Understanding Structure-Direction of Organic Molecules in Zeolite Synthesis through Mobility of Template Molecules

DOI

The mobility of zeolite structure directing agent (SDA) 1,2,3-triethylimidazolium (TEI) when still confined in zeolites MFI and STF after synthesis will be measured using quasielastic neutron scattering (QENS). The efficiency of such molecules to template zeolite frameworks is strongly dependent on the non-bonding interactions between the SDA and the zeolite, not studied in detail previously. The proposal aims is to measure the strength of TEI interactions with two very different frameworks it is employed to template. Its rotational mobility/chain flexibility in MFI (a network of intersected channels) and STF (more spherical shaped cages) will be studied. Recent NMR measurements and MD simulations show more conformational mobility of TEI in the STF framework. We aim therefore to complement these studies with QENS data quantifying thermal barriers to motion, and rotational information.

Identifier
DOI https://doi.org/10.5286/ISIS.E.84737799
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/84737799
Provenance
Creator Dr Stephanie Chapman; Dr Alexander Hawkins; Dr Alexander O'Malley; Professor Richard Catlow; Professor David Lennon; Dr LUIS GOMEZ-HORTIGUELA; Dr Ian Silverwood; Ms Andrea Zachariou
Publisher ISIS Neutron and Muon Source
Publication Year 2020
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Chemistry; Natural Sciences
Temporal Coverage Begin 2017-03-03T09:00:00Z
Temporal Coverage End 2017-03-06T00:00:00Z