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有机化学
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有机化学 ›› 2004, Vol. 24 ›› Issue (8): 953-956. 上一篇    下一篇

研究简报

铼联吡啶系列光敏染料的研究

孙世国, 彭孝军*, 凡明文, 徐勇前, 时磊, 高云玲, 孙立成*   

  1. 大连理工大学精细化工国家重点实验室 大连 116012
  • 收稿日期:2003-07-07 修回日期:2003-11-27 接受日期:2004-03-01 发布日期:2022-09-20
  • 通讯作者: * E-mail: pengxj@chem.dlut.edu.cn
  • 基金资助:
    国家重点基础研究专项经费和国家自然科学基金(Nos. 20128005, 20376010)资助项目.

Studies on a Series of Rhenium(I) Bipyridyl Photosensitive Dyes

SUN Shi-Guo, PENG Xiao-Jun*, FAN Ming-Wen, XU Yong-Qian, SHI Lei, GAO Yun-Ling, SUN Li-Cheng*   

  1. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian116012
  • Received:2003-07-07 Revised:2003-11-27 Accepted:2004-03-01 Published:2022-09-20

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设计合成了2,2'-联吡啶-4,4'-二羧酸乙酯与过渡金属铼的系列络合物[fac-Re(4,4'-di-COOEt-bpy)(CO)3(Xpy)PF6] (其中bpy=2,2'-联吡啶;py=吡啶;X=3-CH3, 3-OH, 3-NH2和H),对它们的电化学性能、紫外可见吸收、荧光激发和发射光谱进行了研究.结果表明,随着吡啶环上取代基供电子能力的增强,H＜CH3＜OH＜NH2, Re(II/I)的氧化电位降低,减小了电子回传的驱动力;MLCT最大吸收波长变化不大,最大发射波长略有蓝移,荧光强度减弱,荧光寿命缩短.

关键词: 铼联吡啶络合物, 光敏染料, 纳米晶体光电池

A series of rhenium(I) 2,2'-bipyridyl complexes [fac-(4,4'-di-COOEt-bpy)Re(CO)3(Xpy)PF6] (bpy=2,2'-bipyridine; py=pyridine; X=3-methyl, 3-hydroxy, 3-amino, H) were synthesized. Their electrochemical properties, ground state electronic spectra and emission spectra were studied in acetonitrile. As the X group became moreelectron donating from H to 3-methyl, 3-hydroxy or 3-amino, the Re(II/I) oxidation potentials declined, the MLCT absorption maximum of the complex was changed little, the emission maximum blue-shifted, and the emission intensity and the fluorescence lifetime were decreased.

Key words: rhenium(I) bipyridyl complex, photosensitive dye, nanocrystalline photovoltaic cell