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  • 1975-1979  (13)
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  • 1
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Structure of Ternary Selenides of Magnesium with Indium and AluminiumThe compounds MgAl2Se4, MgIn2Se4 and Mg2Al2Se5 have been prepared and analytically characterized. They crystallize trigonal with axis see „Inhaltsübersicht“. The structures can be described as close-packed arrangements of anions, the cations occupying the tetrahedral and octahedral sites thus forming layer structures.
    Notes: Es wurden die Verbindungen MgAl2Se4, MgIn2Se4 und Mg2Al2Se5 dargestellt und analytisch gesichert. Sie kristallisieren trigonal mit den Daten: \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{rcl} {\rm MgAl}_{\rm 2} {\rm Se}_{\rm 4} :&&{\rm a} = 3,88 \pm 0,01{\rm \AA},\;{\rm c = 38,34} \pm 0,05{\rm \AA},\;{\rm R}3{\rm m} - {\rm C}_{{\rm 3v}}^{\rm 5} \\ {\rm MgIn}_{\rm 2} {\rm Se}_{\rm 4} :&&{\rm a} = 4,07 \pm 0,01{\rm \AA},\;{\rm c = 39,50} \pm 0,05{\rm \AA},\;{\rm R}3{\rm m} - {\rm C}_{{\rm 3v}}^{\rm 5} \\ {\rm MgAl}_{\rm 2} {\rm Se}_{\rm 5} :&&{\rm a} = 3,88 \pm 0,01{\rm \AA},\;{\rm c = 16,00} \pm 0,03{\rm \AA},\;{\rm P}\bar 3{\rm ml} - {\rm D}_{{\rm 3d}}^{\rm 3} . \\ \end{array} $$\end{document}Die Strukturen lassen sich auf dichteste Kugelpackungen der Selenanionen zurückführen, wobei durch eine spezielle Besetzung der Tetraeder- und Oktaederlücken Schichtstrukturen resultieren.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 437 (1977), S. 183-187 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Crystal Structure of (NH4)2Sb4S7(NH4)2Sb4S7 has been prepared and its structure determined. It crystallizes orthorhombic, space group Pbca, with \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm a = 1 133}{\rm .0(3) pm, b = 2625}{\rm .2(6) pm, c = 994}{\rm .0(3) pm}{\rm .} $$\end{document} Three distorted trigonal SbS3-pyramids are connected to a Sb3S3-ring in chair-conformation. These rings are bridged by further SbS3-pyramids to infinite chiralic chains.
    Notes: (NH4)2Sb4S7 wurde dargestellt und strukturell aufgeklärt. Es kristallisiert orthorhombisch, Raumgruppe Pbca, mit \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm a = 1 133,0(3) pm, b = 2625,2(6) pm, c = 994,0(3) pm}{\rm .} $$\end{document} Im Anionengitter sind jeweils 3 verzerrte trigonale SbS3-Pyramiden zu Sb3S3-Sechsringen in Sesselkonformation verknüpft. Diese Ringe sind über weitere SbS3-Pyramiden zu eindimensional unendlichen gewundenen Ketten verbunden.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 417 (1975), S. 11-18 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Alkali Beryllium Phosphates NaBePO4, KBePO4 and RbBePO4 were prepared by reaction of alkali polyphosphate with Be(OH)2 in the corresponding molten alkali sulfate. NaBePO4 is identical with the natural Beryllonit. KBePO4 and RbBePO4 are isotypic to the NH4LiSO4 structure. In the structure of KBePO4 there is a three-dimensional net of PO4 and BeO4 tetrahedra connected by common corners. For crystallographic data see “Inhaltsübersicht” and Tab.2.
