کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9577976 | 1505203 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Infrared spectroscopic identification of the methylsilylidyne (SiCH3, XÂ 2Aâ³) and the silenyl (H2CSiH, XÂ 2Aâ²) radicals in methane-silane matrices
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The methylsilylidyne (SiCH3, X 2Aâ³) and the silenyl (H2CSiH, X 2Aâ²) radicals were identified via infrared spectroscopy in low temperature silane-methane matrices upon irradiation of the samples matrices with energetic electrons at 10 K. The ν4 and ν3 fundamentals of the methylsilylidyne species were detected at 1226 and 1371 cmâ1, whereas one band of the silenyl radical showed up at 822 cmâ1(ν6). These assignments were verified in partially deuterated matrices. Our studies suggest that these radicals are generated through radiolysis of silene (H2CSiH2, X 1A1) and its methylsilylene isomer (CH3SiH, X 1Aâ²). The new absorptions of two SiCH3 isomers can be utilized in future spectroscopic studies of chemical vapor deposition processes and in astronomical searches of silicon-bearing organometallic molecules to better understand the chemistry of the circumstellar envelope of the carbon star IRC + 10216.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics Letters - Volume 404, Issues 4â6, 21 March 2005, Pages 327-335
Journal: Chemical Physics Letters - Volume 404, Issues 4â6, 21 March 2005, Pages 327-335
نویسندگان
Chris J. Bennett, David Sillars, Yoshihiro Osamura, Ralf I. Kaiser,