本研究合成了[Ir(dfppy)2(HDPA)]PF6+、[Ir(dfppy)2(MDPA)]PF6+、[Ir(fppy)2(HDPA)]PF6+、[Ir(fppy)2(MDPA)]PF6+、[Ir(ppy)2(MDPA)]PF6 + (dfppy=2-(2,4-difluorophenyl)pyridine; fppy=2-(4-fluorophenyl)pyridine; ppy=2-phenylpyridine; HDPA=2,2’-dipyridylamine; MDPA=N-methyl- dipyridylamine)等五個混配基型有機金屬錯合物，以X-ray繞射、MS、IR和NMR光譜鑑定其組成及結構，並且研究探討當Ligand上取代基數目不同時是否改變光物理及電化學性質。這五種錯合物在紫外光區觀察到的強吸收皆為ππ*過渡吸收；靠近可見光區的中度吸收為自旋允許的電荷轉移過度吸收，而在吸收拖尾處有消光係數很小之微弱吸收，應是屬於自旋禁制的電荷轉移過渡。
由化學光譜測試結果發現，經由改變氟取代基的數目，可以微調錯合物的放光波長。當ppy苯環上的氟取代基增多時，會使錯合物的放光波長往短波長方向移動，也就是藍位移現象，因此我們成功改良之前所研發出來的錯合物，得到了發出更純藍光的發光材料。

This research synthesized five cation transition metal complexes. The synthesis, X-ray crystal structure, luminescence, and the electrochemical properties of five five Ir(Ⅲ) cation transition metal complexes, [Ir(dfppy)2(HDPA)]PF6+ (1)、[Ir(dfppy)2(MDPA)]PF6+ (2)、[Ir(fppy)2(HDPA)]PF6+ (3)、[Ir(fppy)2(MDPA)]PF6+ (4)、[Ir(ppy)2(MDPA)]PF6 + (5) (dfppy = 2-(2,4-difluorophenyl)pyridine; fppy = 2-(4-fluorophenyl)pyridine; ppy=2-phenylpyridine; HDPA = 2,2’-dipyridylamine; MDPA = N-methyl- dipyridylamine). Each complex exhibits strong absorption in the UV region, due to spin-allowed ππ* transitions, and moderately intense bands in the visible region, due to spin-allowed MLCT transition. In addition, weaker absorption bands and tailing at lower energy are corresponding to spin-forbidden MLCT transitions.
According to the luminescence properties, we discovered that when increase the number of fluoric substituent group, the max emission wavelength of complex decrease. That is blue shift phenomenon. Thus we successfully obtained the complexes which emit more pure blue light.

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