title: Enhancing proton conduction in a metal-organic framework by isomorphous ligand replacement.
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.
authors.affiliation: Department of Chemistry, University of Calgary, Calgary, AB, Canada, T2N 1N4.
authors.forename: SiRim
authors.initials: S
authors.lastname: Kim
authors.forename: Karl W
authors.initials: KW
authors.lastname: Dawson
authors.forename: Benjamin S
authors.initials: BS
authors.lastname: Gelfand
authors.forename: Jared M
authors.initials: JM
authors.lastname: Taylor
authors.forename: George K H
authors.initials: GK
authors.lastname: Shimizu
mesh_terms: D008024:Ligands; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000737:chemistry*; D011522:Protons
chemical_list: D008024:Ligands; D009942:Organometallic Compounds; D011522:Protons