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  • Inorganic Chemistry  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Na2H3IO6, eine Variante der Markasitstruktur (1988)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 567 (1988), S. 95-100 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Na2H3IO6, a Variant of the Marcasite StructureSingle crystals of Na2H3IO6 were grown for the first time. According to the results of an X-ray crystal structure determination(Pnnm; a = 469.7(3), b = 529.9(2), c = 1005.2(6) pm; Z = 2; 296 diffractometer data; RW = 0.051) iodine is in an octahedral coordination. Sodium is surrounded by six oxygen in a strongly distorted octahedral arrangement. IO6 and NaO6 groups are linked via common vertices and edges in the sense of the rutile or marcasite type of structure. The corresponding structural relationship is discussed.
    Notes: Erstmals wurden Einkristalle von Na2H3IO6 erhalten. Nach der Röntgen-strukturanalyse (Pnnm; a = 469,7(3), b = 529,9(2), c = 1005,2(6) pm; Z = 2; 296 Diffraktometerdaten, RW = 0,051) ist Iod oktaedrisch und Natrium stark verzerrt oktaedrisch von Sauerstoff koordiniert. Die Verknüpfung der Oktaeder erfolgt im Sinne der Rutil- bzw. Markasitstruktur; die entsprechende Strukturverwandtschaft wird diskutiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19885670111
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  • 2
    Electronic Resource
    Electronic Resource
    Ein neuartiges Iod(III, V) Gemischtvalentes Iodoxopolykation in (IO2)3 HSO4 (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 608 (1992), S. 159-165 
    Details
    ISSN: 0044-2313
    Keywords: Iodine ; mixed valent iodine(III, V) polyoxocation ; preparation ; crystal structure ; Raman, i.r. spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A Novel Iodine(III, V) Mixed Valent Iodinepolyoxocation in (IO2)3HSO4Previously unknown (IO2)3HSO4 is formed by action of firstly conc. H3PO4 upon HIO3 or H5IO6 at 310-330° C, and subsequently of conc. H2SO4 at room temperature. Its crystal structure (Pna21; a = 8.907(3), b = 20.464(6), c = 9.784(4) Å; Z = 8; 4354 diffractometer data; R = 0.087, Rw = 0.056) contain the novel polymeric cation (IO203nn+. Iodine(III) is coordinated square-planar by oxygen, iodine(V trigonal- pyramidal. The HSO4- anions are interconnected via hydrogen bonds. Raman and IR spectra are reported.
    Notes: Vorher unbekanntes (IO2)3 HSO4 bildet sich bei Einwirkung von Konz. H3POx4 bei 310-330°C auf Iodsäure(V) oder Hexaoxoiodsäure(VII) und danach von Konz. H2SO4 bei Raumtemperatur. Die Kristallstruktur (Pna21) a = 8,907(3), b = 20,464(6), c = 9,784(4)A; Z = 8; 4354 Diffraktometerdaten; R = 0,087, Rw = 0,056) enthält ein neuartiges Iodpolyoxokation (IO2)3nn+) mit quadratisch-planar von Sauerstoff koordiniertem Iod(III)) neben trigonal-pyramidal koordiniertem Iod(V. Die Hydrogensulfatgruppen sind über Wasserstoffbrückenbindungen untereinander verknüpft. Raman- und IR-Spektren werden mitgeteilt und interpretiert.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926080224
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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