期刊论文

Li Wen-Ying

中文

化学学报

0567-7351

2008

66

19

2141-2145

10.3321/j.issn:0567-7351.2008.19.009

致谢 感谢中国科学院长春应用化学研究所马东阁教授在光谱数据测试方面的帮助.

本校为第一且通讯机构

合成了一系列含有吡咯亚胺基为辅助配体的2-苯基吡啶铱配合物[(ppy)_2Ir(NN)](ppy=2-苯基吡啶),通过~1HNMR,MS,HRMS和元素分析对配合物结构进行了表征,并研究了合成配合物的反应条件、紫外吸收光谱、光致发光光谱及铱配合物荧光量子产率.结果表明,在无水乙酸钠、二氯甲烷溶液中,室温反应12h可获得较高的产率.通过改变吡咯亚胺类配体中的取代基,该类配合物在507～606nm之间具有不同的发光波长,实现了从绿光到红光的转变.所有的铱配合物在二氯甲烷溶液(空气中)表现出较高的量子效率(0.25～0.95).

A series of new iridium complexes bearing pyrrylimine ligands, [(ppy)2Ir(N^N)] (ppy=2-phenylpyridine), were synthesized and characterized by 1H NMR, mass spectroscopy and elemental analysis. The reaction conditions of synthesis, UV-Vis absorption, photoluminescence and quantum efficiencies of the complexes were investigated. The results showed that the iridium complexes were obtained in good yields at room temperature using NaOAc as a base in dichloromethane. By changing the substituents in the pyrrylimine ligands, these complexes would have a range of luminescence wavelength from 507 to 606 n...