Multidimensional structural variation in the cyanotrichite family of merotypes: camerolaite-3b-F\bar 1.
Identifieur interne : 004F87 ( Ncbi/Checkpoint ); précédent : 004F86; suivant : 004F88Multidimensional structural variation in the cyanotrichite family of merotypes: camerolaite-3b-F\bar 1.
Auteurs : Stuart J. Mills [Australie] ; Andrew G. Christy [Australie] ; Georges Favreau [France] ; Valérie Galea-Clolus [France]Source :
- Acta crystallographica Section B, Structural science, crystal engineering and materials [ 2052-5206 ] ; 2017.
Abstract
A new superstructure of the mineral camerolaite, Cu6Al3(OH)18(H2O)2[Sb(OH)6](SO4), has been refined in space group P\bar 1 with unit-cell parameters aP = 7.7660 (16), bP = 8.759 (4), cP = 11.306 (2) Å, αP = 108.67 (4), βP = 83.41 (3), γP = 126.64 (2)°, V = 581.6 (3) Å(3) and Z = 1, with R1 = 0.0951 (all data). This is the first refined example of a cyanotrichite-group mineral in which long-range order of interlayer anions produces a superstructure along b, although diffuse scattering has previously been reported that corresponds to short-range order. Though the structure shares with other members of the cyanotrichite group a structural unit in which ribbons of edge-sharing Cu and Al octahedra form layers || (001), the superstructure arises from regular alternation of [SO4] and [Sb(OH)6] polyhedra along rods that lie between the layers, and phase coupling between rods that maximizes the distance between [SO4] groups of adjacent rods along a and c directions. This arrangement suggests an alternative nearly orthogonal choice of unit cell in F\bar 1 with parameters aF = 12.473 (26), bF = 8.759 (4), cF = 21.476 (7) Å, αF = 85.94 (4), βF = 95.91 (5), γF = 92.34 (9)°, which is recommended for comparing this structural variety of camerolaite with other members of the group.
DOI: 10.1107/S2052520617010769
PubMed: 28981001
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Christy</name><affiliation wicri:level="1"><nlm:affiliation>Queensland Museum, 122 Gerler Road, Hendra, Queensland 4011, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Queensland Museum, 122 Gerler Road, Hendra, Queensland 4011</wicri:regionArea><wicri:noRegion>Queensland 4011</wicri:noRegion></affiliation></author><author><name sortKey="Favreau, Georges" sort="Favreau, Georges" uniqKey="Favreau G" first="Georges" last="Favreau">Georges Favreau</name><affiliation wicri:level="1"><nlm:affiliation>421 Avenue Jean Monnet, Aix-en-Provence, 13090, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>421 Avenue Jean Monnet, Aix-en-Provence, 13090</wicri:regionArea><wicri:noRegion>13090</wicri:noRegion><wicri:noRegion>13090</wicri:noRegion></affiliation></author><author><name sortKey="Galea Clolus, Valerie" sort="Galea Clolus, Valerie" uniqKey="Galea Clolus V" first="Valérie" last="Galea-Clolus">Valérie Galea-Clolus</name><affiliation wicri:level="1"><nlm:affiliation>10 rue Combe Noire, Solliès-Toucas, 83210, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>10 rue Combe Noire, Solliès-Toucas, 83210</wicri:regionArea><wicri:noRegion>83210</wicri:noRegion><wicri:noRegion>83210</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2017">2017</date><idno type="RBID">pubmed:28981001</idno><idno type="pmid">28981001</idno><idno type="doi">10.1107/S2052520617010769</idno><idno type="wicri:Area/PubMed/Corpus">000273</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000273</idno><idno type="wicri:Area/PubMed/Curation">000271</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000271</idno><idno type="wicri:Area/PubMed/Checkpoint">000271</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">000271</idno><idno type="wicri:Area/Ncbi/Merge">004F87</idno><idno type="wicri:Area/Ncbi/Curation">004F87</idno><idno type="wicri:Area/Ncbi/Checkpoint">004F87</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Multidimensional structural variation in the cyanotrichite family of merotypes: camerolaite-3b-F\bar 1.