Synthesis and Crystal Structure of Bi6.67(PO4)4O4Oxyphosphate: The Bi6 M 2+(PO4)4O4and Bi6.5 A +0.5(PO4)4O4Series
Identifieur interne : 000A27 ( Istex/Corpus ); précédent : 000A26; suivant : 000A28Synthesis and Crystal Structure of Bi6.67(PO4)4O4Oxyphosphate: The Bi6 M 2+(PO4)4O4and Bi6.5 A +0.5(PO4)4O4Series
Auteurs : Mustafa Ketatni ; Olivier Mentre ; Francis Abraham ; Fouzia Kzaiber ; Boucha B MernariSource :
- Journal of Solid State Chemistry [ 0022-4596 ] ; 1998.
Abstract
Single crystals of a new bismuth oxyphosphate were isolated and X-ray investigated, leading to the formula Bi6.67(PO4)4O4. Its crystal structure was refined using 2624 independent reflections in theP1space group,a=9.195(15) Å,b=7.552(5) Å,c=6.933(4) Å,α=112.2(1)°,β=93.9(1)°,γ=106.9(1)°,Z=1, with the finalR=0.049,Rw=0.060. It consists of infinite chains running parallel to theaaxis formed by the linkage of BiO5, BiO6, and BiO8polyhedra. These chains are connected by BiO8polyhedra, in which the central atom partially occupies the 1(a) inversion center. That produces (Bi6.67O20)20−∞slabs parallel to the (ac) plane. Finally, the cohesion between the layers is provided by the interconnection of PO3−4species. This phase was previously evidenced during the Bi2O3–BiPO4phase diagram study and behaves on cooling as an incongruently melting compound stable above 910°C. It was therefore assigned to the 2Bi2O3–7BiPO4composition very close to our corresponding 2Bi2O3–6BiPO4(Bi6.67P4O20) revised stoichiometry. Pure polycrystalline samples were room temperature stabilized by substitution of several cations for a substantial part of bismuth. This yielded the new series Bi6MP4O20(M=Sr2+, Cd2+, Ca2+, Pb2+) and Bi6.5A0.5P4O20(A=Li+, Na+, K+) presented in the aforementioned phase diagram study. The substitution involves only the bismuth atom labeled Bi(4) because of its peculiar role within the framework.
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DOI: 10.1006/jssc.1998.7841
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<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Synthesis and Crystal Structure of Bi6.67(PO4)4O4Oxyphosphate: The Bi6 M 2+(PO4)4O4and Bi6.5 A +0.5(PO4)4O4Series</title><author><name sortKey="Ketatni, Mustafa" sort="Ketatni, Mustafa" uniqKey="Ketatni M" first="Mustafa" last="Ketatni">Mustafa Ketatni</name><affiliation><mods:affiliation>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Mentre, Olivier" sort="Mentre, Olivier" uniqKey="Mentre O" first="Olivier" last="Mentre">Olivier Mentre</name><affiliation><mods:affiliation>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Abraham, Francis" sort="Abraham, Francis" uniqKey="Abraham F" first="Francis" last="Abraham">Francis Abraham</name><affiliation><mods:affiliation>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Kzaiber, Fouzia" sort="Kzaiber, Fouzia" uniqKey="Kzaiber F" first="Fouzia" last="Kzaiber">Fouzia Kzaiber</name><affiliation><mods:affiliation>Laboratoire de Physicochimie des Matériaux, Faculté des Sciences, Université Chouaı̈b Doukkali, 20, El Jadida, Morocco</mods:affiliation></affiliation></author><author><name sortKey="Mernari, Boucha B" sort="Mernari, Boucha B" uniqKey="Mernari B" first="Boucha B" last="Mernari">Boucha B Mernari</name><affiliation><mods:affiliation>Laboratoire de Physicochimie des Matériaux, Faculté des Sciences, Université Chouaı̈b Doukkali, 20, El Jadida, Morocco</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:8F3D6003E47DB5952800FAAEE558D1C9C74A77BA</idno><date when="1998" year="1998">1998</date><idno type="doi">10.1006/jssc.1998.7841</idno><idno type="url">https://api.istex.fr/document/8F3D6003E47DB5952800FAAEE558D1C9C74A77BA/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000A27</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000A27</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Synthesis