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  • Inorganic Chemistry  (2)
  • 1980-1984  (2)
  • 1983  (2)
Collection
Publisher
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  • 1980-1984  (2)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 504 (1983), S. 155-162 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Investigation of CuGaSe2 and CuGaTe2 under High PressureThe X-ray powder diffraction analysis at 300 K in dependence on the pressure gives a transition from the chalcopyrite-type to the NaCl structure for CuGaSe2 at 12.5 GPa and for CuGaTe2 at 8 GPa. The phase transition is associated with a discontinuity of the volume of 8.6 and 3.8%. These results were discussed in relation to other tetrahedrally coordinated compounds.
    Notes: Röntgenuntersuchungen bei 300 K in Abhängigkeit vom Druck ergaben, daß CuGaSe2 bei 12,5 GPa und CuGaTe2 bei 8 GPa von der Chalcopyrit-Struktur in die NaCl-Struktur übergehen. Dabei tritt ein Volumensprung von 8,6 bzw. 3,8% auf. Diese Ergebnisse werden im Zusammenhang mit Hochdruckuntersuchungen an anderen tetraedrisch koordinierten Verbindungen diskutiert.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 116 (1983), S. 1739-1750 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis of Stable Carbenium Salts from Cyclic Thioacetals - 1,3-Dithienium- and 1,3-Dithiolenium SaltsThe reaction of the 2-substituted 1,3-dithianes 1 (n = 3) and the analogous 1,3-dithiolanes 1 (n = 2) with sulfuryl chloride (2) with strict exclusion of moisture leads to the new 1,3-dithienium and 1,3-dithiolenium hydrogendichlorides 3, respectively. - Compounds 3 are extremely hygroscopic and hydrolyzable, can be, however, derivated with boron trifluoride diethyl etherate to the less sensitive tetrafluoroborates 5. Hydrolysis of 3a yields the two thiolesters 6a and 7a. The structure of 6a is confirmed by its synthesis from 1,3-propanedithiol (8) and benzoyl chloride (9).
    Notes: Umsetzung der 2-substituierten 1,3-Dithiane 1 (n = 3) bzw. der entsprechenden 1,3-Dithiolane 1 (n = 2) mit Sulfurylchlorid (2) unter strengem Feuchtigkeitsausschluß ergibt die neuen hydrolyseempfindlichen 1,3-Dithienium- bzw. 1,3-Dithiolenium-hydrogendichloride 3, die sich mit Bortrifluorid-Diethylether-Komplex in die weniger empfindlichen Tetrafluoroborate 5 überführen lassen. Hydrolyse von 3a ergibt die beiden Thiolester 6a und 7a. Konstitutionsbeweisend für 6a ist dessen Synthese aus 1,3-Propandithiol (8) und Benzoylchlorid (9).
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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