物理化学学报 >> 2009, Vol. 25 >> Issue (01): 74-78.doi: 10.3866/PKU.WHXB20090113

研究论文 上一篇    下一篇

苝醌/富勒烯C60超分子与电子给体的电子转移作用

高云燕; 欧植泽; 杨国强; 王雪松; 张智斌; 礼嵩明   

  1. 西北工业大学理学院应用化学系, 西安 710072; 中国科学院化学研究所光化学重点实验室, 北京 100190; 中国科学院理化技术研究所, 北京 100190
  • 收稿日期:2008-08-01 修回日期:2008-10-06 发布日期:2008-12-31
  • 通讯作者: 欧植泽 E-mail:ouzhize@nwpu.edu.cn

Photoinduced Electron Transfer between Perylenequinonoid/Fullerene C60 Supramolecule and Electron Donor

GAO Yun-Yan; OU Zhi-Ze; YANG Guo-Qiang; WANG Xue-Song; ZHANG Zhi-Bin; LI Song-Ming   

  1. Department of Applied Chemistry, School of Science, Northwestern Polytechnical University, Xi’an 710072, P. R. China; Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China; Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
  • Received:2008-08-01 Revised:2008-10-06 Published:2008-12-31
  • Contact: OU Zhi-Ze E-mail:ouzhize@nwpu.edu.cn

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摘要： 利用紫外-可见吸收光谱、瞬态吸收光谱及X射线衍射等方法研究了苝醌染料竹红菌素镁离子配合物(Mg2+-HA)与富勒烯C60的相互作用. 结果表明, Mg2+-HA与C60在溶液和固体状态下都能够形成稳定的超分子. Mg2+-HA存在条件下, C60能够溶于多种极性溶剂, 在二甲基亚砜(DMSO)中的溶解度能够达到1×10-4 mol·L-1. 作为超分子体系中的光捕获分子, Mg2+-HA能显著地提高C60与N,N-二甲基苯胺(DMA)的光诱导电子转移反应效率, 生成的C60负离子自由基的电子自旋共振光谱(ESR)信号强度比未加入Mg2+-HA时增强了9倍左右.

关键词: 苝醌, 富勒烯C60, 光诱导电子转移反应, 超分子

Abstract: The magnesiumcomplex of hypocrellinA(Mg2+-HA) (a perylenequinonoid compound) and pristine fullerene C60 was used to construct supramolecular assemblies in solution and in the solid state. The assembly was characterized by UV-Vis, transient absorption spectroscopy, and powder X-ray diffraction (XRD). The solubility of C60 in polar solvent improves significantly in the presence of Mg2+-HA. The solubility of C60 in dimethyl sulfoxide (DMSO) is 1×10-4 mol·L-1 when C60 is allowed to complex with Mg2+-HA(4×10-4 mol·L-1). Acting as an antenna molecule in the supramolecular system, Mg2+-HA remarkably enhances the photoinduced electron transfer efficiency between C60 and an electron donor, N,N-dimethylaniline (DMA). The electron spin resonance (ESR) signal intensity of C6-0·increases 9-fold as strong as that in the absence of Mg2+-HA.

Key words: Perylenequinonoid, Fullerene C60, Photoinduced electron transfer, Supramolecule