用化合物1:Ru(bpy)2-BL(ClO4)2(bpy=2,2’-联吡啶,BL=N^1,N^4-二-(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564nm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610nm,986和1060nm,1064和1331nm处,与此同时,2,3,4化合物中564nm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.