کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1327553 977489 2009 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Si-Fluoro substituted quasisilatranes (N → Si) FYSi(OCH2CH2)2NR
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Si-Fluoro substituted quasisilatranes (N → Si) FYSi(OCH2CH2)2NR
چکیده انگلیسی

The reaction of fluorosilanes XYSiF2 (X = Y = F; X = F, Y = Ph; X = Ph, Y = Me) with diethanolamines and their O-trimethylsilyl derivatives affords novel Si-fluoro substituted quasisilatranes 3, 5 and 9. These compounds were characterized by the multinuclear NMR spectroscopy and X-ray diffraction analysis. Experimental and theoretically calculated electron density distribution functions in crystal structure of 9 have shown that the N → Si coordination bond corresponds to polar bond with pronounced ionic contribution. Calculated N → Si bond order in the compound 9 does not exceed 1/3 of the normal Si–N bond. A strong N → Si coordination bond exists in compounds 3, 5 and 9 the length of which varies in the range 1.98–2.175 Å.

The title compounds were obtained by the reaction of fluorosilanes XYSiF2 with diethanolamines or their O-trimethylsilyl derivatives. The quasisilatranes 3, 5 and 9 were characterized by the multinuclear NMR spectroscopy, X-ray diffraction method and quantum chemical calculations.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Organometallic Chemistry - Volume 694, Issue 5, 1 March 2009, Pages 607–615
نویسندگان
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