Photolysis of hexamethyldisilane at 206 nm |
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Authors: | S. Patzer N.L. Arthur P. Potzinger H.Gg. Wagner |
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Affiliation: | Max Planck Institut für Strömungsforschung, Bunsenstraβe 10, 37073, Göttingen, Germany |
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Abstract: | The photolysis of Me6Si2 at 206 nm results in two main decomposition processes: simple Si---Si bond breaking with a quantum yield of Φ = 0.21 ± 0.03, and Me3SiH elimination with the concomitant formation of Me2SiCH2 with Φ = 0.18 ± 0.01. There is also a minor decomposition channel with a very small quantum yield, Φ = (5.6 ± 0.2) × 10−3, which results in the formation of Me4Si and Me2Si. The main fate of the excited Me6Si2 molecule produced during photolysis is stabilization by collisional deactivation. The end products observed indicate that the reaction pathways followed by the main intermediates, Me3Si and Me2SiCH2, are the same as those found in the photolysis of Me4Si (Ahmed et al., J. Photochem. Photobiol. A: Chem. 86 (1995) 33). |
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Keywords: | Hexamethyldisilane Photolysis |
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