Synthesis and Structure of a Layered Fluoroaluminophosphate and Its Transformation to a Three-Dimensional Zeotype Framework.

Autor:	Guo P; Berzelii Center EXSELENT on Porous Materials, Department of Materials and Environmental Chemistry , Stockholm University , Stockholm SE-106 91 , Sweden.; National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China., Afeworki M, Cao G, Yun Y; Berzelii Center EXSELENT on Porous Materials, Department of Materials and Environmental Chemistry , Stockholm University , Stockholm SE-106 91 , Sweden., Sun J; Berzelii Center EXSELENT on Porous Materials, Department of Materials and Environmental Chemistry , Stockholm University , Stockholm SE-106 91 , Sweden., Su J; Berzelii Center EXSELENT on Porous Materials, Department of Materials and Environmental Chemistry , Stockholm University , Stockholm SE-106 91 , Sweden., Wan W; Berzelii Center EXSELENT on Porous Materials, Department of Materials and Environmental Chemistry , Stockholm University , Stockholm SE-106 91 , Sweden., Zou X; Berzelii Center EXSELENT on Porous Materials, Department of Materials and Environmental Chemistry , Stockholm University , Stockholm SE-106 91 , Sweden.
Jazyk:	angličtina
Zdroj:	Inorganic chemistry [Inorg Chem] 2018 Sep 17; Vol. 57 (18), pp. 11753-11760. Date of Electronic Publication: 2018 Aug 29.
DOI:	10.1021/acs.inorgchem.8b01890
Abstrakt:	Two-dimensional zeolitic materials have drawn increasing attention because of their structural diversity, high accessible surface areas, and potential as precursors to form novel three-dimensional (3D) structures. Here we report a new layered fluoroaluminophosphate, denoted as EMM-9 (ExxonMobil Material #9), synthesized in the same synthesis system as that for a previously reported 3D framework structure EMM-8 (framework-type code: SFO) using an F - medium and 4-(dimethylamino)pyridine (DMAP) as the organic structure-directing agent. The structure of EMM-9 was solved from rotation electron diffraction data and refined against synchrotron powder X-ray diffraction data. The fluoroaluminophosphate layer of EMM-9 is composed of sti composite building units. The DMAP cations are located between the layers. π-π interactions between the DMAP cations and hydrogen bonding between the DMAP cations and layers were identified. The layered EMM-9 structure is closely related to the 3D framework structure of EMM-8 and can be transformed to EMM-8 by calcination.
Databáze:	MEDLINE
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