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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 295 (1958), S. 262-267 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The molar heat of gaseous H2S2 at room temperature has been determined by calorimetric measurements: \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm C}_{\rm p}^{{\rm 25}} = 12.29 \pm 0.12({\rm cal}{\rm ./mole}/^ \circ {\rm C}). $$\end{document} Comparison of this value with the molar heat calculated statistically without regard of inner rotation around the S—S-axis allows to estimate the mean height of the potential barrier of the hindered inner rotation: V0 = 2.7 kcals./mole.
    Notes: Die Molwärme des gasförmigen H2S2 wurde calorimetrisch bei Zimmertemperatur zu \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm C}_{\rm p}^{{\rm 25}} = 12,29 \pm 0,12({\rm cal} \cdot {\rm Mol}^{{\rm - 1}} \cdot {\rm Grad}^{{\rm - 1}}) $$\end{document} bestimmt.Durch Vergleich dieser Größe mit der inzwischen von uns statistisch ohne den Anteil der Inneren Rotation berechneten Molwärme läßt sich die mittlere Höhe der die Innere Rotation um die S—S-Bindung behindernden Potentialschwellen näherungsweise zu V0 = 2,7 kcal · Mol-1 ermitteln.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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