Synthesis of Silicon-Phthalocyayne Polymers and Spectroscopic Investigation on the Inter-ring Interactions

酞菁配合物具有良好的环境稳定性，是光功能材料中最受欢迎和最有希望的染料。众所周知，酞菁硅（SiPc）易于聚合，因此研究聚合物链上的相互作用对植物叶片光合系统的能量迁移现象起着非常重要的作用。在本项目中，我们通过电子光谱和时间分辨EPR光谱研究了这些聚合物的合成和分子中Pc环之间的相互作用。SiPcs的氩基样品的电子能谱显示出非常奇特的空穴燃烧光谱行为，表明即使在液氦温度下，环也存在自由旋转。时间分辨EPR研究澄清了激发态中电子的离域。

Phthalocyanine(Pc) complexes are the most polular and hopeful dye stuffs among other photo-functional materials for their environmental stability. It is know that silicon phthalocyanine(SiPc)s can be polymerized easily, then it is of interest to investigate interring interactions on the polymer chain because such types of interactions play very important roles in the energy migration phenomena in photosynthetic systems of plant leaves.In this project we have investigated synthesis of these polymers and the interactions between Pc rings in the molecules by means of electronic spectra and time-resolved EPR spectra. The electronic spectra for argon matrix sample of SiPcs revealed very peculiar behavior of hole burning spectra which suggests free rotation of the rings even at liquid helium temperature. The time-resolved EPR study clarified the delocalization of electrons in the excited triplet states.