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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 596 (1991), S. 149-155 
    ISSN: 0044-2313
    Keywords: Barium acetylenedicarboxylate monohydrate ; synthesis ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Crystal Structure of Barium Acetylene Dicarboxylate Monohydrate - Ba[C2(COO)2] · H2OBa[C2(COO)2] · H2O crystallizes in the monoclinic space group P21/a. The lattice constants are a = 753.4(2), b = 921.8(2), c = 881.8(2) pm and β = 102.00(2)°. The crystal structure is characterized by an intricate three-dimensional framework made up by Ba2+ and [C2(COO)2]2- ions. Ba2+ has coordination number 9 and is bound to two water molecules and seven oxygen atoms belonging to carboxylate groups of the dianion. The [C2(COO)2]2- ion does not merely act like a multiple monodentate ligand, but coordinates Ba2+ in a chelate-like manner as well. The carboxylate groups of the dianion are inclined to each other by 65°.
    Notes: Ba[(C2(COO)2)2] · H2O kristallisiert in der monoklinen Raumgruppe P21/a mit den Gitterkonstanten a = 753,4(2), b = 921,8(2), c = 881,8(2) pm und β = 102,00(2)°. Es liegt ein kompliziert gebautes dreidimensionales Gerüst aus Ba2+- und [C2(COO)2]2--Ionen vor. Ba2+ besitzt Koordinationszahl 9 und ist von zwei Wassermolekülen und sieben Sauerstoffatomen aus den Dianionen umgeben. Das [C2(COO)2]2--Ion wirkt nicht nur als mehrfach einzähniger Ligand, sondern bindet Ba2+ mit einer Carboxylatgruppe auch chelatartig. Die Carboxylatgruppen des Dianions sind um etwa 65° gegeneinander verdreht.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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