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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 308-312 
    ISSN: 0044-2313
    Keywords: Iodoargentates ; crystal structure ; dithallium triiodoargentate ; sodium diiodoargentate trihydrate ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Structure Investigations of Tl2AgI3 und NaAgI2 · 3 H2OTl2AgI3 was synthesized by the reaction of TlI with AgI in aqueous HI (25%) in a pressure vessel. The compound crystallizes in the rhombohedral space group R3; a = 1044,3(2); c = 1993,5(3)pm; Z = 9. The crystal structure contains trinuclear anions [Ag3I8]5- and [ITl6]5+ octahedra. The anions are composed of two AgI4-tetrahedra which are connected to an AgI6 octahedron via common faces.Single crystals of NaAgI2 · 3 H2O were formed by reaction of NaI with AgI in aqueous solution. The compound crystallizes in the orthorhombic space group Pbca with lattice parameters a = 711,2(2); b = 939,8(3); c = 2462,2(4) pm; Z = 8. The crystal structure is built up by polymeric layers ∞2[AgI3/3I½1/2-] of corner sharing AgI4 tetrahedra (GaOCl type) and ∞1[Na(H2O)4/2(H2O)I½1/2+] octahedra chains.
    Notes: Tl2AgI3 wurde durch Umsetzung von TlI mit AgI in wäßriger HI (25%) in einem Aufschlußautoklaven kristallin erhalten. Es kristallisiert in der rhomboedrischen Raumgruppe R3; a = 1044,3(2); c = 1993,5(3) pm; Z = 9. Die Kristallstruktur ist aus dreikernigen Anionen [Ag3I8]5- und [ITl6]5+-Oktaedern aufgebaut. Die Anionen bestehen aus zwei AgI4-Tetraedern, die über gemeinsame Flächen an ein AgI6-Oktaeder gebunden sind.Die Verbindung NaAgI2 · 3 H2O wurde aus wäßriger Lösung durch Umsetzung von NaI mit AgI einkristallin gewonnen. Die orthorhombische Raumgruppe Pbca hat die Zellparameter a = 711,2(2); b = 939,8(3); c = 2462,2(4) pm; Z = 8. Die Kristallstruktur ist durch polymere Schichten ∞2[AgI3/3I½1/2-] aus eckenverknüpften AgI4-Tetraedern (GaOCl-Typ) und ∞1[Na(H2O)4/2(H2O)I1/2+]-Oktaederketten gekennzeichnet.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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