and Crystal Structure of Bi6.67(PO4)4O4Oxyphosphate: The Bi6 M 2+(PO4)4O4and Bi6.5 A +0.5(PO4)4O4Series</title><author><name sortKey="Ketatni, Mustafa" sort="Ketatni, Mustafa" uniqKey="Ketatni M" first="Mustafa" last="Ketatni">Mustafa Ketatni</name><affiliation><mods:affiliation>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Mentre, Olivier" sort="Mentre, Olivier" uniqKey="Mentre O" first="Olivier" last="Mentre">Olivier Mentre</name><affiliation><mods:affiliation>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Abraham, Francis" sort="Abraham, Francis" uniqKey="Abraham F" first="Francis" last="Abraham">Francis Abraham</name><affiliation><mods:affiliation>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Kzaiber, Fouzia" sort="Kzaiber, Fouzia" uniqKey="Kzaiber F" first="Fouzia" last="Kzaiber">Fouzia Kzaiber</name><affiliation><mods:affiliation>Laboratoire de Physicochimie des Matériaux, Faculté des Sciences, Université Chouaı̈b Doukkali, 20, El Jadida, Morocco</mods:affiliation></affiliation></author><author><name sortKey="Mernari, Boucha B" sort="Mernari, Boucha B" uniqKey="Mernari B" first="Boucha B" last="Mernari">Boucha B Mernari</name><affiliation><mods:affiliation>Laboratoire de Physicochimie des Matériaux, Faculté des Sciences, Université Chouaı̈b Doukkali, 20, El Jadida, Morocco</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Solid State Chemistry</title><title level="j" type="abbrev">YJSSC</title><idno type="ISSN">0022-4596</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1998">1998</date><biblScope unit="volume">139</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="274">274</biblScope><biblScope unit="page" to="280">280</biblScope></imprint><idno type="ISSN">0022-4596</idno></series><idno type="istex">8F3D6003E47DB5952800FAAEE558D1C9C74A77BA</idno><idno type="DOI">10.1006/jssc.1998.7841</idno><idno type="PII">S0022-4596(98)97841-0</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0022-4596</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Single crystals of a new bismuth oxyphosphate were isolated and X-ray investigated, leading to the formula Bi6.67(PO4)4O4. Its crystal structure was refined using 2624 independent reflections in theP1space group,a=9.195(15) Å,b=7.552(5) Å,c=6.933(4) Å,α=112.2(1)°,β=93.9(1)°,γ=106.9(1)°,Z=1, with the finalR=0.049,Rw=0.060. It consists of infinite chains running parallel to theaaxis formed by the linkage of BiO5, BiO6, and BiO8polyhedra. These chains are connected by BiO8polyhedra, in which the central atom partially occupies the 1(a) inversion center. That produces (Bi6.67O20)20−∞slabs parallel to the (ac) plane. Finally, the cohesion between the layers is provided by the interconnection of PO3−4species. This phase was previously evidenced during the Bi2O3–BiPO4phase diagram study and behaves on cooling as an incongruently melting compound stable above 910°C. It was therefore assigned to the 2Bi2O3–7BiPO4composition very close to our corresponding 2Bi2O3–6BiPO4(Bi6.67P4O20) revised stoichiometry. Pure polycrystalline samples were room temperature stabilized by substitution of several cations for a substantial part of bismuth. This yielded the new series Bi6MP4O20(M=Sr2+, Cd2+, Ca2+, Pb2+) and Bi6.5A0.5P4O20(A=Li+, Na+, K+) presented in the aforementioned phase diagram study. The substitution involves only the bismuth atom labeled Bi(4) because of its peculiar role within the framework.