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一价铜配合物因具有丰富的光物理性质和良好的潜在应用而被广泛研究.文中选用2-(2-苯并咪唑基)-6-甲基吡啶(Hbmp)作为二齿螯合配体,与溴化亚铜和三苯基膦进行分子组装反应,合成得到一单核的一价铜溴化物[Cu(Hbmp)(PPh3)Br](1),并对其晶态结构特征和固态光致发光性能进行了研究.研究表明:配合物1的中心铜原子采取四配位方式,分别与一个溴、一个磷和两个氮原子相连,这四个配位的原子共同组成一个变型的四面体构型,这些相邻的配合物分子又通过Hbmp配体间存在的弱π-π作用发生有序堆叠排列并形成一维的链状结构.配合物1在室温下表现出强的固态光致磷光发射,其磷光发射主要来源于金属到配体和卤素到配体两种电荷转移跃迁.
Monovalent copper complexes have been extensively studied due to their abundant photophysical properties and their potential applications.In this paper, 2- (2-benzimidazolyl) -6-picoline (Hbmp) was chosen as the bidentate chelate ligand (Cu (Hbmp) (PPh3) Br] (1) was synthesized by molecular assembly reaction with cuprous bromide and triphenylphosphine to synthesize a mononuclear monovalent copper bromide [1] and its crystalline structure and solid state Photoluminescence properties were studied.The results show that the central copper atom of the complex 1 takes a four-coordination mode and is connected with one bromine, one phosphorus and two nitrogen atoms respectively, and the four coordination atoms form a modified Tetrahedral configuration, these adjacent complexes through the Hbmp ligands exist between the weak π-π effect of the orderly stacking arrangement and the formation of one-dimensional chain structure. Complex 1 at room temperature showed a strong solid Photo-phosphorescent emission, the phosphorescent emission mainly from metal-to-ligand and halogen-to-ligand two charge transfer transitions.