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dc.contributor.authorTurrina, Alessandro
dc.contributor.authorGarcia, Raquel
dc.contributor.authorCox, Paul
dc.contributor.authorCasci, John
dc.contributor.authorWright, Paul Anthony
dc.date.accessioned2017-06-17T23:33:40Z
dc.date.available2017-06-17T23:33:40Z
dc.date.issued2016-07-26
dc.identifier.citationTurrina , A , Garcia , R , Cox , P , Casci , J & Wright , P A 2016 , ' A retrosynthetic co-templating method for the preparation of silicoaluminophosphate molecular sieves ' Chemistry of Materials , vol. 28 , no. 14 , pp. 4998-5012 . https://doi.org/10.1021/acs.chemmater.6b01676en
dc.identifier.issn0897-4756
dc.identifier.otherPURE: 243606280
dc.identifier.otherPURE UUID: 2c3c06c2-b154-4d05-9446-1d97608b870d
dc.identifier.otherScopus: 84979873030
dc.identifier.otherWOS: 000380576700016
dc.identifier.urihttp://hdl.handle.net/10023/11015
dc.descriptionThis work has been supported by Johnson Matthey PLC, UK. Solid-state NMR spectra were obtained at the EPSRC UK National Solid-state NMR Service at Durham.en
dc.description.abstractA retrosynthetic method has been developed to design the synthesis of target zeotypes whose frameworks belong to the ABC-6 structural family and which contain gme cages. This permits the preparation of silicoaluminophosphate versions of AFX (SAPO-56), SFW (STA- 18) and GME (STA-19) topology types. The method makes simultaneous use of two organic structure directing agents (SDAs) to promote the formation of structural features such as cages or channels of the target framework. Computational modelling was used to identify SDAs for gme and other cages or channels in the target structures. The trimethylammonium cation was found to be the most favourable SDA for the gme cage while bisdiazabicyclooctane (DABCO) alkane cations and quaternary ammonium oligomers of DABCO with connecting polymethylene chain lengths of 4 to 8 methylene units acted as 1 templates for the additional cages or channels, respectively. The incorporation of each of the co-SDAs in the as-prepared materials was confirmed by chemical analysis, 13C MAS NMR and Rietveld refinement combined with computational modeling. Calcination of the SAPO- 56, STA-18 and some of the STA-19 materials gives microporous, fully tetrahedrally- coordinated framework solids with AFX, SFW and GME topologies: other STA-19 samples convert topotactically to SAPO-5. These results show that SAPOs in the ABC-6 family can be prepared via a targeted co-templating approach.
dc.format.extent15
dc.language.isoeng
dc.relation.ispartofChemistry of Materialsen
dc.rightsCopyright © 2016 American Chemical Society. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://dx.doi.org/10.1021/acs.chemmater.6b01676en
dc.rightsCopyright © 2016 American Chemical Society. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://dx.doi.org/10.1021/acs.chemmater.6b01676en
dc.subjectQD Chemistryen
dc.subjectDASen
dc.subject.lccQDen
dc.titleA retrosynthetic co-templating method for the preparation of silicoaluminophosphate molecular sievesen
dc.typeJournal articleen
dc.description.versionPostprinten
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews.School of Chemistryen
dc.contributor.institutionUniversity of St Andrews.EaSTCHEMen
dc.identifier.doihttps://doi.org/10.1021/acs.chemmater.6b01676
dc.description.statusPeer revieweden
dc.date.embargoedUntil2017-06-17


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