    Notes: NaBePO4, KBePO4 und RbBePO4 lassen sich in den entsprechenden Alkalisulfatschmelzen durch Umsatz der Alkalipolyphosphate mit Be(OH)2 darstellen. Das NaBePO4 entspricht dem natürlich vorkommenden Beryllonit, während KBePO4 und RbBePO4 isotyp zum NH4LiSO4 kristallisieren. Die vollständige röntgenographische Strukturbestimmung des KBePO4 zeigte, daß ein Raumnetzverband von eckenverknüpften PO4- und BeO4-Tetraedern vorliegt. Die Kristallographischen Daten sind: orthorhombisch, Pna21, a = 8,30 ± 0,02 Å, b = 8,47 ± 0,02 Å, c = 5,00 ± 0,02 Å. Atomlagen vgl. Tab.2.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 439 (1978), S. 212-218 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Crystal Structure of K3(SH)TeS3K3(SH)TeS3 has been prepared and structurally characterized. It crystallizes cubic with a = 1270(2) pm, space group 143m. The SH- Ions are surrounded by an octahedron of K+ ions. The TeS32-. anions form flat trigonal pyramids with Te—S distances of 234.8(2) pm.
    Notes: Die Verbindung K3(SH)TeS3 wurde dargestellt und strukturell aufgeklärt. Sie kristallisiert kubisch mit a = 1270(2) pm in der Raumgruppe I4m. In der Struktur liegen SH-. Ionen vor, die oktaedrisch von Kaliumionen umgeben sing. Daneben werden flache TeS32-. Pyramiden mit Te—S-Abständen von 234,8(2) pm beobachtet.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 441 (1978), S. 93-97 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Crystal Structure of Rb2Sb4S7The first thioantimonite of rubidium has been synthesized and its crystal structure determined. The substance crystallizes triclinic with spacegroup P1. The lattice constants are a = 968.0(5) pm, b = 1193.4(5) pm, c = 723.1(5) pm, α = 87.68(5)°, β = 101.39(5)° and γ = 102.66(5)°. There are two formula units in the unit cell.
    Notes: Als erstes Rubidiumthioantimonit wurde aus wäßriger Sulfidlösung Rb2Sb4S7 dargestellt und seine Kristallstruktur aufgeklärt. Die Substanz kristallisiert triklin in der Raumgruppe P1 mit den Gitterkonstanten a = 968,0(5) pm, b = 1193,4(5) pm, c = 723,1(5) pm, α = 87,68(5)°, β = 101,39(5)° und γ = 102,66(5)°. Die Elementarzelle enthält 2 Formeleinheiten.
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  • 6
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Seleno- and Telluroarsenites, -antimonites, and -bismutitesThe new compounds NaAsSe2, NaSbSe2, NaSbTe2, and NaBiTe2 have been prepared and their structures determined. NaSbSe2, NaSbTe2, and NaBiTe2 build up the NaCl structure with the following lattice constants: NaSbSe2: a = 596.6(2) pm, NaSbTe2: a = 631.7(2) pm, NaBiTe2: a = 636.6(3) pm. NaAsSe2 crystallizes orthorhombic with a = 583 ± 1pm, b = 2427 ± 5 pm, c = 1182 ± 2 pm, Pbca. In the structure there are distorted trigonal AsSe3 pyramids which are connected by corners to chains.
    Notes: Die neuen Verbindungen NaAsSe2, NaSbSe2, NaSbTe2 und NaBiTe2 wurden dargestellt und strukturell aufgeklärt. NaSbSe2, NaSbTe2 und NaBiTe2 kristallisieren in der NaCl-Struktur mit folgenden Gitterkonstanten: NaSbSe2: a = 596,6(2) pm, NaSbTe2: a = 631,7(2) pm, NaBiTe2: a = 636,6(3) pm. NaAsSe2 kristallisiert orthorhombisch mit a = 583 ± 1 pm, b = 2427 ± 5 pm, c = 1182 ± 2 pm, Pbca. In der Struktur liegen Ketten aus eckenverknüpften trigonalen AsSe3-Pyramiden vor.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 414 (1975), S. 211-219 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Crystal Structure of KSbS2Red KSbS2 was prepared in a aqueous solution of KHS and Sb2S3 under mild hydrothermal conditions. For crystallographic data see „Inhaltsübersicht“. There are SbS2--chains, built up by ψ-trigonal bipyramids, which are connected by sharing edges. The K+-Ions between these chains have a nearly octaedric coordination.
