Ontology highlight
ABSTRACT:
SUBMITTER: Schroeder C
PROVIDER: S-EPMC7317713 | biostudies-literature | 2020 Jun
REPOSITORIES: biostudies-literature
Schroeder Christian C Mück-Lichtenfeld Christian C Xu Le L Grosso-Giordano Nicolás A NA Okrut Alexander A Chen Cong-Yan CY Zones Stacey I SI Katz Alexander A Hansen Michael Ryan MR Koller Hubert H
Angewandte Chemie (International ed. in English) 20200423 27
Nests of three silanol groups are located on the internal pore surface of calcined zeolite SSZ-70. 2D <sup>1</sup> H double/triple-quantum single-quantum correlation NMR experiments enable a rigorous identification of these silanol triad nests. They reveal a close proximity to the structure directing agent (SDA), that is, N,N'-diisobutyl imidazolium cations, in the as-synthesized material, in which the defects are negatively charged (silanol dyad plus one charged SiO<sup>-</sup> siloxy group) fo ...[more]