Synthesis,Crystal Structure,and Spectroscopic Characterization of the Borazine Derivatives [B{CH2(SiCl3)}NH]3 and [B{CH2(SiCl2CH3)}NH]3 |
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Authors: | Thomas J schke,Martin Jansen |
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Affiliation: | Thomas Jäschke,Martin Jansen |
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Abstract: | The borazine derivatives B, B′, B″‐tris[(trichlorosilyl)methyl]borazine [B{CH2(SiCl3)}NH]3 ( 1 ), and B, B′, B″‐tris[{dichloro(methyl)silyl}methyl]borazine [B{CH2(SiCl2CH3)}NH]3 ( 2 ) were prepared by reacting (Cl3Si)CH2(BCl2) ( 3 ) and [Cl2(CH3)Si]CH2(BCl2) ( 4 ) with hexamethyldisilazane (hmds), respectively. Both compounds, 1 and 2 crystallize in space group R3c with a = 1712.53(4), c = 1230.33(4) pm, Z = 6, R1 = 0.030, and a = 1713.8(2), c = 1258.7(2) pm, Z = 6, R1 = 0.034, respectively. According to the single crystal X‐ray diffraction analyses, the title compounds show a planar B3N3 six‐membered ring with B—N distances of 142.3(3) pm (point symmetry C3) and synfacial oriented substituents. The borazine derivatives have also been characterized by NMR and IR spectroscopy as well as by MS spectrometry. |
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Keywords: | Borazines Crystal structure Boron Silicon Single source precursor |
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