planar. Steric interactions from the large alkyl group, which adopts a propeller-like conformation, compress the FBO angle to 111(1)°, prevent intermolecular hydrogen bonds, and largely determine the crystal packing. As a result, the orientation of the FBO plane with respect to the three CSi bonds is disordered: in one orientation (occupancy 40%) the FBO plane eclipses one of the CSi bonds and in the
化合物(ME 2 PHSI)3 CBF(OH),由(ME的
水解制成2 PHSI)3 CBF 2,似乎是先充分表征organofluorohydroxyborane。
硼的配位几乎是平面的。来自大烷基的立体相互作用,采用螺旋桨状构象,将FBO角压缩至111(1)°,防止分子间氢键,并在很大程度上决定了晶体的堆积。结果,FBO平面相对于三个CSi键的方向是不规则的:在一个方向(占有率40%),FBO平面遮盖其中一个C bondsSi键,而在另一个方向(占有率60%) FBO平面旋转大约90°。