    Notes: Rotes KSbS2 wurde aus wässerigen Lösungen von KHS und Sb2S3 unter milden hydrothermalen Bedingungen dargestellt und strukturell untersucht. Die kristallographischen Daten sind: monoklin, Raumgruppe C2/c—C2h6 a = 8,75 ± 0,01 Å, b = 8,98 ± 0,01 Å, c = 6,84 ± 0,01 Å β = 121,6° ± 0,1 4 Formeleinheiten in der Elementarzelle. Nach der vollständigen röntgenographischen Strukturaufklärung liegen SbS2--Kettenanionen vor, die aus über Kanten verknüpften ψ-trigonalen Bipyramiden aufgebaut sind. Zwischen diesen Ketten sitzen die Kaliumionen mit einer nahezu oktaedrischen Koordination.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 414 (1975), S. 220-230 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: K3SbS3 · 3 Sb2O3, an Oxothioantimonite with a Tube StructureOrange colored K3SbS3 · 3 Sb2O3 was prepared in an alkaline aqueous solution of K2S and Sb2S3. It crystallizes in thin hexagonal prisms. For crystallographic data see „Inhaltsübersicht“.There are Sb2O3-tubes in this structure. Inside these tubes are the K+-ions. Their charge is neutralized by SbS33--pyramides, which occupy positions between the Sb2O3 tubes.
    Notes: Aus stark alkalischer, wäßriger Lösung von K2S und Sb2S3 wurde orangefarbenes K3SbS3 · 3 Sb2O3 dargestellt. Die Verbindung bildet dünne, hexagonale Säulen aus. Ihre kristallographischen Daten sind: hexagonal, Raumgruppe P63—C66; a = 14,256 ± 0,005 Å, c = 5,621 ± 0,002 Å, c/a = 0,394; 2 Formeleinheiten in der Elementarzelle.Nach einer vollständigen röntgenographischen Strukturaufklärung liegen Sb2O3-Röhren längs der c-Achse vor, in deren Innenraum die Kaliumionen lokalisiert sind. Zwischen den Röhren finden sich SbS33--Pyramiden, die die Ladung der Kaliumionen ausgleichen und die Röhren miteinander verknüpfen.
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  • 9
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Chemistry of the Alkali Salts of the Main Group V Element TetrathioacidsThe anhydrous tetrathioantimonates of K+, NH4+, and Na+ crystallize cubic in the (NH4)3SbS4-structure type. The analogous tetrathioarsenates and -phosphates form the (NH4)3AsS4-structure type. In the formation of these two different structures the density of the atomic packing is essential.
    Notes: Die wasserfreien Tetrathioantimonate von K+, NH4+ und Na+ kristallisieren kubisch im (NH4)3SbS4-Typ, während bei den bisher bekannten Alkalitetrathioarsenaten und -phosphaten der (NH4)3AsS4-Typ beobachtet wird. Die Ausbildung der beiden unterschiedlichen Strukturtypen wird auf Packungseffekte zurückgeführt.
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  • 10
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Crystal Structure of SrCu2Sb2 and SrZnBi2SrCu2Sb2 and SrZnBi2 have been prepared and analytically and structurally characterized. SrCu2Sb2 crystallizes tetragonal in the CaBe2Ge2 structure type. SrZnBi2 has its own structure type. In both structures the transition metal atoms form with the semimetal atoms tetragonal pyramids, which are connected by common edges of the basis to twodimensional sheets. These sheets are separated in the case of SrCu2Sb2 by single sheets of strontium atoms, in the case of SrZnBi2 by double sheets of strontium atoms in which fourfold nets of Bi atoms are located.
    Notes: SrCu2Sb2 und SrZnBi2 wurden dargestellt, analytisch und strukturell charakterisiert.SrCu2Sb2 kristallisiert tetragonal (a = 4,51 ± 0,01 Å, c = 10,91 ± 0,02 Å, Raumgruppe P4/nmm, z = 2) im CaBe2Ge2-Typ. SrZnBi2 kristallisiert in einem eigenen Strukturtyp (tetragonal, a = 4,64 ± 0,01 Å, c = 21,96 ± 0,03 Å, Raumgruppe I4/mmm, z = 4). In beiden Strukturen bilden die Übergangsmetalle mit den Halbmetallen zweidimensional unendliche Pyramidenschichten aus, die im Falle des SrCu2Sb2 durch Erdalkalieinfachschichten, im Falle des SrZnBi2 durch Erdalkalidoppelschichten mit eingelagerten Bi-Vierecknetzen getrennt sind.
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