卟啉-蒽醌化合物分子内光诱导电子传递的光谱研究

引用本文: 赵平, 绪连彩, 马丽. 卟啉-蒽醌化合物分子内光诱导电子传递的光谱研究[J]. 物理化学学报, 2011, 27(11): 2541-2546. doi: 10.3866/PKU.WHXB20111021 shu

Citation: ZHAO Ping, XU Lian-Cai, MA Li. Spectral Research into Intramolecular Photoinduced Electron Transfer of Porphyrin-Anthraquinone Hybrids[J]. Acta Physico-Chimica Sinica, 2011, 27(11): 2541-2546. doi: 10.3866/PKU.WHXB20111021 shu

卟啉-蒽醌化合物分子内光诱导电子传递的光谱研究

赵平 ^1, ,
绪连彩 ^2, ,
马丽 ^3,

基金项目:
广东省医学科研项目(B2010158)资助 (B2010158)

摘要: 合成了以不同长度柔韧碳链相连的三种卟啉(Por)-蒽醌(AQ)二元化合物Por-C_n-AQ (n=1, 4, 10), 主要通过稳态荧光光谱和瞬态荧光光谱研究了它们的分子内光诱导电子传递情况, 并结合密度泛函理论(DFT)对分子内电子转移机理进行了初步探讨. 结果表明: 共价相连的卟啉-蒽醌二元化合物在光激发下能够发生从卟啉组分到蒽醌组分的分子内光诱导电子传递; 连接链性质对电子传递速率有直接的影响. 实验和理论计算结果表明卟啉-蒽醌之间的分子内电子转移很可能是通过超交换机理进行的.

关键词:

English

Spectral Research into Intramolecular Photoinduced Electron Transfer of Porphyrin-Anthraquinone Hybrids

1.
1. School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, Guangdong Province, P. R. China;
2. School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China;
3. College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
Received Date: 29 July 2011
Available Online: 27 October 2011
Fund Project:
广东省医学科研项目(B2010158)资助

Abstract: A series of covalently linked porphyrin (Por)-anthraquinone (AQ) hybrids Por-C_n-AQ (n=1, 4, 10) with flexible different length carbon chains were synthesized and their intramolecular photoinduced electron transfer (PET) properties were investigated mainly by steady-state fluorescence and decayed luminescence spectra. We studied the PET mechanism using density functional theory (DFT). We found that PET occurs from the porphyrin moiety to the anthraquinone moiety of these dyads and that the PET efficiency is influenced considerably by the length of the linkage between the two moieties in the hybrids. From both the experimental and theoretical results, we can conclude that the PET of these dyads is seemingly most compatible with a“through-bond”(super-exchange) mechanism.

Key words:

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沈阳化工大学材料科学与工程学院沈阳 110142

卟啉-蒽醌化合物分子内光诱导电子传递的光谱研究

English

Spectral Research into Intramolecular Photoinduced Electron Transfer of Porphyrin-Anthraquinone Hybrids

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

卟啉-蒽醌化合物分子内光诱导电子传递的光谱研究

English

Spectral Research into Intramolecular Photoinduced Electron Transfer of Porphyrin-Anthraquinone Hybrids

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

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CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

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