title: Opening ZIF-8: a catalytically active zeolitic imidazolate framework of sodalite topology with unsubstituted linkers.
abstract: A zeolitic imidazolate framework material of SOD topology possessing primarily unsubstituted imidazolate (im) linkers has been synthesized via solvent-assisted linker exchange (SALE) of ZIF-8. The structure of the new material, SALEM-2, has been confirmed through (1)H NMR and powder and single-crystal X-ray diffraction. SALEM-2 is the first example of a porous Zn(im)(2) ZIF possessing a truly zeolitic topology that can be obtained in bulk quantities. Upon treatment with n-butyllithium, the open analogue exhibits Brønsted base catalysis that cannot be accomplished by the parent material ZIF-8. Additionally, it displays a different size cutoff for uptake and release of molecular guests than does ZIF-8.
authors.affiliation: Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States.
authors.forename: Olga
authors.initials: O
authors.lastname: Karagiaridi
authors.forename: Marianne B
authors.initials: MB
authors.lastname: Lalonde
authors.forename: Wojciech
authors.initials: W
authors.lastname: Bury
authors.forename: Amy A
authors.initials: AA
authors.lastname: Sarjeant
authors.forename: Omar K
authors.initials: OK
authors.lastname: Farha
authors.forename: Joseph T
authors.initials: JT
authors.lastname: Hupp
mesh_terms: D002384:Catalysis; D007093:Imidazoles / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D015394:Molecular Structure; D010316:Particle Size; D033362:Powder Diffraction; D017641:Zeolites / Q000138:chemical synthesis / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry
chemical_list: D007093:Imidazoles; D017641:Zeolites; D015032:Zinc