Podrobnosti záznamu

Název
    Raman spectroscopic study of the uranyl carbonate mineral zellerite
Autor
    Čejka, Jiří
    Dickfos, Marilla J.
    Frost, Ray Leslie
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Journal of Raman Spectroscopy
Svazek/č.
    Roč. 39, č. 5
Strany
    5
Rok
    2008
Výraz tezauru
    carbonates
    infrared spectroscopy
    mineralogy
    Raman spectroscopy
    uranyl minerals
    zellerite
Klíčové slovo
    Carbonate
    Mineral
    Raman
    Spectroscopic
    Study
    Uranyl
    Zellerite
Abstrakt (anglicky)
   Raman and infrared spectra of the uranyl mineral zellerite, Ca[(UO2)(CO3)2(H2O)2] 3H2O, were measured and tentatively interpreted. U-O bond in uranyl and O-H center dot center dot center dot O hydrogen bonds were calculated from the vibrational spectra. The presence of structurally nonequivalent water molecules in the crystal structure of zellerite was inferred. A proposed chemical formula of zellerite is supported. Raman bands at 3514, 3375 and 2945 cm-1 and broad infrared bands at 3513, 3396 and 3326 cm-1 are related to the v OH stretching vibrations of hydrogen-bonded water molecules. Observed wavenumbers of these vibrations prove that in fact hydrogen bonds participate in the crystal structure of zellerite. The presence of two bands at 1618 and 1681 cm-1 proves structurally distinct and nonequivalent water molecules in the crystal structure of zellerite.
Přispěvatel
    Národní muzeum Praha
Kód přispěvatele
    NM
Zdrojový formát
    R
Datum importu
    8. 8. 2012