Conductive properties of triphenylene MOFs and COFs

Triphenylene (TP) based materials have experienced a great expansion in the latest years. TP molecules have interesting optoelectronic properties, arising from the aromatic core, which have been exploited in functional two-dimensional (2D) Metal-Organic Frameworks (MOFs) and Covalent Organic Frameworks (COFs) aside other organic polymers. In this review we summarize synthetic approaches of TP-based 2D MOFs and COFs emphasizing on the resulting morphology, crystalline domains and orientation, proven to have great impact on the properties and performance of these materials in functional devices. Specifically, we report a detailed description on the different TP-based 2D structures detailing the influence of the chemical and crystalline structure on the electronic properties, specially the in-plane and out-of-plane contribution to the electrical conductivity. Finally, we give also attention and present several examples of functional devices made out with these electronic materials with great impact in the literature as well as in future technological applications. (C) 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Automated summary

Triphenylene-based materials have shown significant progress in recent years, particularly in functional two-dimensional Metal-Organic Frameworks (MOFs) and Covalent Organic Frameworks (COFs). The optoelectronic properties of TP molecules, derived from their aromatic core, have been extensively utilized in these materials. This review provides a comprehensive summary of synthetic approaches for TP-based 2D MOFs and COFs, with a focus on the resulting morphology, crystalline domains, and orientation, which greatly influence the properties and performance of these materials in functional devices. Additionally, notable examples of functional devices utilizing these electronic materials are discussed, underscoring their impact in both the scientific literature and future technological applications.