title: NMR signatures of the active sites in Sn-β zeolite.
abstract: Dynamic nuclear polarization surface enhanced NMR (DNP-SENS), Mössbauer spectroscopy, and computational chemistry were combined to obtain structural information on the active-site speciation in Sn-β zeolite. This approach unambiguously shows the presence of framework Sn(IV)-active sites in an octahedral environment, which probably correspond to so-called open and closed sites, respectively (namely, tin bound to three or four siloxy groups of the zeolite framework).
authors: Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir Prelog Weg 2, 8093 Zurich (Switzerland); Department of Chemistry & Department of Chemical and Biological Engineering, University of Wisconsin - Madison, 1101 University Avenue, Madison, WI 53706 (USA).
authors: Patrick
authors: P
authors: Wolf
authors: Maxence
authors: M
authors: Valla
authors: Aaron J
authors: AJ
authors: Rossini
authors: Aleix
authors: A
authors: Comas-Vives
authors: Francisco
authors: F
authors: Núñez-Zarur
authors: Bernard
authors: B
authors: Malaman
authors: Anne
authors: A
authors: Lesage
authors: Lyndon
authors: L
authors: Emsley
authors: Christophe
authors: C
authors: Copéret
authors: Ive
authors: I
authors: Hermans
keywords: DNP SENS; Mössbauer spectroscopy; active sites; solid-state NMR spectroscopy; zeolites