title: Chemical and structural stability of zirconium-based metal-organic frameworks with large three-dimensional pores by linker engineering.
abstract: The synthesis of metal-organic frameworks with large three-dimensional channels that are permanently porous and chemically stable offers new opportunities in areas such as catalysis and separation. Two linkers (L1=4,4',4'',4'''-([1,1'-biphenyl]-3,3',5,5'-tetrayltetrakis(ethyne-2,1-diyl)) tetrabenzoic acid, L2=4,4',4'',4'''-(pyrene-1,3,6,8-tetrayltetrakis(ethyne-2,1-diyl))tetrabenzoic acid) were used that have equivalent connectivity and dimensions but quite distinct torsional flexibility. With these, a solid solution material, [Zr6 O4 (OH)4 (L1)2.6 (L2)0.4 ]⋅(solvent)x , was formed that has three-dimensional crystalline permanent porosity with a surface area of over 4000 m(2)  g(-1) that persists after immersion in water. These properties are not accessible for the isostructural phases made from the separate single linkers.
authors.affiliation: Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L697ZD (UK).
authors.forename: Suresh B
authors.initials: SB
authors.lastname: Kalidindi
authors.forename: Sanjit
authors.initials: S
authors.lastname: Nayak
authors.forename: Michael E
authors.initials: ME
authors.lastname: Briggs
authors.forename: Susanna
authors.initials: S
authors.lastname: Jansat
authors.forename: Alexandros P
authors.initials: AP
authors.lastname: Katsoulidis
authors.forename: Gary J
authors.initials: GJ
authors.lastname: Miller
authors.forename: John E
authors.initials: JE
authors.lastname: Warren
authors.forename: Dmytro
authors.initials: D
authors.lastname: Antypov
authors.forename: Furio
authors.initials: F
authors.lastname: Corà
authors.forename: Ben
authors.initials: B
authors.lastname: Slater
authors.forename: Mark R
authors.initials: MR
authors.lastname: Prestly
authors.forename: Carlos
authors.initials: C
authors.lastname: Martí-Gastaldo
authors.forename: Matthew J
authors.initials: MJ
authors.lastname: Rosseinsky
keywords: mesoporous materials; metal-organic frameworks; water stability; zirconium