Crystal structures of three CaSeO4 polymorphs and their mineralogical relationships
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F14%3A00107086" target="_blank" >RIV/00216224:14310/14:00107086 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.researchgate.net/publication/263725673_Crystal_structures_of_three_CaSeO4_polymorphs_and_their_mineralogical_relationships" target="_blank" >https://www.researchgate.net/publication/263725673_Crystal_structures_of_three_CaSeO4_polymorphs_and_their_mineralogical_relationships</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1127/0077-7757/2014/0257" target="_blank" >10.1127/0077-7757/2014/0257</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Crystal structures of three CaSeO4 polymorphs and their mineralogical relationships
Popis výsledku v původním jazyce
Three polymorphs of anhydrous calcium selenate CaSeO4 have been synthesized; the orthorhombic as well as the monoclinic polymorph were prepared at 210 degrees C; crystals of tetragonal CaSeO4 were grown at 70 degrees C. Based on single crystal X-ray diffraction data the structure of the orthorhombic compound was solved and refined in space group Cmca [a = 7.192(1), b = 14.404(2), c = 6.398(1) angstrom, V = 662.8 angstrom(3), Z = 8 to R1 = 2.0 %, wR2 = 5.5 %]. It belongs to a new structure type with close resemblance to zircon and anhydrite. The structure of monoclinic CaSeO4 is isotypic with monazite and was refined in space group P2(1)/n [a = 6.860(1), b = 7.086(1), c = 6.692(1) angstrom, beta = 104.21(1)degrees, V = 315.3 angstrom(3), Z = 4; R1 = 2.6 %, wR2 = 5.2 %]. The tetragonal modification, refined in space group I4(1)/a, (a = 5.054(1), c = 11.678(2) angstrom, V = 298.3 angstrom(3), Z = 4; R1 = 1.6 %, wR2 = 4.1 %) represents a scheelite structure type. In addition, structure relationships within A([8])X([4])O(4) representatives are emphasized.
Název v anglickém jazyce
Crystal structures of three CaSeO4 polymorphs and their mineralogical relationships
Popis výsledku anglicky
Three polymorphs of anhydrous calcium selenate CaSeO4 have been synthesized; the orthorhombic as well as the monoclinic polymorph were prepared at 210 degrees C; crystals of tetragonal CaSeO4 were grown at 70 degrees C. Based on single crystal X-ray diffraction data the structure of the orthorhombic compound was solved and refined in space group Cmca [a = 7.192(1), b = 14.404(2), c = 6.398(1) angstrom, V = 662.8 angstrom(3), Z = 8 to R1 = 2.0 %, wR2 = 5.5 %]. It belongs to a new structure type with close resemblance to zircon and anhydrite. The structure of monoclinic CaSeO4 is isotypic with monazite and was refined in space group P2(1)/n [a = 6.860(1), b = 7.086(1), c = 6.692(1) angstrom, beta = 104.21(1)degrees, V = 315.3 angstrom(3), Z = 4; R1 = 2.6 %, wR2 = 5.2 %]. The tetragonal modification, refined in space group I4(1)/a, (a = 5.054(1), c = 11.678(2) angstrom, V = 298.3 angstrom(3), Z = 4; R1 = 1.6 %, wR2 = 4.1 %) represents a scheelite structure type. In addition, structure relationships within A([8])X([4])O(4) representatives are emphasized.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10504 - Mineralogy
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2014
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Neues Jahrbuch fur Mineralogie, Abhandlungen
ISSN
0077-7757
e-ISSN
—
Svazek periodika
191
Číslo periodika v rámci svazku
2
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
9
Strana od-do
215-223
Kód UT WoS článku
000331098000007
EID výsledku v databázi Scopus
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