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Crystal structure, magnetic susceptibility and Mössbauer spectroscopy of the mixed-valence iron phosphate Na1/2Cu4/3Fe2(PO4)3

hal.structure.identifierLaboratoire de Chimie Structurale des Matériaux, Département de Chimie
dc.contributor.authorHIDOURI, Mourad
hal.structure.identifierLaboratoire de Chimie Structurale des Matériaux, Département de Chimie
dc.contributor.authorLAJMI, Besma
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorWATTIAUX, Alain
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFOURNÈS, Léopold
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDARRIET, Jacques
hal.structure.identifierLaboratoire de Chimie Structurale des Matériaux, Département de Chimie
dc.contributor.authorAMARA, Mongi B.
dc.date.issued2006
dc.identifier.issn0022-4596
dc.description.abstractEnSingle crystals of a new mixed-valent iron phosphate Na1/2Cu4/3Fe2(PO4)3 have been synthesized by a flux method and structurally characterized from X-ray diffraction data: Pl; a= 6.2882(1)A; b=8.0459(1)A; c=9.3255(1)A; alpha=105.881(1)°; beta=107.202(1)°; gamma=101.467(1)°; Z = 2 ; R1 = 0.03; wR2=0.093. The three-dimensional structure was found to be closely related to that of the well known Howardevansite structural type. It results from infinite chains of CuO5 and FeO6 polyhedra, joined together by (Cu,square, open)O6 octahedra and PO4 tetrahedra by corner-sharing. The large cavities in framework are occupied by Na+ ions. The magnetic susceptibility study revealed an antiferromagnetic behavior with Neel temperature of approximately 40 K. The Mössbauer spectroscopy confirmed the presence of iron in both +2 and +3 oxidation states.
dc.language.isoen
dc.publisherElsevier
dc.subject.enPhosphate
dc.subject.enX-ray diffraction
dc.subject.enHowardevansite
dc.subject.enMagnetic measurements
dc.subject.enMössbauer spectroscopy
dc.title.enCrystal structure, magnetic susceptibility and Mössbauer spectroscopy of the mixed-valence iron phosphate Na1/2Cu4/3Fe2(PO4)3
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jssc.2006.03.025
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Solid State Chemistry
bordeaux.page1808-1813
bordeaux.volume179
bordeaux.issue6
bordeaux.peerReviewedoui
hal.identifierhal-00080362
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00080362v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Solid%20State%20Chemistry&rft.date=2006&rft.volume=179&rft.issue=6&rft.spage=1808-1813&rft.epage=1808-1813&rft.eissn=0022-4596&rft.issn=0022-4596&rft.au=HIDOURI,%20Mourad&LAJMI,%20Besma&WATTIAUX,%20Alain&FOURN%C3%88S,%20L%C3%A9opold&DARRIET,%20Jacques&rft.genre=article


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