Synthesis and Structure Determination of a New Microporous Zeolite with Large Cavities Connected by Small Pores.
A new small-pore germanosilicate zeolite, named as ITQ-49, has been synthesized using a new ditetraalkylphosphonium dication as an organic structure-directing agent, and its structure has been solved by direct methods applied to the powder X-ray diffraction pattern of the calcined solid. This new ze...
| Publicado en: | Journal of the American Chemical Society Vol. 134; no. 32; pp. 13232 - 13236 |
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| Autores principales: | , , , |
| Formato: | Artículo |
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American Chemical Society
8/15/2012
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=79335890&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 79335890 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 8/15/2012 vid: 134 iid: 32 pid: 997 pub: American Chemical Society artinfo: ui: 79335890 10.1021/ja306013k ppf: 13232 ppct: 4 formats: tig: atl: Synthesis and Structure Determination of a New Microporous Zeolite with Large Cavities Connected by Small Pores. aug: au: Hernández-Rodríguez, Manuel Jordá, Jose L. Rey, Fernando Corma, Avelino affil: Instituto de Tecnología Química (UPV-CSIC), Universidad Politécnica de Valencia - Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, 46022 Valencia, Spain su: Zeolites Chemical synthesis Porous materials synthesis Molecular structure X-ray diffraction measurement Adsorption (Chemistry) Surface analysis sug: subj: Zeolites Chemical synthesis Porous materials synthesis Molecular structure X-ray diffraction measurement Adsorption (Chemistry) Surface analysis ab: A new small-pore germanosilicate zeolite, named as ITQ-49, has been synthesized using a new ditetraalkylphosphonium dication as an organic structure-directing agent, and its structure has been solved by direct methods applied to the powder X-ray diffraction pattern of the calcined solid. This new zeolite crystallizes in the space group Immm with cell parameters a = 19.6007(8) Å, b = 18.3274(7) Å, and c = 16.5335(6) Å. The pore topology of ITQ-49 consists of large, nonspherical cavities that are connected to each other through small eight-membered-ring windows, resulting in a unidirectional small-pore zeolite that has a relatively large adsorption capacity. Also, ITQ-49 contains double four-membered-ring units where Ge is preferentially located, and fluoride anions are placed inside these units. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2012 holdings: @attributes: islocal: N |
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