摘要
利用2-苯基吡啶(ppy)、三水合氯化铱(IrCl3·H2O)和对乙烯基苯甲酸(VBA)配位,得到铱配位物Ir(ppy)2(VBA),并通过元素分析、FTIR光谱及1H NMR谱对其进行了结构表征,此外还研究了其吸收光谱和光致发光光谱.结果表明:配合物在400nm和450nm处存在单重态和三重态的吸收峰,在528nm处有较强的金属配合物三重态的磷光发射峰,显示为一种绿色磷光材料.
In this paper, a new iridium pyridine complex Ir(ppy)2(VBA) is synthesized from the reaction of 2-phenylpyridine, 4-vinylbenzoic acid and iridium trichloride hydrate. The complex is characterized with elemental analysis, FTIR, and ^1H NMR. The complex shows strong 1MLCT (singlet metal to ligand chargetransfer) and 3MLCT (triplet metal to ligand charge-ransfer) absorption at 400 and 450 nm, respectively. It also exhibits a strong photoluminescence at 528 nm in Dichloromethane. These results suggest that the complex is a promising phosphorescent material.
出处
《宁波大学学报(理工版)》
CAS
2009年第2期251-254,共4页
Journal of Ningbo University:Natural Science and Engineering Edition
基金
浙江省自然科学基金(Y407288)
硅材料国家重点实验室访问学者基金(200602)
宁波市自然科学基金(2006A610066)
宁波大学科研基金(XK200570)
关键词
磷光材料
重金属配合物
三重态
phosphorescent material
heavy metal complex
triplet