一种新型金属铱(Ⅲ)类配合物磷光材料的合成及性能研究  

Synthesis and Properties of a Phosphorescent Iridium(Ⅲ) Complex

作　　者：黄嘉[1] 蒋亚东[1] 唐先忠[1] 杜晓松[1] 毕娟[2] 

机构地区：[1]电子科技大学光电信息学院、电子薄膜与集成器件国家重点实验室,成都610054 [2]电子科技大学计算机科学与工程学院,成都610054

出　　处：《无机化学学报》2009年第3期501-505,共5页Chinese Journal of Inorganic Chemistry

基　　金：国家高技术研究发展计划资助项目(No.2002AA325110)

摘　　要：以间硝基苯甲酸、邻氨基苯硫酚为初始原料,合成了一种2-(间硝基-苯基)苯并噻唑配体,并通过与铱的无水三氯化物配合,合成了一种新型的金属铱髥类配合物(m-NO2-bt)2Ir(acac),对产物进行了核磁共振谱、红外光谱、质谱和元素分析等结构表征及溶解性、热稳定性能和紫外吸收光谱、荧光光谱等发光性能的研究。结果表明,该配合物在二甲亚砜、三氯甲烷等有机溶剂中具有良好的溶解性能。热重分析表明,该配合物分解温度在346℃,具有较高的热稳定性。配合物在紫外吸收光谱图上的250～320nm处出现了强的配体自旋允许的单重态π-π*跃迁吸收峰,在400～530nm处出现了配合物分子内金属铱到配体的单重态和三重态电荷跃迁吸收峰(1MLCT和3MLCT),同时配合物(m-NO2-bt)2Ir(acac)在荧光光谱上596.5nm处出现了较强的黄光发射。可见,配合物(m-NO2-bt)2Ir(acac)是一种具有较大应用前景的新型铱髥类配合物有机磷光材料。A new phosphorescent 2-（meta-nitryl-phenyl）-benzothiazolate Iridium（Ⅲ） acetylacetone complex （m-NO2-bt）2Ir （aeac） is synthesized by reaction of 2-（meta-nitryl-phenyl）-benzothiazolate with Iridium trichloride anhydrate 2-（meta-nitryl-phenyl）-benzothiazolate, the ligand of the complex, is prepared with meta-nitrobenzoic acid and 2- aminothiophenol as raw materials at the beginning. Then the complex is characterized by ^1H NMR, FTIR, Mass spectrometry and Elemental analysis. Solubility, Thermogravitometric analysis, UV-Vis absorption and Photoluminescenee of the complex are also investigated. The results indicate that the complex have a better solubility in common organic solvents such as dimethyl-sulfoxide and chloroform. The TGA thermograms show that the complex （m-NO2-bt）2Ir （acac） have a better performance in thermostability and the decomposition temperature almost up to 346 ℃. The absorption spectrum of the complex shows intense high energy transitions π-π^＊ from 250 nm to 320 nm, as well as comparatively low energy and broad singlet and triplet metal to ligand charge-transfer （^1MLCT and ^3MLCT） from 400 nm to 530 nm, and the complex also gives rise to a strong yellow photoluminescence with a peak at 596.5 nm. This Iridium（Ⅲ） complex （rn-NO2-bt）2Ir（acac） is a promising organic phosphorescent material for its excellent performance.

关 键 词：铱(Ⅲ)配合物 磷光材料 合成 性能 

分 类 号：O614.825[理学—无机化学]