Synthesis, crystal structure and vibrational spectroscopy studies of the lacunar apatite NaPb2Ca2(PO4)3

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dc.contributor.authorChari, Aen_AU
dc.contributor.authorOrayech, Ben_AU
dc.contributor.authorFaik, Aen_AU
dc.contributor.authorIgartua, JMen_AU
dc.contributor.authorEl Bouari, Aen_AU
dc.date.accessioned2021-09-08T05:08:46Zen_AU
dc.date.available2021-09-08T05:08:46Zen_AU
dc.date.issued2015-05-21en_AU
dc.date.statistics2021-09-06en_AU
dc.description.abstractPowder NaPb2Ca2(PO4)3 lacunar apatite was synthesized by the solid-state reaction method, and its crystal structure was investigated by Rietveld analysis. NaPb2Ca2(PO4)3 material is hexagonal apatite at room temperature, adopting the space group P63/m (ITA No. 176), a=b=9.6075(2)Å, c=7.0167(1)Å, Z=2. Rietveld refinements showed that the site 4f is shared by three cations Ca, Pb and Na; while, the 6h is occupied by the Pb and Na cations. The structure can be described as built up from the PO4tetrahedra and the sixfold coordination cavities, which delimit hexagonal tunnels along the c-axis direction. These tunnels are linked by the cations occupying the 4f sites. Raman spectroscopy analysis has been carried out. The observed frequencies were assigned and discussed on the basis of unit-cell group analysis and by comparison to other apatite-type materials.en_AU
dc.identifier.citationChari, A., Orayech, B., Faik, A., Igartua, J. M., & El Bouari, A. (2015). Synthesis, crystal structure and vibrational spectroscopy studies of the lacunar apatite NaPb2Ca2(PO4)3. Presented at Workshop Matériaux & Energétique, 21 mai 2015, Casablanca Maroc. In Journal of Materials and Environmetal Science 6(12), 3388-3394.en_AU
dc.identifier.conferencenameWorkshop Matériaux & Energétiqueen_AU
dc.identifier.conferenceplaceCasablanca Marocen_AU
dc.identifier.conferencestartdate21 May 2015en_AU
dc.identifier.issn2028-2508en_AU
dc.identifier.issue12en_AU
dc.identifier.journaltitleJournal of Materials and Environmetal Scienceen_AU
dc.identifier.pagination3388-3394en_AU
dc.identifier.urihttps://www.jmaterenvironsci.com/Journal/vol6-12.htmlen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11635en_AU
dc.identifier.volume6en_AU
dc.language.isoenen_AU
dc.publisherUniversity of Mohammed Premier Oujda in partnership with the Association CEMADESen_AU
dc.subjectCrystal structureen_AU
dc.subjectApatitesen_AU
dc.subjectRaman spectroscopyen_AU
dc.subjectCationsen_AU
dc.subjectCalciumen_AU
dc.subjectLeaden_AU
dc.subjectSodiumen_AU
dc.titleSynthesis, crystal structure and vibrational spectroscopy studies of the lacunar apatite NaPb2Ca2(PO4)3en_AU
dc.typeConference Abstracten_AU
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