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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 1419-1425 
    ISSN: 0044-2313
    Keywords: Lithium permanganate, Li[MnO4] ; preparation ; crystal structure ; neutron powder data ; MAPLE calculation ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Coordination Number 4 or 6 for Lithium?: The Crystal Structure of Lithium Permanganate, Li[MnO4]Waterless 7Li[MnO4] was obtained by dehydration of 7Li[MnO4] · 3 D2O at 60°C above P4O10 in vacuum as violet powder.The structure determination by neutron diffraction measurements via pulsed polychromatic neutron source [time-of-flight powder diffractometer; profile-R-value = 2.1%, Bragg-R-value = 7.4%] confirms the space group Cmcm with a = 551.402(8), b = 839.754(15), c = 635.911(10) pm (Z = 4); parameters see text. The crystal structure of Li[MnO4] corresponds to the CrVO4-type with coordination number 6 for lithium and 4 for manganese.The Madelung Part of Lattice Energie, MAPLE, the Effective Coordination Numbers, ECoN and the charge distribution were calculated and discussed.
    Notes: Durch Trocknung von 7Li[MnO4] · 3 D2O bei 60°C über P4O10 im Vakuum wurde wasserfreies 7Li[MnO4] als violettes Pulver erhalten.Die Strukturaufklärung mittels Neutronenbeugungsmessungen im gepulsten polychromatischen Neutronenstrahl [Flugzeitdiffraktometer; Profil-R-Wert = 2,1%, Bragg-R-Wert = 7,4%] belegt die Raumgruppe Cmcm mit a = 551,402(8), b = 839,754(15), c = 635,911(10)pm (Z = 4); Parameter siehe Text. Die Kristallstruktur von Li[MnO4] entspricht dem CrVO4-Typ mit der Koordinationszahl 6 für Lithium und 4 für Mangan.Der Madelunganteil der Gitterenergie, MAPLE, Effektive Koordinationszahlen, ECoN und die Ladungsverteilung wurden berechnet und diskutiert.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 601 (1991), S. 41-46 
    ISSN: 0044-2313
    Keywords: Ruthenates(VI) ; preparation ; single crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Constitution of Ruthenates (VI) with Alkali Metals. 2. On the Structure of K2[RuO3(OH)2]By evaporating an aqueous extract of a KOH melt with RuO2 (KOH: RuO2 = 20:1; at air, corundum crucible, 30 min.) rubin-red single crystals of K2[RuO3(OH)2] have been prepared. Up to this day pure samples could not be prepared.The structure determination (four circle diffractometer, MoKα, 1664 I0 (hkl), R = 2.1%) confirms a new type of structure [space group P212121 (Nr. 19) with a = 803.1(5), b = 669.9(3) und c = 1 061.6(6) pm]. Ru is trigonal-bipyramidale coordinated.
    Notes: Durch Einengen eines wäßrigen Auszuges einer KOH-Schmelze mit RuO2 (KOH: RuO2 = 20:1; an der Luft, Sinter-Korundtiegel, 30 Min.) wurden rubinrote Einkristalle von K2[RuO3(OH)2] erhalten. Reine Pulverproben konnten bislang nicht dargestellt werden.Die Strukturaufklärung (Vierkreisdiffraktometer, MoKα, 1664 IO (hkl), R = 2, 1%) belegt einen neuen Strukturtyp [Raumgruppe P212121 (Nr. 19) mit a = 803,1(5), b = 669,9(3) und c = 1 061,6(6) pm], in dem Ru trigonal-byramidal koordiniert ist.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 618 (1992), S. 60-63 
    ISSN: 0044-2313
    Keywords: Litho-Manganate(V), Cs2{Li[MnO4]} ; preparation ; single crystal structure ; MAPLE calculation ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The First “Litho-Manganate(V)” with Layer-Structure: Cs2{Li[MnO4]}By heating intimate mixtures of the oxides [CsO1,2, Li2MnO3; Cs: Mn = 2,3 : 1; Ag-Zylinder, 580°C, 62 d] blue-green single crystals of Cs2{Li[VO4]} were obtained for the first time. The new “Litho-Manganate(V)” crystallices orthorhombic (SG: Cmc21) with a = 596.08(7), b = 1202.6(1), c = 816.8(1) pm (Guinier-Simon data), Z = 4. It is isotypic with Cs2{Li[VO4]} [1].The structure was determined by four-circle-diffractometer data [Mo—Kα, for 496Io(hkl) R = 3.1%, R, = 2.4%], parameters see text.The Madelung Part of Lattice Energie, MAPLE and Effective Coordination Numbers, ECoN, these calculated via Mean Fictive Ionic Radii, MEFIR, are calculated and disscussed.
    Notes: Erstmals wurde Cs2{Li[MnO4]} beim Tempern inniger Gemenge der Oxide [CsO1,2, Li2MnO3; Cs: Mn = 2,3 : 1; Ag-Zylinder, 580°C, 62d] in Form blaugrüner Einkristalle erhalten. Das neue “Litho-Manganat(V)” kristallisiert orthorhombisch (RG: Cmc21) mit a = 596,08(7), b = 1202,6(1), c = 816,8(1) pm (Guinier-Simon-Daten), Z = 4. Es ist isotyp zu Cs2{Li[VO4]} [1].Die Strukturaufklärung erfolgte mittels Vierkreisdiffraktometerdaten [Mo—Kα, für 496 Io(hkl) R = 3,1%, Rw = 2,4%], Parameter siehe Text.Der Madelunganteil der Gitterenergie, MAPLE und die Effektiven Koordinationszahlen, ECoN, diese über Mittlere Fiktive Ionenradien, MEFIR, werden berechnet und diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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