Two Aluminophosphate Molecular Sieves Built from Pairs of Enantiomeric Structural Building Units.

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ID: 631
2018
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Ranked #80 of 192 articles by views in angewandte chemie (international ed in english)

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Abstract
Herein we report the synthesis and structures of two new small-pore aluminophosphate molecular sieves PST-13 and PST-14 with mutually connected 8-ring channels. The structure of PST-13, synthesized using diethylamine as an organic structure-directing agent, contains penta-coordinated framework Al atoms bridged by hydroxy groups and thus edge-sharing 3- and 5-rings. Upon calcination, PST-13 undergoes a transformation to PST-14 with loss of bridging hydroxy groups and occluded organic species. The structures of both materials consist "nonjointly" of pairs of previously undiscovered 1,5- and 1,6-open double 4-rings (d4rs) which are mirror images of each other. We also present a series of novel chemically feasible hypothetical structures built from 1-open d4r (sti) or 1,3-open d4r (nsc) units, as well as from these two enantiomeric structural building units.
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Authors Seo, Seungwan;Yang, Taimin;Shin, Jiho;Jo, Donghui;Zou, Xiaodong;Hong, Suk Bong;
Journal angewandte chemie (international ed in english)
Year 2018
DOI
10.1002/anie.201800791
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