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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 435 (1977), S. 119-126 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Raman Spectra of the System SnBr2—CsBr in the Solid and Molten StateRaman spectra of crystalline and molten SnBr2 as well as of molten SnBr2—CsBr mixtures were measured. In molten SnBr2 polymeric chains with similar structural elements as in solid SnBr2 will be formed. Temperature rising causes a heterolytic disruption into smaller but still polymeric units of varying chain length. Equilibrium fragmentation reactions occur by bromide ion addition. In bromide rich SnBr2—CsBr melts (Br-/Sn2+ ratio 3-6) Sn2Br5-, SnBr3- and Br- ions exist with Sn2Br5- species predominating.
    Notes: Sowohl polykristallines und geschmolzenes SnBr2 als auch SnBr2—CsBr-Schmelzen wurden ramanspektroskopisch untersucht. Beim Übergang vom festen in den flüssigen Zustand entstehen beim SnBr2 polymere Ketten mit den Strukturelementen des festen SnBr2. Temperaturerhöhung bewirkt eine heterolytische Spaltung in kleinere, aber immer noch polynukleare Kettenbruchstücke. Bei Br--Zugabe erfolgen Gleichgewichtsabbaureaktionen. In Br--reichen SnBr2—CsBr-Schmelzen (Br-/Sn2+-Verhältnis 3-6) liegen hauptsächlich Sn2Br5--Spezies neben SnBr3-- und Br--Ionen vor.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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