Controllable multicolor switching of oligopeptide-based mechanochromic molecules: from gel phase to solid powder
文献类型：期刊论文
| 作者 | Ma, Zhiyong1; Wang, Zhijian1; Xu, Zejun1; Jia, Xinru1; Wei, Yen2 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY C
 |
| 出版日期 | 2015 |
| 卷号 | 3期号:14页码:3399-3405 |
| ISSN号 | 2050-7526 |
| DOI | 10.1039/c5tc00148j |
| 英文摘要 | A series of molecules with pyrene and rhodamine B as color-producing mechanophores linked by different spacers were synthesized and their mechanochromic properties were studied. Interestingly, we found that the molecule with diphenylalanine as a linker (PHE-2) showed a sequential multicolored switch from deep blue to bluish green and further to a reddish color, which was associated with the phase change from gel to xerogel as the solvent evaporated, and to a solid powder triggered by grinding. However, the gel and xerogel of the molecule with the pentaphenylalanine linker (PHE-5) exhibited the same deep blue color that switched to bluish green and further to a reddish powder by virtue of continuously grinding the xerogel sample in situ. The multicolored switching of PHE-2 and PHE-5 was realized by the variation of the self-assembled structures, which induced the transition of the pyrene excimers from excimer 1 (deep blue) to excimer 2 (bluish green), and by the chemical reaction of rhodamine B from a spirolactam to a ring-opened amide (red). From the experimental results, we may conclude that the crucial point for controlling and tuning the tricolored fluorescent switch of this system is to constrict the pyrene excimer in an overlapped packing mode, which can be achieved (1) by controlling the molecular structure; and (2) by confining the excimers of pyrene in a restricted environment. |
| 语种 | 英语 |
| WOS记录号 | WOS:000351871600022 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/43559]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Jia, Xinru |
| 作者单位 | 1.Peking Univ, Beijing Natl Lab Mol Sci, Key Lab Polymer Chem & Phys, Minist Educ,Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Zhiyong,Wang, Zhijian,Xu, Zejun,et al. Controllable multicolor switching of oligopeptide-based mechanochromic molecules: from gel phase to solid powder[J]. JOURNAL OF MATERIALS CHEMISTRY C,2015,3(14):3399-3405. |
| APA | Ma, Zhiyong,Wang, Zhijian,Xu, Zejun,Jia, Xinru,&Wei, Yen.(2015).Controllable multicolor switching of oligopeptide-based mechanochromic molecules: from gel phase to solid powder.JOURNAL OF MATERIALS CHEMISTRY C,3(14),3399-3405. |
| MLA | Ma, Zhiyong,et al."Controllable multicolor switching of oligopeptide-based mechanochromic molecules: from gel phase to solid powder".JOURNAL OF MATERIALS CHEMISTRY C 3.14(2015):3399-3405. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。