Issue 35, 2022

Oxidative control over the morphology of Cu3(HHTP)2, a 2D conductive metal–organic framework

Abstract

The morphology of electrically conductive metal–organic frameworks strongly impacts their performance in applications such as energy storage and electrochemical sensing. However, identifying the appropriate conditions needed to achieve a specific nanocrystal size and shape can be a time-consuming, empirical process. Here we show how partial ligand oxidation dictates the morphology of Cu3(HHTP)2 (HHTP = 2,3,6,7,10,11-hexahydroxytriphenylene), a prototypical 2D conductive metal–organic framework. Using organic quinones as the chemical oxidant, we demonstrate that partial oxidation of the ligand prior to metal binding alters the nanocrystal aspect ratio by over 60-fold. Systematically varying the extent of initial ligand oxidation leads to distinct rod, block, and flake-like morphologies. These results represent an important advance in the rational control of Cu3(HHTP)2 morphology and motivate future studies into how ligand oxidation impacts the nucleation and growth of 2D conductive metal–organic frameworks.

Graphical abstract: Oxidative control over the morphology of Cu3(HHTP)2, a 2D conductive metal–organic framework

Supplementary files

Article information

Article type
Edge Article
Submitted
29 Jūn. 2022
Accepted
16 Aug. 2022
First published
16 Aug. 2022
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2022,13, 10472-10478

Oxidative control over the morphology of Cu3(HHTP)2, a 2D conductive metal–organic framework

K. M. Snook, L. B. Zasada, D. Chehada and D. J. Xiao, Chem. Sci., 2022, 13, 10472 DOI: 10.1039/D2SC03648G

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