<div class="csl-bib-body">
<div class="csl-entry">Weil, M. (2017). The phase transition of Pb8F14I2. <i>Monatshefte Für Chemie - Chemical Monthly</i>. https://doi.org/10.1007/s00706-016-1854-z</div>
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The reversible phase transition of Pb8F14I2 is of continuous type and takes place at about 107 °C as monitored by temperature-dependent single crystal and powder X-ray diffraction measurements, optical microscopy, and differential scanning calorimetry. The low-temperature ferroelastic phase crystallizes in the orthorhombic crystal system (23 °C, Bmmb, Z = 2, a = 6.0699(6) Å, b = 6.0165(6) Å, c = 25.077(2) Å, 1487 structure factors, 41 parameter, R(F 2 ) = 0.0346, wR(F 2) = 0.0771) and changes its symmetry to the tetragonal crystal system into the high-temperature paraelastic phase (130 °C, I4/mmm, Z = 1, a = 4.2667(12) Å, c = 25.388(7) Å, 430 structure factors, 303 parameter, R(F 2 ) = 0.0575, wR(F 2) = 0.1564). Group–subgroup relationships between the two structures and a hypothetical intermediate structure are presented.
en
dc.language
Deutsch
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dc.language.iso
en
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dc.publisher
Springer
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dc.relation.ispartof
Monatshefte für Chemie - Chemical Monthly
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dc.subject
Lead fluoride halide
en
dc.subject
Crystal structure determination
en
dc.subject
Thermal analysis
en
dc.subject
Group–subgroup relationships
en
dc.title
The phase transition of Pb8F14I2
en
dc.type
Article
en
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Artikel
de
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CC BY 4.0
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dcterms.dateSubmitted
2016-08-23
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The Author(s) 2016
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Original Research Article
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true
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vor
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Monatshefte für Chemie - Chemical Monthly
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E164 - Institut für Chemische Technologien und Analytik
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tuw.publisher.doi
10.1007/s00706-016-1854-z
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dc.date.onlinefirst
2016-10-08
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1434-4475
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AC15173475
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urn:nbn:at:at-ubtuw:3-3856
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0000-0001-5235-9910
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research article
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Publications
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Open Access
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http://purl.org/coar/resource_type/c_2df8fbb1
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E164-05 - Forschungsbereich Strukturchemie
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0000-0001-5235-9910
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E164 - Institut für Chemische Technologien und Analytik