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联吡啶钌-稀土混合金属化合物的荧光性质 被引量:1

Luminescent Heterometallic Complexes of Ru-Ln
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摘要 用化合物1:Ru(bpy)2-BL(ClO4)2(bpy=2,2′-联吡啶,BL=N1,N4-二-(2-甲基-吡啶)-1,4-二苯胺)作为光敏染料和2-噻酚基乙酰丙酮(TTA)的稀土配合物组装了混合金属的双核化合物2:Ru(bpy)2-BL-Eu(TTA)3(ClO4)2,3:Ru(bpy)2-BL-Yb(TTA)3(ClO4)2,4:Ru(bpy)2-BL-Nd(TTA)3(ClO4)2.荧光测试表明:化合物1的发射峰出现在564 nm处,为联吡啶钌中心的荧光发射;2,3,4的荧光发射峰分别出现在610 nm,986和1 060 nm,1 064和1 331 nm处,与此同时,2,3,4化合物中564 nm处的发射峰强度降低甚至猝灭,这表明在稀土与联吡啶钌形成的异核双核化合物中,实现了分子内的能量传递. A series of heterometallic complexes 2 : Ru(bpy)2-BL-Eu(TTA)3 (ClO4)2,3: Ru(bpy)2-BL- Yb (TTA) 3 (ClO4) 2 and 4 : Ru (bpy) 2-BL-Nd (TTA) 3 (ClO4)2 were synthesized by using the complex 1 : Ru (bpy) 2-BL(ClO4 ) 2 ( bpy = 2,2 (-bipyridine, BL = N^1 , N^4 his ((pyridin-2-yl) methylene) benzene 1,4-diamine, TTA = 2-thenoyhrifluoro acetonate) Upon 564 nm excitation, emission spectra show that the emission of four complexes happen at 564 nm for complex 1, 610 nm for complex 2, 986 and 1 060 nm for complex 3, and 1 064 and 1 331 nm for complex 4 However, in complexes 2, 3 and 4, the intensity of emission at 564 nm due to center Ru^2+ decreases or disappears The results indicate that the energy transfer can be realized in the Ru-Ln binuclear complexes.
出处 《武汉大学学报(理学版)》 CAS CSCD 北大核心 2006年第6期659-662,共4页 Journal of Wuhan University:Natural Science Edition
基金 国家自然科学基金资助项目(20573078)
关键词 荧光发射 钌配合物 稀土配合物 能量传递 luminescence ruthenium cornplex In-complex energy transfer
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