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  • Chemistry  (22)
  • General Chemistry  (6)
  • 1975-1979  (13)
  • 1970-1974  (9)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 372 (1970), S. 87-99 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The crystal structures of BaSi2, SrSi2 and of a new modification of CaSi2 are described. The Si arrangements in these structures are discussed. There are Si4 tetrahedrons in BaSi2, a Sin threedimensional framework in SrSi2 and twodimensional corrugated sheets of Si hexagons in CaSi2.
    Notes: Die Kristallstrukturen von BaSi2 und SrSi2 werden beschrieben. Von CaSi2 wurde eine neue Modifikation aufgefunden. Die in den 3 Phasen nachgewiesenen Si-Verbände (Si4-Tetraeder im BaSi2, Sin-Raumnetzgerüst im SrSi2 und Sin-Schichten im CaSi2) werden vergleichend diskutiert.
    Additional Material: 6 Ill.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 372 (1970), S. 325-331 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The ternary disilicides of group-II elements Ca1-xSrxSi2 und Sr1-xBaxSi2 are prepared and crystallographically investigated. In the quasibinary system CaSi2—SrSi2 the structures of the Ca-rich phases can be described as stacks of twodimensional corrugated sheets of Si hexagons. The phases Sr1-xBaxSi2 with X = 0.2 to X = 1.0 crystallize in the structure type of BaSi2 with isolated Si4 tetrahedrons. There in no miscibility between CaSi2 and BaSi2 in the solid phase.
    Notes: Die ternären Erdalkalidisilicide der Stöchiometrie Ca1-xSrxSi2 und Sr1-xBaxSi2 wurden dargestellt und röntgenographisch charakterisiert. Im quasibinären Schnitt CaSi2—SrSi2 wurden im Ca-reichen Teil Phasen erhalten, deren Strukturen sich als Stapelvarianten mit zweidimensionalen, gewellten Si-Sechsecknetzen erwiesen. Im System Sr1-xBaxSi2 tritt der Strukturtyp des BaSi2 mit isolierten Si4-Tetraedern von x = 0,2 bis x = 1,0 auf. Der quasibinäre Schnitt BaSi2—CaSi2 entspricht dem Zustandsdiagramm eines Zweistoffsystems ohne Mischkristallbildung.
    Additional Material: 4 Ill.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 403 (1974), S. 163-172 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Structural Chemistry of BaMg2X2 (X = Si, Ge, sn, Pb)The new compounds BaMg2X2 (X = Si, Ge, Sn, Pb) have been prepared and their structures have been determined. BaMg2Si2 and BaMg2Ge2 crystallize in the ThCr2Si2-type, BaMg2Sn2 and BaMg2Pb2 show two new atomic arrangements, which are layer variants of the former type.
    Notes: Die Verbindungen BaMg2X2 (X = Si, Ge, Sn, Pb) wurden dargestellt und strukturell untersucht. BaMg2Si2 und BaMg2Ge2 kristallisieren im ThCr2Si2-Typ während BaMg2Sn2 und BaMg2Pb2 jeweils neue Strukturtypen ausbilden. Diese lassen sich aber als Schichtvarianten an den ThCr2Si2-Typ anschließen.
    Additional Material: 6 Ill.
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  • 4
    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.
    Additional Material: 5 Ill.
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  • 5
    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.
    Additional Material: 3 Ill.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 441 (1978), S. 98-102 
    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 Cs2Sb4S7The first thioantimonite of Cesium has been synthesized and its crystal structure determined. The substance crystallizes monoclinic with spacegroup P21/c. The lattice constants are a = 1111.2(5) pm, b = 1227.1(5) pm, c = 1163.7(5) pm and ß = 97.60(5)°. There are four formula units in the unit cell. Sb-S chains are formed by trigonal SbS3 pyramids and ψ-trigonal SbS4 bipyramids.
    Notes: Als erstes Cäsiumthioantimonit wurde die Verbindung Cs2Sb4S7 aus wäßriger Sulfidlösung dargestellt und ihre Kristallstruktur aufgeklärt. Sie kristallisiert monoklin in der Raumgruppe P21/c mit den Gitterkonstanten: a = 1111,2(5) pm. b = 1227,1(5) pm, c = 1163,7(5) pm, ß = 97,60(5)°. Die Elementarzelle enthält 4 Formeleinheiten. Es liegen Sb-S-Kettenverbände vor, die aus trigonalen SbS3-Pyramiden und ψ-trigonalen SbS4-Bipyramiden gebildet werden.
    Additional Material: 2 Ill.
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  • 7
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The transition of the “ordered” anti-PbCl2 lattice in the anti-PbFCl lattice: The ternary phases ABX of the alkaline earths with main group IV elements (A = Ca, Sr, Ba; B = Mg; X = Si, Ge, Sn, Pb)The compounds CaMgX, SrMgX and BaMgX (X = Si, Ge, Sn, Pb) were synthesized and their structures determined. CaMgX and SrMgX crystallize in the “ordered” Anti-PbCl2-type and are therefore related to the binary compounds Ca2X(X = Si, Ge, Sn, Pb), which form the Anti-PbCl2-type too. The phases BaMgX build up the Anti-PbFCl-structure. The relations of these two different structures are discussed in respect to the radii of the components.
    Notes: Die Verbindungen CaMgX, SrMgX und BaMgX (X = Si, Ge, Sn, Pb) wurden dargestellt und strukturell untersucht. Die Phasen CaMgX und SrMgX kristallisieren im „geordneten“ Anti-PbCl2-Typ und stehen damit strukturell in direktem Zusammenhang zu den im Anti-PbCl2-Gitter kristallisierenden binären Verbindungen Ca2X (X = Si, Ge, Sn, Pb). Die Phasen BaMgX bilden dagegen den Anti-PbFCl-Typ aus. Das unterschiedliche strukturelle Verhalten wird anhand von Radienkriterien diskutiert.
    Additional Material: 3 Ill.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 425 (1976), S. 67-80 
    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.
    Additional Material: 6 Ill.
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 426 (1976), S. 205-214 
    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.
    Additional Material: 12 Ill.
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 456 (1979), S. 87-94 
    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.
    Additional Material: 3 Ill.
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