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  • 1
    ISSN: 0044-2313
    Keywords: Rhenium ; rubidium rhenium halide hydrates ; preparation ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: [Rb2(H2O)2][Re3(μ-Cl)3Br7(H2O)2]2 · H2O, a Mixed Halide-Hydrate with the Anionic Dimer {[Re3(μ-Cl)3Br7(H2O)2]2 · H2O}2-[Rb2(H2O)2][Re3(μ-Cl)3Br7(H2O)2]2 · H2O crystallizes as dark redbrown single crystals from an hydrobromic-acid solution of ReCl3 and RbBr at 0°C. An important feature of the crystal structure (monoclinic, C2/c; a = 1494.61(8); b = 835.71(4); c = 3079.96(19) pm; β = 97.801(4)°; Vm = 573.9(4) cm3mol-1; R = 0.060; Rw = 0.038) is the connection of two anions [Re3(μ-Cl)3Br7(H2O)2]- via a water molecule to dimers, {[Re3(μ-Cl)3Br7(H2O)2]2 · H2O}2-. These dimeric units are contained in slabs that are stacked in the [001] direction and held together by Rb+ cations and crystal water.
    Notes: [Rb2(H2O)2][Re3(μ-Cl)3Br7(H2O)2]2 · H2O kristallisiert in dunklen, rotbraunen Einkristallen aus bromwasserstoffsaurer Lösung von Rheniumtrichlorid und Rubidiumbromid bei 0°C. Ein wichtiges Merkmal der Kristallstruktur (monoklin; C2/c; a = 1494,61(8); b = 835,71(4); c = 3079,96(19) pm; β = 97,801(4)°; Vm = 573,9(4) cm3mol-1; R = 0,060; Rw = 0,038) ist die Verknüpfung zweier Anionen [Re3(μ-Cl)3Br7(H2O)2]- über ein Wassermolekül zu Dimeren {[Re3(μ-Cl)3Br7(H2O)2]2 · H2O}2-. Diese dimeren Baugruppen sind zu Schichtpaketen zusammengefaßt, die längs [001] gestapelt und über die Rb+-Ionen in Gemeinsamkeit mit Kristallwasser verbunden sind.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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