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  • 1
    Electronic Resource
    Electronic Resource
    Ein neuer Typ quaternärer Oxometallate: K3Na2[InO4] (1990)
    Springer
    Monatshefte für Chemie 121 (1990), S. 853-864 
    Details
    ISSN: 1434-4475
    Keywords: Oxoindate ; K3Na2[InO4] ; Structure ; MAPLE ; Charge distribution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract With K3Na2[InO4] the first example of new kind of oxides of the type A3A′2[MO4] with R(A)〉R(A′) was prepared in form of colourless single crystals by oxidation of the intermetallic compound “KNaIn2”. Intimate mixtures of the educts (K2O2: “K0.5Na0.5In”=1.2:1) were heated in sealed Ag-tubes (380 °C, 2 d, then 480 °C, 5 d). K3Na2[InO4] crystallizes monoclinic (P21/n) witha=1012.6 pm,b=969.9 pm,c=725.4 pm, β=91.02°;Z=4. The crystal structure was elucidated by four-circle diffractometer (PW 1100, Ag-Kā, 6047I o(hkl),R=7.3%,R w=4.4%). The new typ forms a very complicated 3-dimensional network ∞ 3 {Na2InO4} stuffed by 3 K+. The Madelung part of lattice energy, MAPLE, is calculated and discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00808948
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  • 2
    Electronic Resource
    Electronic Resource
    Das erste oligomere Oxoindat(III): K14[In4O13] (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 1818-1826 
    Details
    ISSN: 0044-2313
    Keywords: New Oxoindate(III) ; Structure ; MAPLE Calculations ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The First Oligooxoindate(III): K14[In4O13]For the first time K14[In4O13] was obtained by heating intimate mixtures of K2O, CdO and elementar In (molar ratio 3.1:1.0:1.0) in closed Ag-cylinders (30 days, 450°C) in form of yellow-brown single crystals. The structure determination by four circle diffractometer data MoKα, 3 689 out of 3 689 Io(hkl), R = 4.22, Rw = 2.45) confirms the space group P21/c with lattice constants a = 687.7 pm; b = 3 118.5 pm; c = 686.4 pm; β = 119.3°; Z = 2. The characteristic feature of the structure is [In4O13]14- groups, oligomers consisting of four corner-sharing InO4 tetrahedra. These groups are connected by crystallographically distinct potassium atoms. The structure is isotypic with Na14[Al4O13] [2] and K14[Fe3O13] [3]. ECoN and MAPLE calculationes are discussed.
    Notes: Beim Tempern inniger Gemenge von K2O, CdO und elementarem In (Einwaageverhältnis 3,1:1,0:1,0) in verschlossenen Ag-Zylindern (30 Tage, 450°C) erhielten wir neben schwach roten Kristallen von K5InO4 [1] auch gelbbraune Kristalle von K14[In4O13]. Die Strukturaufklärung (Vierkreisdiffraktometerdaten, MoKα, 3 698 von 3 698 Io(hkl), R = 4,22%, Rw = 2,45%) erfolgte in der Raumgruppe P21/c mit den Gitterkonstanten: a = 687,7 pm; b = 3 118,5 pm; c = 686,4 pm; β = 119,3°; Z = 2. Charakteristischer Teil der Struktur sind „isolierte“ Baugruppen [In4O13]14-, die aus vier über Ecken verknüpften InO4-Tetraedern bestehen und durch kristallographisch unterschiedliche K+ in verschiedenen Richtungen verknüpft werden. Dieses Oxid ist isotyp zu Na14[Al4O13] [2] und K14[Fe4O13] [3]. Der Madelunganteil der Gitterenergie MAPLE wird berechnet und mit den binären Oxiden verglichen.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936191103
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  • 3
    Electronic Resource
    Electronic Resource
    Neues über Zweikernige Oxoferrate(II) (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 193-201 
    Details
    ISSN: 0044-2313
    Keywords: Binuclear Oxoferrates(II) ; Structure ; MAPLE ; CHARDI ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: News about Binuclear Oxoferrates(II) [1].By “reaction with the wall” of the Fe-cylinders used here we synthesized the new oxoferrates(II) Cs6[Fe2O5], Cs3.5Rb2.5[Fe2O5] and Rb4K2[Fe2O5] in the form of red single crystals. The structure elucidation via four-circle-diffractometer data shows that the new oxoferrates(II) are isotypic with Cs2(Cs0.35K1.65)K2 [Fe2O5]. In the structure we have isolated binuclear groups [(O1)2Fe - O(2) - Fe(O1)2]6-. Structure refinements is possible in the centrosymmetrial space group C2/m as well as in the space groups C2 and Cm without centre of symmetry.The existence of two further oxoferrates(II) Cs6-xRbx[Fe2O5] and Cs6-xKx[Fe2O5] which can be described as solid solutions was confirmed by power-data.
