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A new type of binuclear europlum β-diketone chelates Eum Y1-m(TTA)3 phen (0≤m≤1) and the influence of the proportion of Y on fluorescence intensity of the Eu-complexes were studied. It was found the proportion of Y3+ could affect the fluorescence properties and the film formation seriously. only m≥0.5.Y3+ could increase the luminescent intensity and improve the film formalion. As a resull. three new binuclear europium β-diketone chelales consisted of Eu, Y1-m (TTA)3phen (m=0.9. 0.7 and 0.5) were designed and synthesized. Their structures were elucidated by IR. UV. DSC and Elementary Analysis. Their PL properties were studied. The results showed that the three binuclear europium β-diketone chelates had better PL properties and film formation than Eu(TYA)3phen. They could emit sharply red light, and fluorescenl wavelength of them was all at 613nm (half bandwidth 10nm). They can be used as red organic electroluminescent materials (OELMs) in organic electrolminescent devices (OELDS).
A new type of binuclear europlum β-diketone chelates Eum Y1-m (TTA) 3 phen (0 ≦ m ≦ 1) and the influence of the proportion of Y on fluorescence intensity of the Eu-complexes were studied. It was found the proportion Y3 + could increase the luminescent intensity and improve the film formality. As a resull. three new binuclear europium β-diketone chelales consisted of Eu, Y1-m ( Their structures were elucidated by IR. UV. DSC and Elementary Analysis. Their PL properties were studied. The results showed that the three binuclear europium β-diketone chelates had (T = 0. 0.7 and 0.5) were designed and synthesized. They could be used as red organic electroluminescent materials (OELMs) in organic electroluminescent devices (OEL DS).