High-temperature induced dehydration, phase transition and exsolution in amicite: A single-crystal X-ray study ...
Temperature dependent single-crystal X-ray data were collected on amicite K4Na4(Al8Si8O32)·11H2O from Kola Peninsula (Russia) in steps of 25 °C from room temperature to 175 °C and of 50 °C up to 425 °C. At room temperature amicite has space group I2 with a = 10.2112(1), b = 10.4154(1), c = 9.8802(1)...
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ftdatacite:10.7892/boris.45471 2024-09-15T18:16:59+00:00 High-temperature induced dehydration, phase transition and exsolution in amicite: A single-crystal X-ray study ... Armbruster, Thomas Krivovichev, Sergey V. Danisi, Rosa Micaela Gfeller, Frank Yakovenchuk, Victor N. Lazic, Biljana Pakhomova, Anna S. 2013 application/pdf https://dx.doi.org/10.7892/boris.45471 http://boris.unibe.ch/45471/ en eng Elsevier info:eu-repo/semantics/restrictedAccess 550 Earth sciences & geology 540 Chemistry Text ScholarlyArticle article-journal 2013 ftdatacite https://doi.org/10.7892/boris.45471 2024-09-02T10:00:02Z Temperature dependent single-crystal X-ray data were collected on amicite K4Na4(Al8Si8O32)·11H2O from Kola Peninsula (Russia) in steps of 25 °C from room temperature to 175 °C and of 50 °C up to 425 °C. At room temperature amicite has space group I2 with a = 10.2112(1), b = 10.4154(1), c = 9.8802(1) Å, β = 88.458(1)°, V = 1050.416(18) Å3. Its crystal structure is based on a Si–Al ordered tetrahedral framework of the GIS type with two systems of eight-membered channels running along the a and c axes. Extraframework K and Na cations are ordered at two fully occupied sites. Above 75 °C amicite was found to partly dehydrate into two separate but coherently intergrown phases, both of space group I2/a, one K-rich ∼K8(Al8Si8O32) ·4H2O (at 75 °C: a = 10.038(2), b = 9.6805(19), c = 9.843(2) Å, β = 89.93(3)°, V = 956.5(3) Å3) and the other Na-rich ∼Na8(Al8Si8O32)·2H2O (at 75 °C: a = 9.759(2), b = 8.9078(18), c = 9.5270(19) Å, β = 89.98(3)°, V = 828.2(3) Å3). Upon further heating above 75 °C the Na- and K-phases lost ... Text kola peninsula DataCite |
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550 Earth sciences & geology 540 Chemistry |
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550 Earth sciences & geology 540 Chemistry Armbruster, Thomas Krivovichev, Sergey V. Danisi, Rosa Micaela Gfeller, Frank Yakovenchuk, Victor N. Lazic, Biljana Pakhomova, Anna S. High-temperature induced dehydration, phase transition and exsolution in amicite: A single-crystal X-ray study ... |
topic_facet |
550 Earth sciences & geology 540 Chemistry |
description |
Temperature dependent single-crystal X-ray data were collected on amicite K4Na4(Al8Si8O32)·11H2O from Kola Peninsula (Russia) in steps of 25 °C from room temperature to 175 °C and of 50 °C up to 425 °C. At room temperature amicite has space group I2 with a = 10.2112(1), b = 10.4154(1), c = 9.8802(1) Å, β = 88.458(1)°, V = 1050.416(18) Å3. Its crystal structure is based on a Si–Al ordered tetrahedral framework of the GIS type with two systems of eight-membered channels running along the a and c axes. Extraframework K and Na cations are ordered at two fully occupied sites. Above 75 °C amicite was found to partly dehydrate into two separate but coherently intergrown phases, both of space group I2/a, one K-rich ∼K8(Al8Si8O32) ·4H2O (at 75 °C: a = 10.038(2), b = 9.6805(19), c = 9.843(2) Å, β = 89.93(3)°, V = 956.5(3) Å3) and the other Na-rich ∼Na8(Al8Si8O32)·2H2O (at 75 °C: a = 9.759(2), b = 8.9078(18), c = 9.5270(19) Å, β = 89.98(3)°, V = 828.2(3) Å3). Upon further heating above 75 °C the Na- and K-phases lost ... |
format |
Text |
author |
Armbruster, Thomas Krivovichev, Sergey V. Danisi, Rosa Micaela Gfeller, Frank Yakovenchuk, Victor N. Lazic, Biljana Pakhomova, Anna S. |
author_facet |
Armbruster, Thomas Krivovichev, Sergey V. Danisi, Rosa Micaela Gfeller, Frank Yakovenchuk, Victor N. Lazic, Biljana Pakhomova, Anna S. |
author_sort |
Armbruster, Thomas |
title |
High-temperature induced dehydration, phase transition and exsolution in amicite: A single-crystal X-ray study ... |
title_short |
High-temperature induced dehydration, phase transition and exsolution in amicite: A single-crystal X-ray study ... |
title_full |
High-temperature induced dehydration, phase transition and exsolution in amicite: A single-crystal X-ray study ... |
title_fullStr |
High-temperature induced dehydration, phase transition and exsolution in amicite: A single-crystal X-ray study ... |
title_full_unstemmed |
High-temperature induced dehydration, phase transition and exsolution in amicite: A single-crystal X-ray study ... |
title_sort |
high-temperature induced dehydration, phase transition and exsolution in amicite: a single-crystal x-ray study ... |
publisher |
Elsevier |
publishDate |
2013 |
url |
https://dx.doi.org/10.7892/boris.45471 http://boris.unibe.ch/45471/ |
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kola peninsula |
genre_facet |
kola peninsula |
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info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.7892/boris.45471 |
_version_ |
1810454957651918848 |