title: UiO-67-type Metal-Organic Frameworks with Enhanced Water Stability and Methane Adsorption Capacity.
abstract: The structure and properties of two new UiO-67-type metal-organic frameworks, along with their linker synthesis and powder and single crystal synthesis, are presented. The new MOFs, UiO-67-Me and UiO-67-BN, are based on 3,3'-dimethylbiphenyl and 1,1'-binaphthyl linker scaffolds, and show a much higher stability to water than the thoroughly investigated UiO-67, which is based on the biphenyl scaffold. On the basis of structure models obtained from single crystal X-ray diffraction, it is seen that these linkers are partly shielding the Zr cluster. The new materials have higher density than UiO-67, but show a higher volumetric adsorption capacity for methane. UiO-67-BN exhibits excellent reversible water sorption properties, and enhanced stability to aqueous solutions over a wide pH range; it is to the best of our knowledge the most stable Zr-MOF that is isostructural to UiO-67 in aqueous solutions.
authors.affiliation: Department of Chemistry, University of Oslo , P.O. Box 1033, Blindern, N-0371 Oslo, Norway.
authors.forename: Sigurd
authors.initials: S
authors.lastname: Øien-Ødegaard
authors.affiliation: Department of Chemistry, University of Oslo , P.O. Box 1033, Blindern, N-0371 Oslo, Norway.
authors.forename: Boris
authors.initials: B
authors.lastname: Bouchevreau
authors.affiliation: Department of Chemistry, University of Oslo , P.O. Box 1033, Blindern, N-0371 Oslo, Norway.
authors.forename: Knut
authors.initials: K
authors.lastname: Hylland
authors.affiliation: Department of Chemistry, University of Oslo , P.O. Box 1033, Blindern, N-0371 Oslo, Norway.
authors.forename: Lianpao
authors.initials: L
authors.lastname: Wu
authors.affiliation: SINTEF , P.O. Box. 124, Blindern, N-0314 Oslo, Norway.
authors.forename: Richard
authors.initials: R
authors.lastname: Blom
authors.affiliation: SINTEF , P.O. Box. 124, Blindern, N-0314 Oslo, Norway.
authors.forename: Carlos
authors.initials: C
authors.lastname: Grande
authors.affiliation: Department of Chemistry, University of Oslo , P.O. Box 1033, Blindern, N-0371 Oslo, Norway.
authors.forename: Unni
authors.initials: U
authors.lastname: Olsbye
authors.affiliation: Department of Chemistry, University of Oslo , P.O. Box 1033, Blindern, N-0371 Oslo, Norway.
authors.forename: Mats
authors.initials: M
authors.lastname: Tilset
authors.affiliation: Department of Chemistry, University of Oslo , P.O. Box 1033, Blindern, N-0371 Oslo, Norway.
authors.forename: Karl P
authors.initials: KP
authors.lastname: Lillerud