Zn(II) complexes using L_a and L_b were synthesized. The Z-isomers of studied complexes were isolated from the reaction mixture. The structure of these complexes was determined by NMR spectroscopy and X-ray diffraction analysis. The Z-isomers of complexes are present in two conformations. The change in hydrazo = azo equilibrium of the complexes is achieved by light-stimulated photoreaction. The phototautomerization is a reversible process. By changing the wavelength used to stimulate photoreaction, the change is achieved in the tautomeric reaction equilibrium state in the desired direction. The studied complexes have the characteristics of ON/OFF switches. It is possible to use UV–vis and fluorescence spectroscopy to clearly define ON and OFF states and to measure the response of signals induced by photostimulation.

合成了使用L _a和L _b的Zn（II）配合物。从反应混合物中分离出研究的配合物的Z-异构体。这些配合物的结构通过NMR光谱和X射线衍射分析确定。该ž-配合物的-异构体以两种构象存在。配合物的肼＝偶氮平衡的变化是通过光刺激的光反应实现的。光互变异构是可逆的过程。通过改变用于刺激光反应的波长，可以在互变异构反应平衡状态下按所需方向进行改变。所研究的复合物具有ON / OFF开关的特性。可以使用紫外可见光谱和荧光光谱清楚地定义开和关状态，并测量光刺激引起的信号响应。