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A cubic calcium oxynitrido-silicate, Ca2.89Si2N1.76O4.24
Linnaeus University, Faculty of Science and Engineering, School of Engineering. (Glass group)
Stockholm University.
Stockholm University.
Stockholm University.
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2011 (English)In: Acta Crystallographica Section E: Structure Reports Online, ISSN 1600-5368, E-ISSN 1600-5368, Vol. 67, i66Article in journal (Refereed) Published
Abstract [en]

The title compound, tricalcium oxynitride silicate, withcomposition Ca3-xSi2N2-2xO4+2x (x ’ 0.12), is a perovskiterelatedcalcium oxynitrido silicate containing isolated oxynitridosilicate 12-rings. The N atoms are statistically disorderedwith O atoms (occupancy ratio N:O = 0.88:0.12) and occupythe bridging positions in the 12 ring oxynitrido silicate anion,while the remaining O atoms are located at the terminalpositions of the Si(O,N)4 tetrahedra. The majority of the Ca2+cations fill the channels along [100] in the packing of the 12-ring anions. The rest of these cations are located at severalpositions, with partial occupancy, in channels along the bodydiagonals.

Place, publisher, year, edition, pages
2011. Vol. 67, i66
Keyword [en]
single-crystal X-ray study, T = 293 K, mean (Si–O) = 0.002 A°, disorder in main residue, R factor = 0.032, wR factor = 0.069, data-to-parameter ratio = 17.5
National Category
Chemical Engineering
Research subject
Technology (byts ev till Engineering), Glass Technology
Identifiers
URN: urn:nbn:se:lnu:diva-15903DOI: 10.1107/S1600536811042607OAI: oai:DiVA.org:lnu-15903DiVA: diva2:460150
Available from: 2011-11-29 Created: 2011-11-29 Last updated: 2016-07-07Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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