一种五配位硅配合物的两种修饰。
Two modifications of a five-coordinate silicon complex.
作者信息
Böhme Uwe, Foehn Ines C
机构信息
Institut für Anorganische Chemie, Technische Universität Bergakademie Freiberg, Leipziger Strasse 29, 09596 Freiberg, Germany.
出版信息
Acta Crystallogr C. 2007 Nov;63(Pt 11):o613-6. doi: 10.1107/S0108270107045465. Epub 2007 Oct 13.
TBPY-5-34-(Butane-1,4-diyl)(2-{[1-(2-oxidophenyl)ethylidene-kappaO]amino-kappaN}ethanolato-kappaO)silicon, C(14)H(19)NO(2)Si, crystallizes in two modifications. The monoclinic form, (IIm), was obtained by crystallization over a period of 2 d at room temperature; the orthorhombic form, (IIo), crystallized overnight at 248 K. The main difference between the two molecular structures involves the angles in the equatorial plane of the trigonal bipyramid around silicon. Form (IIm) has an O-Si-O angle of ca 121 degrees and O-Si-C angles of ca 121 and 116 degrees . In form (IIo), the corresponding angles are approximately 123, 124 and 111 degrees . There are also significant differences in the packing: (IIm) shows pi stacking, whereas (IIo) does not.
TBPY - 5 - 34 -（丁烷 - 1,4 - 二亚基）（2 - {[1 -（2 - 氧化苯基）亚乙基 - κO]氨基 - κN}乙醇酸根 - κO）硅，C(14)H(19)NO(2)Si，以两种变体形式结晶。单斜晶型（IIm）是在室温下经过2天结晶得到的；正交晶型（IIo）是在248 K下过夜结晶得到的。两种分子结构之间的主要差异涉及硅周围三角双锥赤道平面内的角度。（IIm）型的O - Si - O角约为121度，O - Si - C角约为121度和116度。在（IIo）型中，相应的角度约为123度、124度和111度。堆积方式也存在显著差异：（IIm）表现出π堆积，而（IIo）则没有。
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