Nollmotzite, Mg[U-V((UO2)-O-VI)(2)O4F3]center dot 4H(2)O, the
first natural uranium oxide containing fluorine

J 2018

Nollmotzite, Mg[U-V((UO2)-O-VI)(2)O4F3]center dot 4H(2)O, the first natural uranium oxide containing fluorine

PLÁŠIL, J.; AR KAMPF; Radek ŠKODA a J. ČEJKA

Základní údaje

Originální název

Nollmotzite, Mg[U-V((UO2)-O-VI)(2)O4F3]center dot 4H(2)O, the first natural uranium oxide containing fluorine

Autoři

PLÁŠIL, J.; AR KAMPF; Radek ŠKODA a J. ČEJKA

Vydání

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS, CHESTER, INT UNION CRYSTALLOGRAPHY, 2018, 2052-5206

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10504 Mineralogy

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/18:00106690

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

nollmotzite; new mineral; uranium oxide fluoride; pentavalent uranium

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 23. 4. 2024 14:41, Mgr. Michal Petr

Anotace

V originále

Nollmotzite (IMA2017-100), Mg[U-V((UO2)-O-VI)(2)F3O4](H2O)(4), is a new uranium oxide fluoride mineral found in the Clara mine, Black Forest Mountains, Germany. Electron microprobe analysis provided the empirical formula (Mg1.06CU0.02)(Sigma 1.08)[U-V((UO2)-O-VI)(2)O-3.85 F-3.15][(H2O)(3.69)(OH)(0.31)](Sigma 4.00) based on three U and 15 O + F atoms per formula unit. Nollmotzite is monoclinic, space group Cm, with a = 7.1015 (12) angstrom, b = 11.7489 (17) angstrom, c = 8.1954 (14) angstrom, beta = 98.087 (14)degrees, V = 676.98 (19) angstrom(3) and Z = 2. The crystal structure [twinned by reticular merohedry; refined to R = 0.0369 with GoF = 1.09 for 1527 unique observed reflections, I > 3 sigma (I)] is based upon [U-V((UO2)-O-V-O-I)(2)F3O4](2- )sheets of, beta - U3O8 topology and contains an interlayer with MgF2(H2O)(4) octahedra. Adjacent sheets are linked through F-Mg-F bonds, as well as via hydrogen bonds. The presence of fluorine and pentavalent uranium in the structure of nollmotzite has potentially important implications for the safe disposal of nuclear waste.

Citovat

PLÁŠIL, J.; AR KAMPF; Radek ŠKODA a J. ČEJKA. Nollmotzite, Mg[U-V((UO2)-O-VI)(2)O4F3]center dot 4H(2)O, the first natural uranium oxide containing fluorine. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS. CHESTER: INT UNION CRYSTALLOGRAPHY, 2018, roč. 74, č. 4, s. 362-369. ISSN 2052-5206. Dostupné z: https://doi.org/10.1107/S2052520618007321.

@article{1509325,
   author = {Plášil, J. and Kampf, AR and Škoda, Radek and Čejka, J.},
   article_location = {CHESTER},
   article_number = {4},
   doi = {https://doi.org/10.1107/S2052520618007321},
   keywords = {nollmotzite; new mineral; uranium oxide fluoride; pentavalent uranium},
   language = {eng},
   issn = {2052-5206},
   journal = {ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS},
   title = {Nollmotzite, Mg[U-V((UO2)-O-VI)(2)O4F3]center dot 4H(2)O, the first natural uranium oxide containing fluorine},
   url = {http://dx.doi.org/10.1107/S2052520618007321},
   volume = {74},
   year = {2018}
}

TY  - JOUR
ID  - 1509325
AU  - Plášil, J. - Kampf, AR - Škoda, Radek - Čejka, J.
PY  - 2018
TI  - Nollmotzite, Mg[U-V((UO2)-O-VI)(2)O4F3]center dot 4H(2)O, the first natural uranium oxide containing fluorine
JF  - ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS
VL  - 74
IS  - 4
SP  - 362-369
EP  - 362-369
PB  - INT UNION CRYSTALLOGRAPHY
SN  - 20525206
KW  - nollmotzite
KW  - new mineral
KW  - uranium oxide fluoride
KW  - pentavalent uranium
UR  - http://dx.doi.org/10.1107/S2052520618007321
N2  - Nollmotzite (IMA2017-100), Mg[U-V((UO2)-O-VI)(2)F3O4](H2O)(4), is a new uranium oxide fluoride mineral found in the Clara mine, Black Forest Mountains, Germany. Electron microprobe analysis provided the empirical formula (Mg1.06CU0.02)(Sigma 1.08)[U-V((UO2)-O-VI)(2)O-3.85 F-3.15][(H2O)(3.69)(OH)(0.31)](Sigma 4.00) based on three U and 15 O + F atoms per formula unit. Nollmotzite is monoclinic, space group Cm, with a = 7.1015 (12) angstrom, b = 11.7489 (17) angstrom, c = 8.1954 (14) angstrom, beta = 98.087 (14)degrees, V = 676.98 (19) angstrom(3) and Z = 2. The crystal structure [twinned by reticular merohedry; refined to R = 0.0369 with GoF = 1.09 for 1527 unique observed reflections, I > 3 sigma (I)] is based upon [U-V((UO2)-O-V-O-I)(2)F3O4](2- )sheets of, beta - U3O8 topology and contains an interlayer with MgF2(H2O)(4) octahedra. Adjacent sheets are linked through F-Mg-F bonds, as well as via hydrogen bonds. The presence of fluorine and pentavalent uranium in the structure of nollmotzite has potentially important implications for the safe disposal of nuclear waste.
ER  -

PLÁŠIL, J.; AR KAMPF; Radek ŠKODA a J. ČEJKA. Nollmotzite, Mg[U-V((UO2)-O-VI)(2)O4F3]center dot 4H(2)O, the first natural uranium oxide containing fluorine. \textit{ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS}. CHESTER: INT UNION CRYSTALLOGRAPHY, 2018, roč.~74, č.~4, s.~362-369. ISSN~2052-5206. Dostupné z: https://doi.org/10.1107/S2052520618007321.

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