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  • 1980-1984  (4)
  • 1982  (4)
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  • 1980-1984  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    The effect of reduction potential on charge/discharge reactions on porous lead-bismuth electrodes (positives) (1982)
    Springer
    Journal of applied electrochemistry 12 (1982), S. 81-85 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract A series of discharge experiments were performed from the PbO2/O2 region to various reduction potentials using the potential step technique. Two distinct potential ranges were observed, one which occurs at potentials between 1050 and 1100 mV and the second, where there was a much larger output of capacity between 400 and 700 mV. Between these two regions there is a plateau where the relatively small output in capacity during discharge experiments enables almost complete recharging to be effected. The data presented here shows that once the electrode has entered the second reduction region it is virtually impossible to recharge the electrode using this experimental technique.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01112068
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The behaviour of PbO2 in concentrated sulphuric acid (1982)
    Springer
    Journal of applied electrochemistry 12 (1982), S. 627-630 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Linear sweep experiments on Pb in H2SO4 at concentrations in excess of 5 mol dm−3 have been conducted using computer controlled techniques. Measurements have indicated that the maximum charge in the PbO2 reduction peak occurs at 5 mol dm−3, the available capacity decreasing with the concentration of H2SO4.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00614992
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Darstellung und Kristallstruktur von ZrP2S6 und ThP2S6Professor Rudolf Hoppe zum 60. Geburtstage gewidmet (1982)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 491 (1982), S. 295-300 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Crystal Structure of ZrP2S6 and ThP2S6The compounds ZrP2S6 (I) and ThP2S6 (II) are synthesized from the elements at 750-800°C. They are isotypic (P42/m, Z = 2; I: a = 668.2, c = 948.9 pm; II: a = 688.0, c = 990.3 pm) and to be described as M4+(P2S6)4-. The thiohypodiphosphate anion has ideal staggered conformation. The cation is coordinated by a (slightly deformed) 42m dodecahedron of S atoms. The geometrical details correspond to the most favourable ligand distribution.
    Notes: Die Verbindungen ZrP2S6 (1) und ThP2S6 (II) werden aus den Elementen bei 750-800°C in Einkristallen erhalten. Sie sind isotyp (P42/m, Z = 2; I: a = 668,2, c = 948,9 pm; II: a = 688,0, c = 990,3 pm) und als M4+(P2S6)4- zu formulieren. Das Thiohypodiphosphatanion besitzt ideal gestaffelte Konformation; das Koordinationspolyeder aus S-Atomen um das Kation ist (nahezu) ein 42m Dodekaeder, dessen geometrische Details der elektrostatisch günstigsten Liganden-anordnung in engen Grenzen entsprechen.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19824910138
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Die Kristallstruktur von NaAlCl4 · 1,5 SO2 (1982)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 492 (1982), S. 7-14 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Structure of NaAlCl4 · 1.5 SO2A single crystal of the title compound could be prepared by means of a micro bridgman technique. The crystal (melting point -8°C) was measured on a four circle diffractometer at -25°C. NaAlCl4 · 1.5 SO2 crystallizes monoclinically in the space group P 21/n (No. 14) with a = 3159.8(33), b = 1004.6(11), c = 637.0(8) pm and β = 93.39(9)°. The main features of this novel structure type are AlCl4 tetrahedra and NaO2Cl4 as well as NaO3Cl3 octahedra. Two non-equivalent polyhedra of each type occur in the asymmetric unit. Tetrahedra are sharing chlorine atoms with octahedra and octahedra are linked mutually by SO2-bridges. Bond distances and their correlations to the conformation are discussed.
    Notes: Die bei -8°C schmelzende Titelverbindung konnte durch eine miniaturisierte Bridgman-Technik als Einkristall dargestellt und auf einem Vierkreisdiffraktometer bei -25°C vermessen werden. NaAlCl4 · 1,5SO2 kristallisiert monoklin in der Raumgruppe P 21/n (Nr. 14) mit a = 3159,8(33), b = 1004,6(11), c = 637,0(8) pm und β = 93,39(9)°. Die wesentlichen Merkmale dieses bisher unbekannten Strukturtyps sind (je zwei kristallographisch verschiedene) AlCl4-Tetraeder und NaO2Cl4- bzw. NaO3Cl3-Oktaeder in der asymmetrischen Einheit. Verknüpft sind Tetraeder mit Oktaedern über gemeinsame Chloratome und Oktaeder untereinander über SO2-Brücken. Im Zusammenhang mit der Konformation werden die Bindungsabstände diskutiert.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19824920102
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    Paper (German National Licenses)
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