Issue 8, 2024

From insulator to semiconductor: effect of host–guest interactions on charge transport in M-MOF-74 metal–organic frameworks

Abstract

Here, we report an air-free approach to infiltrate isostructural metal–organic frameworks (MOFs), M-MOF-74 (M = Cu, Mn, Zn, Mg), with conjugated acceptor 7,7,8,8-tetracyanoquinodimethane (TCNQ). The TCNQ@M-MOF-74 compounds exhibit a striking correlation between their bulk conductivities and the open d shell variants (Cu, Mn), arising from TCNQ p-doping of the MOFs. Importantly, conjugation of the guest molecule is a prerequisite for inducing electrical conductivity in these systems.

Graphical abstract: From insulator to semiconductor: effect of host–guest interactions on charge transport in M-MOF-74 metal–organic frameworks

Supplementary files

Article information

Article type
Communication
Submitted
13 Nov 2023
Accepted
08 Jan 2024
First published
17 Jan 2024

J. Mater. Chem. C, 2024,12, 2699-2704

From insulator to semiconductor: effect of host–guest interactions on charge transport in M-MOF-74 metal–organic frameworks

S. M. Angel, N. S. Barnett, A. A. Talin, M. E. Foster, V. Stavila, M. D. Allendorf and M. C. So, J. Mater. Chem. C, 2024, 12, 2699 DOI: 10.1039/D3TC04155G

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