material.
- The observed NLO properties are attributed to factors including metal ion transitions, charge transfer, and structural features.
- This MOF is a promising candidate for photonics devices, optical switches, and optical power-limiting applications.
