Instituto de Química Orgánica General, Centro Superior de Investigaciones Científicas (CSIC), C/ Juan de la Cierva, 3, 28006, Madrid, Spain.
Beilstein J Org Chem. 2012;8:1071-90. doi: 10.3762/bjoc.8.119. Epub 2012 Jul 12.
Control over molecular motion represents an important objective in modern chemistry. Aromatic azobenzenes are excellent candidates as molecular switches since they can exist in two forms, namely the cis (Z) and trans (E) isomers, which can interconvert both photochemically and thermally. This transformation induces a molecular movement and a significant geometric change, therefore the azobenzene unit is an excellent candidate to build dynamic molecular devices. We describe selected examples of systems containing an azobenzene moiety and their motions and geometrical changes caused by external stimuli.
控制分子运动是现代化学的一个重要目标。芳香族偶氮苯是分子开关的理想候选者,因为它们可以以两种形式存在,即顺式(Z)和反式(E)异构体,可以通过光化学和热化学两种方式相互转化。这种转变会引起分子运动和显著的几何变化,因此偶氮苯单元是构建动态分子器件的理想候选者。我们描述了含有偶氮苯部分的选定系统的例子,以及它们在外源刺激下的运动和几何变化。