Energy Transfer and Concentration-Dependent Conformational Modulation: A Porphyrin-Containing [3]Rotaxane
文献类型：期刊论文
| 作者 | Wang, Xiao-Ye; Han, Ji-Min; Pei, Jian |
| 刊名 | CHEMISTRY-AN ASIAN JOURNAL
 |
| 出版日期 | 2012-10-01 |
| 卷号 | 7期号:10页码:2429-2437 |
| 关键词 | Conformational Change Cycloaddition Energy Transfer Porphyrinoids Rotaxanes |
| ISSN号 | 1861-4728 |
| DOI | 10.1002/asia.201200443 |
| 英文摘要 | A zinc porphyrin-containing [3]rotaxane A was synthesized through a copper(I)-catalyzed azidealkyne cycloaddition (CuAAC) reaction. Energy donors and acceptor porphyrin were introduced to dibenzo[24]crown-8 (DB24C8) and dibenzyl ammonium (DBA) units of [3]rotaxane A to understand the intramolecular energy transfer process. Investigations of the photophysical properties of [3]rotaxane A demonstrated that the intramolecular efficient energy transfer readily occurred from the donors on the wheels to the porphyrin center on the axis. The fluorescence of energy donors in the region of 400 to 450 nm was efficiently absorbed by the porphyrin acceptor under irradiation at 345 nm, and finally a red light emission at about 600 nm was achieved. Further investigation indicated that the conformation of [3]rotaxane A was self-modulated by changing its concentration in CH2Cl2. The triazole groups on the wheel coordinated or uncoordinated to Zn2+ through intramolecular self-coordination with the change in the concentration of [3]rotaxane A in CH2Cl2. Therefore, this conformational change was reversible in a non-coordinating solvent such as CH2Cl2 but inhibited in a coordinating solvent such as THF. Such interesting behaviors were rarely observed in porphyrin derivatives. This self-modulation feature opens up the possibility of controlling molecular conformation by varying concentration. |
| 语种 | 英语 |
| WOS记录号 | WOS:000308877400036 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/49147]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Pei, Jian |
| 作者单位 | Peking Univ, Coll Chem & Mol Engn, Key Lab Bioorgan Chem & Mol Engn, BNLMS, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xiao-Ye,Han, Ji-Min,Pei, Jian. Energy Transfer and Concentration-Dependent Conformational Modulation: A Porphyrin-Containing [3]Rotaxane[J]. CHEMISTRY-AN ASIAN JOURNAL,2012,7(10):2429-2437. |
| APA | Wang, Xiao-Ye,Han, Ji-Min,&Pei, Jian.(2012).Energy Transfer and Concentration-Dependent Conformational Modulation: A Porphyrin-Containing [3]Rotaxane.CHEMISTRY-AN ASIAN JOURNAL,7(10),2429-2437. |
| MLA | Wang, Xiao-Ye,et al."Energy Transfer and Concentration-Dependent Conformational Modulation: A Porphyrin-Containing [3]Rotaxane".CHEMISTRY-AN ASIAN JOURNAL 7.10(2012):2429-2437. |
入库方式： OAI收割
来源：化学研究所
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