    Notes: Durch “Reaktion mit der Wand” der eisernen Reaktionsgefäße wurden die neuen zweikernigen Oxoferrate(II) Cs6[Fe2O5], Cs2(Cs1,5Rb0,5)Rb2 [Fe2O5] und Rb4K2[Fe2O5] in Form von granatroten Einkristallen dargestellt. Die Strukturaufklärung mittels Vierkreisdiffraktometerdaten bestätigt die Isotypie zu Cs2(Cs0,35K1,65)K2 [Fe2O5]. Es liegen isolierte zweikernige Baugruppen [(O1)2Fe - O(2) - Fe(O1)2]6- vor. Strukturverfeinerung ist sowohl in der zentrischen Raumgruppe C2/m als auch in den azentrischen Raumgruppen C2 und Cm möglich, eine eindeutige Festlegung ist noch nicht möglich.Die Existenz zweier weiterer Mischkristalle, Cs6-xRbx[Fe2O5] und Cs6-xKx[Fe2O5], wurde mit Pulver-Daten belegt.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936190132
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  • 4
    Electronic Resource
    Electronic Resource
    Zur Überwindung von Vorurteilen: Das erste basische Oxoindat, Na26O3[InO4]4Professor Wilhelm Preetz zum 60. Geburtstage gewidmet (1994)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 1179-1184 
    Details
    ISSN: 0044-2313
    Keywords: New basic Oxoindate(III): Na26O3[InO4]4 ; Structure ; MAPLE ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The First Basic Oxoindate: Na26O3[InO4]4For the first time Na26O3[InO4]4 was obtained by annealing intimate mixtures of Na2O, CdO and elemental In (molar ratio 3.5:1.0:2.0) in closed Ni-cylinders (30 days, 600°C) in form of yellow single crystals. The structure determination by four circle diffractometer data (MoKα, 921 out of 921 Io(hkl), R = 2.53, Rw = 2.18%) confirms the space group 143d (cubic) with a = 1 427.37 pm and Z = 4. All kation are surrounded by tetrahedron of O2-. In3+ is coordinated with O(1) and O(2) (without O(3)) only. There are „isolated“ [InO4]-tetrahedra. The Madelung Part of Lattice Energy, MAPLE, the Mean Fictive Ionic Radii, MEFIR, Effective Coordination Numbers, ECoN, and Charge Distribution, CHARDI, are calculated.
    Notes: Beim Tempern inniger Gemenge von Na2O, CdO und elementarem In (3,5:1,0:2,0) in verschlossenen Ni-Zylindern (30 Tage, 600°C) erhielten wir gelbe Einkristalle von Na26O3[InO4]4. Die Strukturaufklärung (Vierkreisdiffraktometerdaten, MoKα, 921 von 921 Io(hkl), R = 2,53, Rw = 2,18%) erfolgte in der Raumgruppe 143d (kubisch) mit a = 1 427,37 pm und Z = 4. Alle Kationen sind tetraedrisch von O2- umgeben; In3+ jedoch nur von O(1) und O(2) und nicht von O(3). Strukturcharakteristisch sind die „Inseln“ [InO4], auffallend die C.N. 8 für O(3). Der Madelunganteil der Gitterenergie, MAPLE, die Mittleren Fiktiven Ionenradien, MEFIR, Effektive Koordinationszahlen, ECoN, sowie die Ladungsverteilung, CHARDI, werden berechnet.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19946200709
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  • 5
    Electronic Resource
    Electronic Resource
    Das erste Oxothallat(III) vom Formeltyp AA4′[MO4]: CsK4[TlO4] (1994)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 777-780 
    Details
    ISSN: 0044-2313
    Keywords: New Oxothallate(III) ; Structure ; MAPLE ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The First Oxothallate(III) with the Formula Type AA4′[MO4]: CsK4[TlO4]For the first time CsK4[TlO4] was obtained by heating intimate mixtures of K2O, CdO and CsTl (molar ratio 3.1:1.0:1.0) in closed Ag-cylinders (25 days, 450°C) in form of yellow, transparent single crystals. The structure determination by four circle diffractometer data (MoKα, 1922 out of 2 094 Io(hkl), R = 2.98, Rw = 2.49) confirms the space group Pbca with lattice constants a = 1 192.1 pm; b = 685.7 pm; c = 2 143.5 pm; Z = 8. The structure is isotypic with Na5[GaO4]. The Madelung Part of Lattice Energy, MAPLE, the Mean Fictive Ionic Radii, MEFIR, Effective Coordination Numbers, ECoN, and Charge Distribution, CHARDI, are calculated.
