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Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties
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Perylene-Based Coordination Polymers: Synthesis, Fluorescent J-Aggregates, and Electrochemical Properties
Gonçalo Valente1, María Esteve-Rochina2, Sergio P C Alves3
1Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-393, Portugal.
Inorganic Chemistry
|May 8, 2023
Summary
Researchers developed a new method to create stable, crystalline perylene-based coordination polymers (CPs). These materials exhibit tunable luminescence and electrochemical properties, maintaining the perylene redox activity within the CP framework.
Area of Science:
- Materials Science
- Coordination Chemistry
- Organic Electronics
Background:
- Coordination polymers (CPs) and metal-organic frameworks (MOFs) can gain electronic functionalities from electroactive organic building blocks.
- Perylene moieties are of particular interest for introducing luminescence and redox properties into CPs.
- Developing stable, crystalline perylene-based CPs is crucial for advanced electronic applications.
Purpose of the Study:
- To present an innovative synthesis method for perylene-based coordination polymers (CPs).
- To investigate the structural, photophysical, and electrochemical properties of these novel CPs.
- To demonstrate the potential of perylene-containing CPs for tunable optical and electronic functionalities.
Main Methods:
- Synthesis of perylene-3,4,9,10-tetracarboxylate (PTC) based coordination polymers with transition metals (Co, Ni, Zn).
- Crystal structure determination using powder X-ray diffraction and Rietveld refinement.
- Photophysical characterization (emission bands) and quantum-chemical calculations for PTC-Zn.
- Solid-state cyclic voltammetry to assess electrochemical properties of PTC-TMs.
Main Results:
- A family of highly crystalline and stable isostructural CPs (PTC-TM) was successfully synthesized.
- The crystal structure reveals a dense, organized framework with perylene moieties in a herringbone arrangement.
- PTC-Zn exhibits both J-aggregation-based and monomer-like emission bands, explained by quantum-chemical calculations.
- Perylene redox properties are retained within the PTC-TM CP framework, confirmed by cyclic voltammetry.
Conclusions:
- A simple and effective method for synthesizing stable, crystalline perylene-based CPs was established.
- The synthesized CPs possess tunable optical and electrochemical properties in the solid state.
- This work provides a pathway for designing advanced functional materials incorporating perylene units.
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