Enhancing proton conduction in a metal-organic framework by isomorphous ligand replacement

SiRim Kim; Karl W Dawson; Benjamin S Gelfand; Jared M Taylor; George K H Shimizu

doi:10.1021/ja310675x

Enhancing proton conduction in a metal-organic framework by isomorphous ligand replacement

J Am Chem Soc. 2013 Jan 23;135(3):963-6. doi: 10.1021/ja310675x. Epub 2013 Jan 7.

Authors

SiRim Kim¹, Karl W Dawson, Benjamin S Gelfand, Jared M Taylor, George K H Shimizu

Affiliation

¹ Department of Chemistry, University of Calgary, Calgary, AB, Canada, T2N 1N4.

PMID: 23286895
DOI: 10.1021/ja310675x

Abstract

Using the concept of isomorphous replacement applied to entire ligands, a C(3)-symmetric trisulfonate ligand was substituted with a C(3)-symmetric tris(hydrogen phosphonate) ligand in a proton conducting metal-organic framework (MOF). The resulting material, PCMOF2½, has its proton conduction raised 1.5 orders of magnitude compared to the parent material, to 2.1 × 10(-2) S cm(-1) at 90% relative humidity and 85 °C, while maintaining the parent MOF structure.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Ligands
Models, Molecular
Organometallic Compounds / chemistry*
Protons*

Substances

Ligands
Organometallic Compounds
Protons