本文合成了一种酞菁钴 (Ⅱ )化合物 ,研究了它在溶液中与咪唑形成轴向配合物的吸收光谱变化 ,并计算了配合物的组成及稳定常数 .用旋涂法制备了染料薄膜 ,通过配合物的吸收光谱与酞菁钴 (Ⅱ )的比较 ,光谱峰显著变窄 ,吸收峰红移 ,大大改善了染料的光学性质 . In this paper, a cobalt (II) phthalocyanine compound was synthesized and its absorption spectra change in the axial complex with imidazole was investigated. The composition and stability constants of the complexes were calculated. The dye films Compared with the cobalt phthalocyanine (Ⅱ), the absorption spectrum of the complex obviously narrowed and the red shift of the absorption peak significantly improved the optical properties of the dye.