and selective protocol for the synthesis of new organofunctional silicon dendrons of the general formula EtOSi(CH2CH2SiMe2CH2CH2SiMe2R)3 (where R is an amine or epoxy substituent) has been developed. The title compounds have been efficiently obtained via Karstedt platinum‐catalysed hydrosilylation and linked to a glasssurface. Modified solid supports are successfully applied in immobilization of proteins
A Molecular Gyroscope Having Phenylene Rotator Encased in Three-spoke Silicon-based Stator
作者:Wataru Setaka、Soichiro Ohmizu、Chizuko Kabuto、Mitsuo Kira
DOI:10.1246/cl.2007.1076
日期:2007.8.5
A molecular gyroscope which has a phenylene rotator encased in three long siloxaalkane spokes was synthesized. The phenylene ring is observed by X-ray crystallography at three rotational positions around the 1,4-axis between 223–303 K. The area in which the phenylene ring is found is significantly reduced at 173 K owing to the deformation of a siloxaalkane spoke; the temperature-dependent phenylene disorder is reversible.
我们合成了一种分子陀螺仪,它的苯环旋转体被包裹在三条长长的硅氧烷辐条中。在 173 K 时,由于硅氧烷辐条发生形变,苯环所在的区域明显缩小;与温度有关的苯环紊乱是可逆的。