Design and structural characterization of a novel corrole-based covalent organic framework (COF): A strategic approach for metal ion sequestration

The 10th EuChemS Chemistry Congress, Antwerp, Belçika, 12 - 16 Temmuz 2026, ss.514, (Özet Bildiri)

IM - D1 - O20

Design and structural characterization of a novel corrole-based covalent organic framework (COF): A

strategic approach for metal ion sequestration

Hilal Kalkan1, Baris Temelli2

1Gazi University, TR, 2Hacettepe University, TR

The strategic integration of functional macrocycles into porous architectures is a key frontier in the

development of innovative materials for environmental sustainability. Covalent organic frameworks (COFs)

have emerged as versatile platforms for such integrations, however, the utilization of corrole macrocycles as

structural building blocks within COF architectures remains very limited, with only a few pioneering studies

reported in the recent literature1,2. Building upon our previous findings where corrole-based systems

demonstrated high removal efficiency and excellent reusability in the sequestration of heavy metal ions, this

study focuses on the design and precise synthesis of a next-generation corrole-COF material.

We report the synthesis of a novel corrole-based COF via the condensation reaction between an aminofunctionalized

corrole derivative and [2,2′-bipyridine]-5,5′-dicarbaldehyde (BPyDCA). The structural integrity

and long-range order of the framework were rigorously validated through spectroscopic methods and

microscopic analyses, supported by theoretical calculations. Preliminary metal-ion adsorption experiments

conducted with the synthesized corrole-COF material have yielded promising results, demonstrating high

interaction capacity and pronounced selectivity. While the overarching goal of this material design is targeted

towards high capacity environmental remediation, this work highlights the successful construction of the COF

skeleton and its intrinsic structural advantages. The resulting bifunctional framework establishes a robust

foundation for selective metal ion adsorption, expanding the library of innovative porous materials for ecological

protection.

Keywords: Corrole-based COFs, Environmental applications, Structural characterization, Innovative Porous

materials, Electronic structure

Acknowledgements: This work was supported by the Scientific Research Projects Unit of Gazi University

(Project No. FKB-2025-10592).

1Yang, J., André, L., Desbois, N., Gros, C. P., Brandès, S. Mater. Today Chem. 2023, 28, 101357.

2Qu, Y., Li, B., Chen, H., Liang, J. X., Wang, H., Zhu, C. J. Porphyrins Phthalocyanines 2024, 28, 272–281.