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>Mustafa Ketatni</name><affiliations><json:string>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</json:string></affiliations></json:item><json:item><name>Olivier Mentre</name><affiliations><json:string>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</json:string></affiliations></json:item><json:item><name>Francis Abraham</name><affiliations><json:string>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</json:string></affiliations></json:item><json:item><name>Fouzia Kzaiber</name><affiliations><json:string>Laboratoire de Physicochimie des Matériaux, Faculté des Sciences, Université Chouaı̈b Doukkali, 20, El Jadida, Morocco</json:string></affiliations></json:item><json:item><name>Bouchaı̈b Mernari</name><affiliations><json:string>Laboratoire de Physicochimie des Matériaux, Faculté des Sciences, Université Chouaı̈b Doukkali, 20, El Jadida, Morocco</json:string></affiliations></json:item></author><language><json:string>eng</json:string></language><originalGenre><json:string>Full-length article</json:string></originalGenre><abstract>Single crystals of a new bismuth oxyphosphate were isolated and X-ray investigated, leading to the formula Bi6.67(PO4)4O4. Its crystal structure was refined using 2624 independent reflections in theP1space group,a=9.195(15) Å,b=7.552(5) Å,c=6.933(4) Å,α=112.2(1)°,β=93.9(1)°,γ=106.9(1)°,Z=1, with the finalR=0.049,Rw=0.060. It consists of infinite chains running parallel to theaaxis formed by the linkage of BiO5, BiO6, and BiO8polyhedra. These chains are connected by BiO8polyhedra, in which the central atom partially occupies the 1(a) inversion center. That produces (Bi6.67O20)20−∞slabs parallel to the (ac) plane. Finally, the cohesion between the layers is provided by the interconnection of PO3−4species. This phase was previously evidenced during the Bi2O3–BiPO4phase diagram study and behaves on cooling as an incongruently melting compound stable above 910°C. It was therefore assigned to the 2Bi2O3–7BiPO4composition very close to our corresponding 2Bi2O3–6BiPO4(Bi6.67P4O20) revised stoichiometry. Pure polycrystalline samples were room temperature stabilized by substitution of several cations for a substantial part of bismuth. This yielded the new series Bi6MP4O20(M=Sr2+, Cd2+, Ca2+, Pb2+) and Bi6.5A0.5P4O20(A=Li+, Na+, K+) presented in the aforementioned phase diagram study. The substitution involves only the bismuth atom labeled Bi(4) because of its peculiar role within the framework.</abstract><qualityIndicators><score>5.216</score><pdfVersion>1.1</pdfVersion><pdfPageSize>616 x 789 pts</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>0</keywordCount><abstractCharCount>1407</abstractCharCount><pdfWordCount>3020</pdfWordCount><pdfCharCount>20852</pdfCharCount><pdfPageCount>7</pdfPageCount><abstractWordCount>183</abstractWordCount></qualityIndicators><title>Synthesis and Crystal Structure of Bi6.67(PO4)4O4Oxyphosphate: The Bi6 M 2+(PO4)4O4and Bi6.5 A +0.5(PO4)4O4Series</title><pii><json:string>S0022-4596(98)97841-0</json:string></pii><genre><json:string>research-article</json:string></genre><host><volume>139</volume><pii><json:string>S0022-4596(00)X0047-3</json:string></pii><pages><last>280</last><first>274</first></pages><issn><json:string>0022-4596</json:string></issn><issue>2</issue><genre><json:string>journal</json:string></genre><language><json:string>unknown</json:string></language><title>Journal of Solid State Chemistry</title><publicationDate>1998</publicationDate></host><categories><wos><json:string>CHEMISTRY, INORGANIC & NUCLEAR</json:string><json:string>CHEMISTRY, PHYSICAL</json:string></wos></categories><publicationDate>1998</publicationDate><copyrightDate>1998</copyrightDate><doi><json:string>10.1006/jssc.1998.7841</json:string></doi><id>8F3D6003E47DB5952800FAAEE558D1C9C74A77BA</id><score>0.0730807</score><fulltext><json:item><original>true</original><mimetype>application/pdf</mimetype><extension>pdf</extension><uri>https://api.istex.fr/document/8F3D6003E47DB5952800FAAEE558D1C9C74A77BA/fulltext/pdf</uri></json:item><json:item><original>false</original><mimetype>application/zip</mimetype><extension>zip</extension><uri>https://api.istex.fr/document/8F3D6003E47DB5952800FAAEE558D1C9C74A77BA/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/8F3D6003E47DB5952800FAAEE558D1C9C74A77BA/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main" xml:lang="en">Synthesis