Revision of the symmetry and the crystal structure of čejkaite, Na4(UO2)(CO3)3.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F13%3A00397445" target="_blank" >RIV/68378271:_____/13:00397445 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/13:00072869
Result on the web
<a href="http://dx.doi.org/10.2138/am.2013.4331" target="_blank" >http://dx.doi.org/10.2138/am.2013.4331</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2138/am.2013.4331" target="_blank" >10.2138/am.2013.4331</a>
Alternative languages
Result language
angličtina
Original language name
Revision of the symmetry and the crystal structure of čejkaite, Na4(UO2)(CO3)3.
Original language description
The crystal structure of čejkaite, Na4(UO2)(CO3)3 , from the type locality, was determined for the first time by single-crystal X ray diffraction. In contrast to the previously reported pseudohexagonal triclinic symmetry, the current data indicate čejkaite is monoclinic, triply twinned, and belongs to the space group Cc. Refined unit-cell parameters are a=9.2919(8), b=16.0991(11), c=6.4436(3)?, beta=91.404(5)°, and V=963.62(12) ?3. The monoclinic unit cell is also supported by the good fit to the powderdiffraction data. The structure of čejkaite consists of uranyl tricarbonate clusters, for ming sheets sub-parallel to (001) by sharing edges with (Na)-polyhedra. Sheets are interconnected through the uranyl O atoms and columns of (Na1)-polyhedra that share their trigonal faces. All Na atoms in the structure are in sixfold coordination .
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DB - Geology and mineralogy
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
American Mineralogist
ISSN
0003-004X
e-ISSN
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Volume of the periodical
98
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
549-553
UT code for WoS article
000317373200003
EID of the result in the Scopus database
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