Using the isotope effect to probe an aggregation induced emission mechanism: theoretical prediction and experimental validation
文献类型：期刊论文
| 作者 | Zhang, Tian1; Peng, Qian2; Quan, Changyun3; Nie, Han3; Niu, Yingli4; Xie, Yujun5; Zhao, Zujin3; Tang, Ben Zhong3; Shuai, Zhigang1,6 |
| 刊名 | CHEMICAL SCIENCE
 |
| 出版日期 | 2016 |
| 卷号 | 7期号:8页码:5573-5580 |
| 英文摘要 | Aggregation-induced emission (AIE) has become a hot topic for a variety of potential applications, but the understanding of its working mechanism is still under scrutiny. Herein, we proposed the use of the isotope effect (IE) to identify the AIE mechanism: under the restriction of an internal motion mechanism, the IE is pronouncedly different in excited-state decay rates when contrasting AIE luminogens (AIEgens) and non-AIEgens in theoretical calculations. For the complete deuteration of AIEgens, the IE of nonradiative decay rate in solution (<-10%) is much weaker than that (-65% to -95%) in aggregate, because the former stems from the overall results of competitive vibronic coupling and the severe mixing of low-frequency modes while the latter mainly comes from the vibronic coupling only. The experimental results confirm the isotopic "jump" behaviors in AIEgens well. However, non-AIEgens exhibit equivalent IEs (-40% to -90%) in both solution and solid phases. Further partial deuteration schemes for the 6-ring AIE analogues show positional dependence. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/35348]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Tsinghua Univ, Key Lab Organ OptoElect & Mol Engn, Dept Chem, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China 3.South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China 4.Chinese Acad Sci, Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China 5.Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China 6.Xiamen Univ, Collaborat Innovat Ctr Chem Energy Mat, Xiamen 351005, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Tian,Peng, Qian,Quan, Changyun,et al. Using the isotope effect to probe an aggregation induced emission mechanism: theoretical prediction and experimental validation[J]. CHEMICAL SCIENCE,2016,7(8):5573-5580. |
| APA | Zhang, Tian.,Peng, Qian.,Quan, Changyun.,Nie, Han.,Niu, Yingli.,...&Shuai, Zhigang.(2016).Using the isotope effect to probe an aggregation induced emission mechanism: theoretical prediction and experimental validation.CHEMICAL SCIENCE,7(8),5573-5580. |
| MLA | Zhang, Tian,et al."Using the isotope effect to probe an aggregation induced emission mechanism: theoretical prediction and experimental validation".CHEMICAL SCIENCE 7.8(2016):5573-5580. |
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。