    Notes: Beim Tempern inniger Gemenge von K2O, CdO und CsTl (3,1:1,0:1,0) in verschlossenen Ag-Zylindern (25 Tage, 450°C) erhielten wir gelbe, transparente Einkristalle von bisher unbekanntem CsK4[TlO4]. Die Strukturaufklärung (Vierkreisdiffraktometerdaten, MoKα, 1922 von 2094 Io(hkl), R = 2,98%, Rw = 2,49%) erfolgte in der Raumgruppe Pbca mit den Gitterkonstanten: a = 1 192,1 pm; b = 685,7 pm; c = 2 143,5 pm; Z = 8. Es liegt Isotypie zu Na5[GaO4] vor. Der Madelunganteil der Gitterenergie, MAPLE, die Mittleren Fiktiven Ionenradien, MEFIR, Effektive Koordinationszahlen, ECoN, sowie die Ladungsverteilung, CHARDI, werden berechnet.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19946200502
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  • 6
    Electronic Resource
    Electronic Resource
    Oxydation intermetallischer Phasen: K4{Na2[Tl2O6]} aus NaTl und K2O2 (1994)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 781-785 
    Details
    ISSN: 0044-2313
    Keywords: Oxothallate(III) ; Preparation ; Structure ; MAPLE ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Oxidation of Intermetallic Phases: K4{Na2[Tl2O6]} from NaTl and K2O2The hitherto unknown K4{Na2[Tl2O6]} was prepared in form of transparent, yellow single crystals from NaTl and KO1,08 (molar ratio 1:1.3; sealed Ag-cylinder; 450°C, 30 d). The structure determination (four-circle diffractometer, MoKα, 1 280 out of 1 523 Io(hkl), R = 5.75%, Rw = 4.58%) confirms the space group P21/c with a = 641.3 pm, b = 691.1 pm, c = 1188.5 pm, β = 95.69° and Z = 2. As characteristic building units of the structure there are doubles of tetrahedra of [Tl2O6] and [Na2O6]. The compound is isotypic with Cs6[In2O6] and Rb6[Tl2O6]. The Madelung Part of Lattice Energy, MAPLE, the Mean Fictive Ionic Radii, MEFIR, Effective Coordination Numbers, ECoN, and Charge Distribution, CHARDI, are calculated.
    Notes: Bisher unbekanntes K4{Na2[Tl2O6]} wurde durch Oxydation von NaTl mit KO1,08 (1:1,3; geschlossener Ag-Zylinder; 450°C; 30 Tage) in Form transparenter, gelber Einkristalle dargestellt. Die Strukturaufklärung (Vierkreisdiffraktometerdaten, MoKα, 1 280 von 1 523 Io(hkl), R = 5,75%, Rw = 4,58%) erfolgte in der Raumgruppe P21/c mit a = 641,3 pm, b = 691,1 pm, c = 1 188,5 pm, β = 95,69° und Z = 2. Charakteristisches Motiv sind über Kanten verknüpfte, von ihresgleichen „isolierte“ Tetraederdoppel [Tl2O6] und [Na2O6]. Die Verbindung ist isotyp zu Cs6[In2O6] und Rb6[Tl2O6]. Der Madelunganteil der Gitterenergie, MAPLE, die Mittleren fiktiven Ionenradien, MEFIR, Effektive Koordinationszahlen, ECoN, sowie die Ladungsverteilung, CHARDI, werden berechnet.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19946200503
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