and Crystal Structure of Bi6.67(PO4)4O4Oxyphosphate: The Bi6 M 2+(PO4)4O4and Bi6.5 A +0.5(PO4)4O4Series</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>ELSEVIER</publisher><availability><p>©1998 Academic Press</p></availability><date>1998</date></publicationStmt><notesStmt><note>B. Scorsati</note><note type="content">Section title: Regular Article</note></notesStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Synthesis and Crystal Structure of Bi6.67(PO4)4O4Oxyphosphate: The Bi6 M 2+(PO4)4O4and Bi6.5 A +0.5(PO4)4O4Series</title><author xml:id="author-1"><persName><forename type="first">Mustafa</forename><surname>Ketatni</surname></persName><note type="biography">Permanent address: Université Cadi Ayyad, Faculté des Sciences et Techniques, Department de Chimie et Environment, BP 523, Beni Mellal, Morocco.</note><affiliation>Permanent address: Université Cadi Ayyad, Faculté des Sciences et Techniques, Department de Chimie et Environment, BP 523, Beni Mellal, Morocco.</affiliation><affiliation>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</affiliation></author><author xml:id="author-2"><persName><forename type="first">Olivier</forename><surname>Mentre</surname></persName><affiliation>To whom correspondence should be addressed.</affiliation><affiliation>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</affiliation></author><author xml:id="author-3"><persName><forename type="first">Francis</forename><surname>Abraham</surname></persName><affiliation>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</affiliation></author><author xml:id="author-4"><persName><forename type="first">Fouzia</forename><surname>Kzaiber</surname></persName><note type="biography">Permanent address: Université Cadi Ayyad, Faculté des Sciences et Techniques, Department de Chimie et Environment, BP 523, Beni Mellal, Morocco.</note><affiliation>Permanent address: Université Cadi Ayyad, Faculté des Sciences et Techniques, Department de Chimie et Environment, BP 523, Beni Mellal, Morocco.</affiliation><affiliation>Laboratoire de Physicochimie des Matériaux, Faculté des Sciences, Université Chouaı̈b Doukkali, 20, El Jadida, Morocco</affiliation></author><author xml:id="author-5"><persName><forename type="first">Bouchaı̈b</forename><surname>Mernari</surname></persName><affiliation>Laboratoire de Physicochimie des Matériaux, Faculté des Sciences, Université Chouaı̈b Doukkali, 20, El Jadida, Morocco</affiliation></author></analytic><monogr><title level="j">Journal of Solid State Chemistry</title><title level="j" type="abbrev">YJSSC</title><idno type="pISSN">0022-4596</idno><idno type="PII">S0022-4596(00)X0047-3</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1998"></date><biblScope unit="volume">139</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="274">274</biblScope><biblScope unit="page" to="280">280</biblScope></imprint></monogr><idno type="istex">8F3D6003E47DB5952800FAAEE558D1C9C74A77BA</idno><idno type="DOI">10.1006/jssc.1998.7841</idno><idno type="PII">S0022-4596(98)97841-0</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1998</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Single crystals of a new bismuth oxyphosphate were isolated and X-ray investigated, leading to the formula Bi6.67(PO4)4O4. Its crystal structure was refined using 2624 independent reflections in theP1space group,a=9.195(15) Å,b=7.552(5) Å,c=6.933(4) Å,α=112.2(1)°,β=93.9(1)°,γ=106.9(1)°,Z=1, with the finalR=0.049,Rw=0.060. It consists of infinite chains running parallel to theaaxis formed by the linkage of BiO5, BiO6, and BiO8polyhedra. These chains are connected by BiO8polyhedra, in which the central atom partially occupies the 1(a) inversion center. That produces (Bi6.67O20)20−∞slabs