</title><author><name sortKey="Mills, Stuart J" sort="Mills, Stuart J" uniqKey="Mills S" first="Stuart J" last="Mills">Stuart J. Mills</name><affiliation wicri:level="1"><nlm:affiliation>Geosciences, Museums Victoria, GPO Box 666, Melbourne, Victoria 3001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Geosciences, Museums Victoria, GPO Box 666, Melbourne, Victoria 3001</wicri:regionArea><wicri:noRegion>Victoria 3001</wicri:noRegion></affiliation></author><author><name sortKey="Christy, Andrew G" sort="Christy, Andrew G" uniqKey="Christy A" first="Andrew G" last="Christy">Andrew G. Christy</name><affiliation wicri:level="1"><nlm:affiliation>Queensland Museum, 122 Gerler Road, Hendra, Queensland 4011, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Queensland Museum, 122 Gerler Road, Hendra, Queensland 4011</wicri:regionArea><wicri:noRegion>Queensland 4011</wicri:noRegion></affiliation></author><author><name sortKey="Favreau, Georges" sort="Favreau, Georges" uniqKey="Favreau G" first="Georges" last="Favreau">Georges Favreau</name><affiliation wicri:level="1"><nlm:affiliation>421 Avenue Jean Monnet, Aix-en-Provence, 13090, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>421 Avenue Jean Monnet, Aix-en-Provence, 13090</wicri:regionArea><wicri:noRegion>13090</wicri:noRegion><wicri:noRegion>13090</wicri:noRegion></affiliation></author><author><name sortKey="Galea Clolus, Valerie" sort="Galea Clolus, Valerie" uniqKey="Galea Clolus V" first="Valérie" last="Galea-Clolus">Valérie Galea-Clolus</name><affiliation wicri:level="1"><nlm:affiliation>10 rue Combe Noire, Solliès-Toucas, 83210, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>10 rue Combe Noire, Solliès-Toucas, 83210</wicri:regionArea><wicri:noRegion>83210</wicri:noRegion><wicri:noRegion>83210</wicri:noRegion></affiliation></author></analytic><series><title level="j">Acta crystallographica Section B, Structural science, crystal engineering and materials</title><idno type="eISSN">2052-5206</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A new superstructure of the mineral camerolaite, Cu6Al3(OH)18(H2O)2[Sb(OH)6](SO4), has been refined in space group P\bar 1 with unit-cell parameters aP = 7.7660 (16), bP = 8.759 (4), cP = 11.306 (2) Å, αP = 108.67 (4), βP = 83.41 (3), γP = 126.64 (2)°, V = 581.6 (3) Å(3) and Z = 1, with R1 = 0.0951 (all data). This is the first refined example of a cyanotrichite-group mineral in which long-range order of interlayer anions produces a superstructure along b, although diffuse scattering has previously been reported that corresponds to short-range order. Though the structure shares with other members of the cyanotrichite group a structural unit in which ribbons of edge-sharing Cu and Al octahedra form layers || (001), the superstructure arises from regular alternation of [SO4] and [Sb(OH)6] polyhedra along rods that lie between the layers, and phase coupling between rods that maximizes the distance between [SO4] groups of adjacent rods along a and c directions. This arrangement suggests an alternative nearly orthogonal choice of unit cell in F\bar 1 with parameters aF = 12.473 (26), bF = 8.759 (4), cF = 21.476 (7) Å, αF = 85.94 (4), βF = 95.91 (5), γF = 92.34 (9)°, which is recommended for comparing this structural variety of camerolaite with other members of the group.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country></list><tree><country name="Australie"><noRegion><name sortKey="Mills, Stuart J" sort="Mills, Stuart J" uniqKey="Mills S" first="Stuart J" last="Mills">Stuart J. Mills</name></noRegion><name sortKey="Christy, Andrew G" sort="Christy, Andrew G" uniqKey="Christy A" first="Andrew G" last="Christy">Andrew G. Christy</name></country><country name="France"><noRegion><name sortKey="Favreau, Georges" sort="Favreau, Georges" uniqKey="Favreau G" first="Georges" last="Favreau">Georges Favreau</name></noRegion><name sortKey="Galea Clolus, Valerie" sort="Galea Clolus, Valerie" uniqKey="Galea Clolus V" first="Valérie" last="Galea-Clolus">Valérie Galea-Clolus</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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