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  • 11
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 559 (1988), S. 95-105 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Structure and Magnetic Properties of Cs2Mn3S4 and Cs2Co3S4The atomic arrangements of the isotypic compounds Cs2Mn3S4 and Cs2Co3S4 were determined by X-ray investigations on single crystals (space group Ibam, Z = 4). To interprete the magnetic properties of Cs2Mn3S4 mixed crystals of the series Cs2(MnxZn1-x)3S4 have been examined. Additionally neutron diffraction experiments were carried out and yielded the spin structures of Cs2Mn3S4 and Cs2Co3S4 (Shubnikov space group Ibam'). The deviations of the magnetic moments from those expected for high-spin d5 ions are explained by means of crystal field calculations.
    Notes: Der Aufbau der isotypen Verbindungen Cs2Mn3S4 und Cs2Co3S4 wurde an Einkristallen bestimmt (Raumgruppe Ibam, Z = 4). Zur Deutung der magnetischen Eigenschaften des Cs2Mn3S4 wurde die Mischkristallreihe Cs2(MnxZn1-x)3S4 untersucht. Neutronenbeugungsuntersuchungen ermöglichten darüber hinaus die Bestimmung der - antiferromagnetischen - Spinstrukturen von Cs2Mn3S4 und Cs2Co3S4 (Shubnikov-Raumgruppe Ibam'). Die Abweichungen der gemessenen magnetischen Momente von den zu erwartenden High-Spin-Werten lassen sich mit Kristallfeldberechnungen in Einklang bringen.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 412-416 
    ISSN: 0044-2313
    Keywords: Alkali transition metal chalcogenides ; magnetic structures ; neutron diffraction ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Magnetic Interactions in Ternary Cobalt Chalcogenides containing Isolated Tetrahedral Cobalt Anionic Groups. The Spin Structures of Na6CoS4 and Na6CoSe4The sodium cobalt chalcogenides Na6CoS4 and Na6CoSe4 are characterized by isolated [CoX4]-units. Despite the large distances of more than 6 Å between the cobalt ions magnetic inter-actions at low temperatures lead to threedimensionally ordered spin structures, that were determined from neutron diffraction experiments. The magnetic structure can be described in the Shubnicov group P2abc21 with a unit cell that is four times as large as the crystallographic cell. The magnetic moments of both compounds correspond to the value expected for three unpaired electrons per Co2+ ion.
    Notes: Die Natriumcobaltchalkogenide Na6CoS4 und Na6CoSe4 sind durch isolierte [CoX4]-Einheiten charakterisiert. Trotz der großen Abstände der magnetischen Zentren von über 6Å führen bei tiefen Temperaturen magnetische Wechselwirkungen zu dreidimensional geordneten Spinstrukturen, die über Neutronenbeugungsuntersuchungen aufgeklärt werden konnten. Die magnetische Struktur läßt sich in der Shubnikov-Raumgruppe P2abc21 mit einer Elementarzelle beschreiben, die gegenüber der kristallographischen das vierfache Volumen besitzt. Die Größe der magnetischen Momente entspricht dem für Co2+ zu erwartenden Wert von drei ungepaarten Elektronen.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 566 (1988), S. 31-38 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Structure of Ternary Platinum Hydrides A3PtH5 with A ≙ K, Rb or CsThe ternary platinum hydrides A3PtH5 (A ≙ K, Rb or Cs) have been synthesized by the reaction of the binary alkali metal hydrides with platinum sponge in a pure hydrogen atmosphere. The crystal structure was determined by X-ray investigations on powdered samples and neutron diffraction experiments on the deuterated compounds. The room temperature modifications (space group P4/mbm) contain planar [PtH4]2--groups and additional hydride ions which are coordinated by A ions exclusively. These crystal structures are isotypic with those of the fluorides A3PdF5 (A ≙ Rb, Cs). In the cubic high temperature modifications of Rb3PtH5 and Cs3PtH5 (space group Pm3m) the movements of the [PtH4]2- groups result in an atomic arrangement corresponding to that of a perovskite according to the formula (PtH4)HA3.
    Notes: Die Synthese der ternären Platinhydride A3PtH5 (A ≙ K, Rb oder Cs) gelingt durch Umsetzung der binären Alkalimetallhydride mit Platinschwamm in einer hochreinen Wasserstoffatmosphäre. Röntgenograhische Untersuchungen an pulverförmigen Proben und Neutronenbeugungsexperimente an den deuterierten Verbindungen führten zur Strukturaufklärung. Die Atomanordnungen in den Raumtemperatur-Modifikationen (Raumgruppe: P4/mbm) enthalten neben planaren [PtH4]2--Baugruppen Hydridionen, die ausschließlich von A-Ionen koordiniert sind. Der Strukturaufbau entspricht dem der ternären Fluoride A3PdF5 (A ≙ Rb, Cs). In den kubischen Hochtemperatur-Modifikationen von Rb3PtH5 und Cs3PtH5 (Raumgruppe: Pm3m) existieren, bedingt durch Bewegungsvorgänge in den [PtH4]2--Gruppen, perowskitartige Strukturen, entsprechend der Schreibweise (PtH4)HA3.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 14
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 18 (1885), S. 3073-3076 
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 15
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 19 (1886), S. 2901-2917 
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 16
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 20 (1887), S. 544-550 
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 20 (1887), S. 1039-1042 
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 18
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 22 (1889), S. 1875-1901 
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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