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Per(γ-trifluoropropyl)octasilsesquioxane

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Abstract

Per(γ-trifluoropropyl)octasilsesquioxane was prepared by hydrolytic polycondensation of γ-trifluoropropyltrichlorosilane in dilute solutions in various organic solvents. The mechanism of formation of the silsesquioxane core in the course of polycondensation was studied by gas chromatography-mass spectrometry. The optimal synthesis conditions were determined from these data. The target product was characterized by 1H, 13C, 19F, and 29Si NMR, IR, UV, and Raman spectroscopy, and also by mass spectrometry and derivatography. Under electron impact, per(γ-trifluoropropyl)octasilsesquioxane, in contrast to all the previously known persubstituted octasilsesquioxanes resistant to electron impact (electron energy up to 3 keV), dissociates with cleavage of the polyhedral silsesquioxane core and formation of ions with a more rigid structure of homohexasilsesquioxane and hexasilsesquioxane.

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Authors and Affiliations

  1. Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

    V. I. Lavrent’ev

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  1. V. I. Lavrent’ev
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Translated from Zhurnal Obshchei Khimii, Vol. 74, No. 8, 2004, pp. 1285–1291.

Original Russian Text Copyright © 2004 by Lavrent’ev.

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Lavrent’ev, V.I. Per(γ-trifluoropropyl)octasilsesquioxane. Russ J Gen Chem 74, 1188–1193 (2004). https://doi.org/10.1007/s11176-005-0136-y

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  • DOI: https://doi.org/10.1007/s11176-005-0136-y

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