Switchable electrical conductivity in a three-dimensional metal-organic framework via reversible ligand n-doping

Hanna C Wentz; Grigorii Skorupskii; Ana B Bonfim; Jenna L Mancuso; Christopher H Hendon; Evan H Oriel; Graham T Sazama; Michael G Campbell

doi:10.1039/c9sc06150a

Switchable electrical conductivity in a three-dimensional metal-organic framework via reversible ligand n-doping

Chem Sci. 2019 Dec 18;11(5):1342-1346. doi: 10.1039/c9sc06150a.

Authors

Hanna C Wentz¹, Grigorii Skorupskii², Ana B Bonfim¹, Jenna L Mancuso³, Christopher H Hendon³, Evan H Oriel⁴, Graham T Sazama⁴, Michael G Campbell¹

Affiliations

¹ Department of Chemistry, Barnard College New York New York 10027 USA mcampbel@barnard.edu.
² Department of Chemistry, Massachusetts Institute of Technology Cambridge Massachusetts 02139 USA.
³ Department of Chemistry and Biochemistry, University of Oregon Eugene Oregon 97403 USA.
⁴ Department of Chemistry, Lawrence University Appleton Wisconsin 54911 USA.

Abstract

Redox-active metal-organic frameworks (MOFs) are promising materials for a number of next-generation technologies, and recent work has shown that redox manipulation can dramatically enhance electrical conductivity in MOFs. However, ligand-based strategies for controlling conductivity remain under-developed, particularly those that make use of reversible redox processes. Here we report the first use of ligand n-doping to engender electrical conductivity in a porous 3D MOF, leading to tunable conductivity values that span over six orders of magnitude. Moreover, this work represents the first example of redox switching leading to reversible conductivity changes in a 3D MOF.