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Opening ZIF-8 : a catalytically active zeolitic imidazolate framework of sodalite topology with unsubstituted linkers.
Autorzy
Rok wydania
2012
Czasopismo
Journal of the American Chemical Society
Numer woluminu
134
Strony
18790-18796
DOI
10.1021/ja308786r
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
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 1H 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.
Adres publiczny
http://dx.doi.org/10.1021/ja308786r