parallel to the (ac) plane. Finally, the cohesion between the layers is provided by the interconnection of PO3−4species. This phase was previously evidenced during the Bi2O3–BiPO4phase diagram study and behaves on cooling as an incongruently melting compound stable above 910°C. It was therefore assigned to the 2Bi2O3–7BiPO4composition very close to our corresponding 2Bi2O3–6BiPO4(Bi6.67P4O20) revised stoichiometry. Pure polycrystalline samples were room temperature stabilized by substitution of several cations for a substantial part of bismuth. This yielded the new series Bi6MP4O20(M=Sr2+, Cd2+, Ca2+, Pb2+) and Bi6.5A0.5P4O20(A=Li+, Na+, K+) presented in the aforementioned phase diagram study. The substitution involves only the bismuth atom labeled Bi(4) because of its peculiar role within the framework.</p></abstract></profileDesc><revisionDesc><change when="1998-03-31">Modified</change><change when="1998">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><original>false</original><mimetype>text/plain</mimetype><extension>txt</extension><uri>https://api.istex.fr/document/8F3D6003E47DB5952800FAAEE558D1C9C74A77BA/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: tail"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="fla" xml:lang="en"><item-info><jid>YJSSC</jid><aid>97841</aid><ce:pii>S0022-4596(98)97841-0</ce:pii><ce:doi>10.1006/jssc.1998.7841</ce:doi><ce:copyright type="full-transfer" year="1998">Academic Press</ce:copyright></item-info><head><ce:article-footnote><ce:label>☆</ce:label><ce:note-para>B. Scorsati</ce:note-para></ce:article-footnote><ce:dochead><ce:textfn>Regular Article</ce:textfn></ce:dochead><ce:title>Synthesis and Crystal Structure of Bi<ce:inf>6.67</ce:inf>(PO<ce:inf>4</ce:inf>)<ce:inf>4</ce:inf>O<ce:inf>4</ce:inf>Oxyphosphate: The Bi<ce:inf>6</ce:inf><ce:italic>M</ce:italic><ce:sup>2+</ce:sup>(PO<ce:inf>4</ce:inf>)<ce:inf>4</ce:inf>O<ce:inf>4</ce:inf>and Bi<ce:inf>6.5</ce:inf><ce:italic>A</ce:italic><ce:sup>+</ce:sup><ce:inf>0.5</ce:inf>(PO<ce:inf>4</ce:inf>)<ce:inf>4</ce:inf>O<ce:inf>4</ce:inf>Series</ce:title><ce:author-group><ce:author><ce:given-name>Mustafa</ce:given-name><ce:surname>Ketatni</ce:surname><ce:cross-ref refid="SC987841A1"><ce:sup>a</ce:sup></ce:cross-ref><ce:cross-ref refid="SC987841FN1"><ce:sup>1</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Olivier</ce:given-name><ce:surname>Mentre</ce:surname><ce:cross-ref refid="SC987841A1"><ce:sup>a</ce:sup></ce:cross-ref><ce:cross-ref refid="SC987841FN2"><ce:sup>2</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Francis</ce:given-name><ce:surname>Abraham</ce:surname><ce:cross-ref refid="SC987841A1"><ce:sup>a</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Fouzia</ce:given-name><ce:surname>Kzaiber</ce:surname><ce:cross-ref refid="SC987841A2"><ce:sup>b</ce:sup></ce:cross-ref><ce:cross-ref refid="SC987841FN1">1</ce:cross-ref></ce:author><ce:author><ce:given-name>Bouchaı̈b</ce:given-name><ce:surname>Mernari</ce:surname><ce:cross-ref refid="SC987841A2"><ce:sup>b</ce:sup></ce:cross-ref></ce:author><ce:affiliation id="SC987841A1"><ce:label>a</ce:label><ce:textfn>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</ce:textfn></ce:affiliation><ce:affiliation id="SC987841A2"><ce:label>b</ce:label><ce:textfn>Laboratoire de Physicochimie des Matériaux, Faculté des Sciences, Université Chouaı̈b Doukkali, 20, El Jadida, Morocco</ce:textfn></ce:affiliation><ce:footnote id="SC987841FN1"><ce:label>1</ce:label><ce:note-para>Permanent address: Université Cadi Ayyad, Faculté des Sciences et Techniques, Department de Chimie et Environment, BP 523, Beni Mellal, Morocco.</ce:note-para></ce:footnote><ce:footnote id="SC987841FN2"><ce:label>2</ce:label><ce:note-para>To whom correspondence should be addressed.