Further Investigations of Racemic and Chiral Molecular Sieves of the STW Topology
dc.contributor.author
Kang, Jong H.
dc.contributor.author
McCusker, Lynne B.
dc.contributor.author
Deem, Michael W.
dc.contributor.author
Baerlocher, Christian
dc.contributor.author
Davis, Mark E.
dc.date.accessioned
2021-04-29T14:50:46Z
dc.date.available
2021-04-29T11:14:51Z
dc.date.available
2021-04-29T14:50:46Z
dc.date.issued
2021-03-09
dc.identifier.issn
0897-4756
dc.identifier.other
10.1021/acs.chemmater.0c04573
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/481323
dc.description.abstract
Large single crystals of pure-silica STW-type molecular sieves are prepared using 1,2,3,4,5-pentamethylimidazolium (12345PMI) and 2-ethyl-1,3,4-trimethylimidazolium (2E134TMI) as organic structure-directing agents (OSDAs) and α-amino acid additives. The effects of the amount and type of amino acid on the crystallization of pure-silica STW materials are investigated. Room-temperature single-crystal X-ray diffractometry shows that 12345PMI better fits the STW cage than 2E134TMI and is fully consistent with computed simulations. The synthesis of an enantioenriched R-STW-type molecular sieve having a Si/Ge ratio of 2.2 is achieved using a chiral, dicationic OSDA that contains two stereocenters. The conformation of the chiral OSDA in the chiral framework has been obtained from a Rietveld refinement using synchrotron powder diffraction data and is the first structure refinement of an enantioenriched, inorganic molecular sieve prepared from a pure, asymmetric OSDA.
en_US
dc.language.iso
en
en_US
dc.publisher
American Chemical Society
en_US
dc.title
Further Investigations of Racemic and Chiral Molecular Sieves of the STW Topology
en_US
dc.type
Journal Article
dc.date.published
2021-02-24
ethz.journal.title
Chemistry of Materials
ethz.journal.volume
33
en_US
ethz.journal.issue
5
en_US
ethz.journal.abbreviated
Chem. Mater.
ethz.pages.start
1752
en_US
ethz.pages.end
1759
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Washington, DC
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2021-04-29T11:14:57Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-04-29T14:50:56Z
ethz.rosetta.lastUpdated
2022-03-29T06:56:38Z
ethz.rosetta.versionExported
true
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Journal Article [130588]