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  • 1
    Electronic Resource
    Electronic Resource
    Thermogravimetrische Untersuchungen an zeolithischen Erdalkalithioferraten(III) (1980)
    Springer
    Monatshefte für Chemie 111 (1980), S. 475-481 
    Details
    ISSN: 1434-4475
    Keywords: Chalcogenides ; Thermogravimetry ; Zeolitic Hydrates
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The degradation of the hydrates of the alkaline earth thioferratesM(FeS2)2·xH2O,M=Ca, Sr, Ba, resulting from ion exchange on KFeS2, is studied by TG and by X-ray diffraction analysis. The zeolitic character of the very loosely bound water in these compounds is proved. There exist several cristallographically distinct phases as a function of the water content.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00903244
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  • 2
    Electronic Resource
    Electronic Resource
    Na3Fe2S4, ein Thioferrat mit gemischt valenter sk∞/1[FeS2]-Kette (1981)
    Springer
    Monatshefte für Chemie 112 (1981), S. 83-89 
    Details
    ISSN: 1434-4475
    Keywords: Chalcogenides ; Na3Fe2S4 ; Thioferrates
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Na3Fe2S4 has been prepared from Na2S, S and Fe. It crystallizes in space group Pnma,a=6.6333 (5) Å,b=10.675 (1) Å,c=10.677 (2) Å,Z=4. The crystal structure, as determined from single crystal four-circle diffractometer data (R=2.8%), consists of sk∞/1[FeS2]-chains formed by slightly distorted edge sharing [FeS4]-tetrahedra, the iron atoms having a formal valency of +2.5. The sodium ions are approximately octahedrally coordinated. Exposed to air, Na3Fe2S4 readily takes up water to form a hydrate by a pertially topochemical reaction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00906245
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    Paper (German National Licenses)
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