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一种新的环金属化钌配合物的合成与表征 被引量：2

Synthesis and Characterization of a New Cyclometalated Ruthenium Complex
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摘要 合成了一种新的C,N-配位型环金属化钌染料敏化剂Ru-1,通过核磁共振氢谱以及红外光谱对该配合物进行了表征.由紫外-可见吸收光谱表明:该配合物的金属到配体的电荷转移跃迁(MLCT)吸收最大可达546 nm,比传统的明星染料N3([Ru(dcbpy)2(NCS)2],dcbpy=22,'-二联吡啶-4,4'-二羧酸)红移约10 nm,且摩尔消光系数提高了约1.5倍.由此说明该配合物在长波方向表现出比N3更为优良的吸收性能,这对提高染料敏化纳米晶太阳能电池的光电转化效率十分有利. A new C, N-coordinated cyclometalated ruthenium sensitizer Ru-1 was synthesized and characterized by ＇HNMR and FT-IR spectra. The UV-Vis spectra Showed that the MLCT （metal to ligand charge transfer transition） absorptions of Ru-1 was centered at 546 nm. Compared with N3 （ [ Ru（dcbpy） 2 （NCS）2 ], dcbpy = 2,2＇- dipyridyl-4,4＇- dicarboxylic acid） , it is red-shifted 10 nm with its molar extinction coefficients increased about 1.5 times. These data showed that the absorptions of Ru-1 in the red region is better than that of N3, which is favorable to enhance the photoelectric conversion efficiency.
作者 李襄宏 史正建 程新建
机构地区 中南民族大学化学与材料科学学院
出处 《中南民族大学学报（自然科学版）》 CAS 2011年第4期16-19,共4页 Journal of South-Central University for Nationalities：Natural Science Edition
基金 教育部科学技术研究重点项目(211210)
关键词 染料敏化太阳能电池 环金属化钌配合物 MLCT态吸收 dye-sensitized solar cells cyclometalated ruthenium complex metal to ligand charge transfer transition
分类号 O614.821 [理学—无机化学]
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参考文献12

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同被引文献26

  • 1Sun Y, Hudson Z M, Rao Y, et al. Tuning and switching MLCT phosphorescence of [ Ru (bpy) 3 ]2+ complexes with triarylboranes and anions [ J ]. Inorg Chem, 2011, 50 (8) : 3373-3378.
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  • 6Yao C J, Zhong Y-W, Yao J. Charge delocalization in a cyclometalated bisruthenium complex bridged by a noninnocent 1,2,4, 5-tetra ( 2-pyridyl ) benzene ligand [J]. J Am Chem Soc, 2011, 133(39) : 15697-15706.
  • 7Li X, Chen Z, Zhao Q, et al. Nonconjugated dendritic iridium ( III ) complexes with tunable pyridine-based ligands : synthesis, photophysical, electrochemical, and electroluminescent properties [ J]. Inorg Chem, 2007, 46(14): 5518-5527.
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中南民族大学学报（自然科学版）
2011年 第4期

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