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Thermal analysis of new hydrazinium(2+) hexafluoroantimonate

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Abstract

Hydrazinium(2+) hexafluoroantimonate was prepared by the reaction of N2H6F2 with an excess of SbF5 in anhydrous HF as solvent. The compound was characterized by chemical analysis and vibrational spectra. The X-ray powder photograph was indexed on the basis of a monoclinic cell witha=8.22(2),b=10.04(3),c=9.51(2) Å,β=97.2(2)° andV=780 Å3.

The thermal decomposition study of N2H6(SbF6)2 showed that it decomposed to gaseous components through an intermediate, a mixture of N2H5SbF6 and NH4SbF6. In the DSC curve, a strong endothermic effect and medium exothermic and endothermic effects were observed in the range 25–600°C.

Zusammenfassung

Mit der Reaktion von N2H6F2 mit einem Überschuss von SbF5 in wasserfreiem HF als Lösungsmittel wurde Hydrazinium(2+)hexafluoroantimonat hergestellt. Die Verbindung wurde durch Elemetaranalyse und Schwingungsspektren charakterisiert. Röntgendiffraktionsaufnahmen ergaben ausgehend von einer monoklinen Zellea=8.22(2),b=10.04(3),c=9.51(2) Å,β=97.2° undV=780 Å3.

Die Untersuchung der thermischen Zersetzung von N2H6(SbF6)2 ergab, dass es sich diese Verbindung über eine Zwischenstufe, ein Gemisch aus N2H5SbF6 und NH4SbF6, in gasförmige Komponenten zersetzt. In der DSC-Kurve können im Bereich 25–600°C ein starker endothermer sowie mittelstarke exotherme und endotherme Effekte beobachtet werden.

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We thank Miss B. Sedej for the chemical analysis and the Research Community of Slovenia for financial support.

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Gantar, D., Rahten, A. Thermal analysis of new hydrazinium(2+) hexafluoroantimonate. Journal of Thermal Analysis 36, 553–558 (1990). https://doi.org/10.1007/BF01914508

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  • DOI: https://doi.org/10.1007/BF01914508

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