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dc.contributor.authorMaple, Martin J.
dc.contributor.authorWilliams, Craig D.
dc.date.accessioned2008-06-23T15:05:20Z
dc.date.available2008-06-23T15:05:20Z
dc.date.issued2007
dc.identifier.citationDalton Transactions, 2007(37): 4175-4181
dc.identifier.issn14779226
dc.identifier.issn14779234
dc.identifier.doi10.1039/b706206k
dc.identifier.urihttp://hdl.handle.net/2436/30336
dc.description.abstractNew routes to the preparation of two families of small pore microporous solids are described. Flexible diquaternary alkyl ammonium cations (C4H8)CH3N+(CH2)nN+CH3(C2H8), n = 3–5, have been found to act as structure directing agents in the synthesis of aluminophosphate-based materials of the ABC-6 group. The templates exhibit considerable selectivity in crystallising phases of the ERI or AFX-type (MeAPO-17 or MeAPO-56, respectively) from a wide variety of metalloaluminophosphate gels (Me = Mg2+, Co2+ or Si4+). For example, from gels containing Mg/P = 0–0.25, 1,4-bis(N-methylpyrrolidinium)butane cations gave MgAPO-17, and 1,5-bis(N-methylpyrrolidinium)pentane cations gave MgAPO-56. Notably, materials could be prepared with levels of metal-substitution tailored to a high degree and distributed non-randomly within the framework. As-prepared solids have been characterised by powder XRD, multinuclear solid state NMR, FT-IR, SEM, and thermal and elemental analysis.
dc.language.isoen
dc.publisherRSC Publishing
dc.relation.urlhttp://www.rsc.org/publishing/journals/DT/article.asp?doi=b706206k
dc.subjectGeochemistry
dc.subjectZeotype materials
dc.subjectSynthesis
dc.subjectCations
dc.titleSynthesis and characterisation of aluminophosphate-based zeotype materials prepared with α,ω-bis(N-methylpyrrolidinium) alkane cations as structure directing agents.
dc.typeJournal article
dc.identifier.journalDalton Transactions
html.description.abstractNew routes to the preparation of two families of small pore microporous solids are described. Flexible diquaternary alkyl ammonium cations (C4H8)CH3N+(CH2)nN+CH3(C2H8), n = 3–5, have been found to act as structure directing agents in the synthesis of aluminophosphate-based materials of the ABC-6 group. The templates exhibit considerable selectivity in crystallising phases of the ERI or AFX-type (MeAPO-17 or MeAPO-56, respectively) from a wide variety of metalloaluminophosphate gels (Me = Mg2+, Co2+ or Si4+). For example, from gels containing Mg/P = 0–0.25, 1,4-bis(N-methylpyrrolidinium)butane cations gave MgAPO-17, and 1,5-bis(N-methylpyrrolidinium)pentane cations gave MgAPO-56. Notably, materials could be prepared with levels of metal-substitution tailored to a high degree and distributed non-randomly within the framework. As-prepared solids have been characterised by powder XRD, multinuclear solid state NMR, FT-IR, SEM, and thermal and elemental analysis.


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