</ce:note-para></ce:footnote></ce:author-group><ce:date-received day="18" month="12" year="1997"></ce:date-received><ce:date-revised day="31" month="3" year="1998"></ce:date-revised><ce:date-accepted day="5" month="4" year="1998"></ce:date-accepted><ce:abstract><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para>Single crystals of a new bismuth oxyphosphate were isolated and X-ray investigated, leading to the formula Bi<ce:inf>6.67</ce:inf>(PO<ce:inf>4</ce:inf>)<ce:inf>4</ce:inf>O<ce:inf>4</ce:inf>. Its crystal structure was refined using 2624 independent reflections in the<ce:italic>P</ce:italic><math altimg="si1.gif"><rm><ovl type="bar">1</ovl></rm></math>space group,<ce:italic>a</ce:italic>=9.195(15) Å,<ce:italic>b</ce:italic>=7.552(5) Å,<ce:italic>c</ce:italic>=6.933(4) Å,<ce:italic>α</ce:italic>=112.2(1)°,<ce:italic>β</ce:italic>=93.9(1)°,<ce:italic>γ</ce:italic>=106.9(1)°,<ce:italic>Z</ce:italic>=1, with the final<ce:italic>R</ce:italic>=0.049,<ce:italic>R</ce:italic><ce:inf>w</ce:inf>=0.060. It consists of infinite chains running parallel to the<ce:italic>a</ce:italic>axis formed by the linkage of BiO<ce:inf>5</ce:inf>, BiO<ce:inf>6</ce:inf>, and BiO<ce:inf>8</ce:inf>polyhedra. These chains are connected by BiO<ce:inf>8</ce:inf>polyhedra, in which the central atom partially occupies the 1(<ce:italic>a</ce:italic>) inversion center. That produces (Bi<ce:inf>6.67</ce:inf>O<ce:inf>20</ce:inf>)<ce:sup>20−</ce:sup><ce:inf>∞</ce:inf>slabs parallel to the (<ce:italic>ac</ce:italic>) plane. Finally, the cohesion between the layers is provided by the interconnection of PO<ce:sup>3−</ce:sup><ce:inf>4</ce:inf>species. This phase was previously evidenced during the Bi<ce:inf>2</ce:inf>O<ce:inf>3</ce:inf>–BiPO<ce:inf>4</ce:inf>phase diagram study and behaves on cooling as an incongruently melting compound stable above 910°C. It was therefore assigned to the 2Bi<ce:inf>2</ce:inf>O<ce:inf>3</ce:inf>–7BiPO<ce:inf>4</ce:inf>composition very close to our corresponding 2Bi<ce:inf>2</ce:inf>O<ce:inf>3</ce:inf>–6BiPO<ce:inf>4</ce:inf>(Bi<ce:inf>6.67</ce:inf>P<ce:inf>4</ce:inf>O<ce:inf>20</ce:inf>) revised stoichiometry. Pure polycrystalline samples were room temperature stabilized by substitution of several cations for a substantial part of bismuth. This yielded the new series Bi<ce:inf>6</ce:inf><ce:italic>M</ce:italic>P<ce:inf>4</ce:inf>O<ce:inf>20</ce:inf>(<ce:italic>M</ce:italic>=Sr<ce:sup>2+</ce:sup>, Cd<ce:sup>2+</ce:sup>, Ca<ce:sup>2+</ce:sup>, Pb<ce:sup>2+</ce:sup>) and Bi<ce:inf>6.5</ce:inf><ce:italic>A</ce:italic><ce:inf>0.5</ce:inf>P<ce:inf>4</ce:inf>O<ce:inf>20</ce:inf>(<ce:italic>A</ce:italic>=Li<ce:sup>+</ce:sup>, Na<ce:sup>+</ce:sup>, K<ce:sup>+</ce:sup>) presented in the aforementioned phase diagram study. The substitution involves only the bismuth atom labeled Bi(4) because of its peculiar role within the framework.</ce:simple-para></ce:abstract-sec></ce:abstract></head></converted-article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Synthesis and Crystal Structure of Bi6.67(PO4)4O4Oxyphosphate: The Bi6 M 2+(PO4)4O4and Bi6.5 A +0.5(PO4)4O4Series</title></titleInfo><titleInfo type="alternative" lang="en" contentType="CDATA"><title>Synthesis and Crystal Structure of Bi</title></titleInfo><name type="personal"><namePart type="given">Mustafa</namePart><namePart type="family">Ketatni</namePart><affiliation>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</affiliation><description>Permanent address: Université Cadi Ayyad, Faculté des Sciences et Techniques, Department de Chimie et Environment, BP 523, Beni Mellal, Morocco.</description><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Olivier</namePart><namePart type="family">Mentre</namePart><affiliation>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</affiliation><description>To whom correspondence should be addressed.