Photo-induced intramolecular electron transfer of fluorescein-anthraquinone-methyl ester and detection of its charge-separated state
文献类型：期刊论文
| 作者 | Zhang, HP; Zhou, YL; Zhang, MH; Shen, T; Li, YL; Zhu, DB |
| 刊名 | CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
 |
| 出版日期 | 2003-03-01 |
| 卷号 | 24期号:3页码:492-495 |
| 关键词 | Fluorescein-anthraquinone-methyl Ester Photo-induced Electron Transfer Nanosecond Transient Absorption Spectroscopy Titania Nanometer Colloids (Tio2) |
| ISSN号 | 0251-0790 |
| 英文摘要 | The diad composed of fluorescein and 2-methyl-anthraquinone (FL-AQ) has been synthesized and its photophysical properties, have been examined by absorption, fluorescence spectroscopy and fluorescence lifetime. The charge separated state formed by photo-induced intramolecular electron transfer has been detected by nanosecond transient absorption spectroscopy for the first time. When FL is excited in solution, the photo-induced electron transter from FL to AQ proceed's efficiently. The rate constant and the efficiency of intramolecular electron transfer are 3. 95 x10(9) s(-1) and 95% respectively. Its charge-separated state lifetime is too short to detect obviously by transient Absorption spectroscopy. Adding of nanometersize TiO2 colloids to FL-AQ ethanol solution can prolong the lifetime of charge-separated state, so its transient absorption signal is recorded significantly. The decay lifetime of FL+. at 480 nm is 11. 1 mus. The decay lifetime of AQ(-.) at 60 nm is 8. 93 mus. |
| 语种 | 英语 |
| WOS记录号 | WOS:000182511900028 |
| 出版者 | HIGHER EDUCATION PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/81125]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, MH |
| 作者单位 | Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, HP,Zhou, YL,Zhang, MH,et al. Photo-induced intramolecular electron transfer of fluorescein-anthraquinone-methyl ester and detection of its charge-separated state[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2003,24(3):492-495. |
| APA | Zhang, HP,Zhou, YL,Zhang, MH,Shen, T,Li, YL,&Zhu, DB.(2003).Photo-induced intramolecular electron transfer of fluorescein-anthraquinone-methyl ester and detection of its charge-separated state.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,24(3),492-495. |
| MLA | Zhang, HP,et al."Photo-induced intramolecular electron transfer of fluorescein-anthraquinone-methyl ester and detection of its charge-separated state".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 24.3(2003):492-495. |
入库方式： OAI收割
来源：化学研究所
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