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Friday, 11 March 2022

Conductive properties of metal- organic and covalent organic frameworks based on triphenylene

A publication in “Coordination Chemistry Reviews” by members of the ICN2 Nanostructured Functional Materials Group discusses synthesis approaches, properties and applications of MOFs and COFs based on triphenylene molecules.

In recent years, research on structures including triphenylene (TP) molecules has increased significantly, due to the appealing optoelectronic properties arising from their aromatic core. In particular, TP molecules are interesting components for the formation of Metal-Organic Frameworks (MOFs) and Covalent Organic Frameworks (COFs), not only for their enhanced electronic conduction, but also because of their inherent porosity, which makes of them good candidates for application in chemiresistors.

A paper published in “Coordination Chemistry Reviews” provides an overview of the synthesis techniques and properties of MOFs and COFs based on triphenylene. It is authored by  Dr Daniel Ruiz-Molina, leader of the ICN2 Nanostructured Functional Materials Group, and Dr Noemí Contreras-Pereda, former PhD student in the same group. It was written in collaboration with Dr Salvador Pané, from the Multi-Scale Robotics Lab of ETH Zuric, and Dr Josep Puigmartí-Luis, from the University of Barcelona.

The review summarises the various approaches used for the synthesis of two-dimensional TP-based MOFs and COFs and the effect that the resulting morphology and crystal orientation have on the properties of the materials produced, in particular the in-plane and out-of-plane electrical conductivities. It also provides several examples of functional devices fabricated with these materials and a discussion of the challenges and future prospects in this research field.

 

Reference article:

Noemí Contreras-Pereda, Salvador Pané, Josep Puigmartí-Luis, Daniel Ruiz-Molina, Conductive properties of triphenylene MOFs and COFs. Coordination Chemistry Reviews, Volume 460, 2022, 214459. DOI: 10.1016/j.ccr.2022.214459