</description><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Francis</namePart><namePart type="family">Abraham</namePart><affiliation>Laboratoire de Cristallochimie et Physicochimie du Solide URA, CNRS 452, ENSCL, Université des Sciences et Technologies de Lille, 108, 59652, Villeneuve d'Ascq Cedex, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Fouzia</namePart><namePart type="family">Kzaiber</namePart><affiliation>Laboratoire de Physicochimie des Matériaux, Faculté des Sciences, Université Chouaı̈b Doukkali, 20, El Jadida, Morocco</affiliation><description>Permanent address: Université Cadi Ayyad, Faculté des Sciences et Techniques, Department de Chimie et Environment, BP 523, Beni Mellal, Morocco.</description><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Bouchaı̈b</namePart><namePart type="family">Mernari</namePart><affiliation>Laboratoire de Physicochimie des Matériaux, Faculté des Sciences, Université Chouaı̈b Doukkali, 20, El Jadida, Morocco</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article"></genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1998</dateIssued><dateModified encoding="w3cdtf">1998-03-31</dateModified><copyrightDate encoding="w3cdtf">1998</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">Single crystals of a new bismuth oxyphosphate were isolated and X-ray investigated, leading to the formula Bi6.67(PO4)4O4. Its crystal structure was refined using 2624 independent reflections in theP1space group,a=9.195(15) Å,b=7.552(5) Å,c=6.933(4) Å,α=112.2(1)°,β=93.9(1)°,γ=106.9(1)°,Z=1, with the finalR=0.049,Rw=0.060. It consists of infinite chains running parallel to theaaxis formed by the linkage of BiO5, BiO6, and BiO8polyhedra. These chains are connected by BiO8polyhedra, in which the central atom partially occupies the 1(a) inversion center. That produces (Bi6.67O20)20−∞slabs parallel to the (ac) plane. Finally, the cohesion between the layers is provided by the interconnection of PO3−4species. This phase was previously evidenced during the Bi2O3–BiPO4phase diagram study and behaves on cooling as an incongruently melting compound stable above 910°C. It was therefore assigned to the 2Bi2O3–7BiPO4composition very close to our corresponding 2Bi2O3–6BiPO4(Bi6.67P4O20) revised stoichiometry. Pure polycrystalline samples were room temperature stabilized by substitution of several cations for a substantial part of bismuth. This yielded the new series Bi6MP4O20(M=Sr2+, Cd2+, Ca2+, Pb2+) and Bi6.5A0.5P4O20(A=Li+, Na+, K+) presented in the aforementioned phase diagram study. The substitution involves only the bismuth atom labeled Bi(4) because of its peculiar role within the framework.</abstract><note>B. Scorsati</note><note type="content">Section title: Regular Article</note><relatedItem type="host"><titleInfo><title>Journal of Solid State Chemistry</title></titleInfo><titleInfo type="abbreviated"><title>YJSSC</title></titleInfo><genre type="journal">journal</genre><originInfo><dateIssued encoding="w3cdtf">199809</dateIssued></originInfo><identifier type="ISSN">0022-4596</identifier><identifier type="PII">S0022-4596(00)X0047-3</identifier><part><date>199809</date><detail type="volume"><number>139</number><caption>vol.</caption></detail><detail type="issue"><number>2</number><caption>no.</caption></detail><extent unit="issue pages"><start>213</start><end>429</end></extent><extent unit="pages"><start>274</start><end>280</end></extent></part></relatedItem><identifier type="istex">8F3D6003E47DB5952800FAAEE558D1C9C74A77BA</identifier><identifier type="DOI">10.1006/jssc.1998.7841</identifier><identifier type="PII">S0022-4596(98)97841-0</identifier><accessCondition type="use and reproduction" contentType="copyright">©1998 Academic Press</accessCondition><recordInfo><recordContentSource>ELSEVIER</recordContentSource><recordOrigin>Academic Press, ©1998</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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