Strengthened near-IR two-photon absorption induced emission of ESIPT chromophores by molecular aggregation
文献类型：期刊论文
| 作者 | Ding, Ge1,2; Lu, Yao2; Qin, Xiaozhuan2; Su, Jihong2; Li, Hongru2; Liu, Xiaohong3,4; Gao, Fang2 |
| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| 出版日期 | 2021-11-20 |
| 卷号 | 629页码:13 |
| 关键词 | Near-IR two-photon absorption Molecular aggregation Phototautomer ESIPT AIEE |
| ISSN号 | 0927-7757 |
| DOI | 10.1016/j.colsurfa.2021.127476 |
| 通讯作者 | Li, Hongru(hrli@cqu.edu.cn) ; Liu, Xiaohong(lxhsuda@163.com) ; Gao, Fang(fgao@cqu.edu.cn) |
| 英文摘要 | In this study, a range of new free open-chain conjugated organic chromophores including salicylidene methylamine part were synthesized and characterized. The steady state and transient state absorption and emission properties of the target dyes in DMF were investigated. The results showed that the target dyes processed the excited state intramolecular proton transfer (ESIPT) in DMF under one-photon excitation. Furthermore, the ESIPT was more competitive under the exposure of pulsed pumping near-IR femotosecond laser in DMF. The further survey showed that the target dyes yielded gradually the regular molecular aggregates in the mixed DMF/ H2O (the water volume fractions, 60-80%) with evolving time. In particular, the target molecular aggregates exhibited the strong enol emission but the quenched keto emission under one-photon exposure and near-IR twophoton irradiation, respectively. In addition, the near-IR two-photon absorption (TPA) induced enol emission of the target dyes showed an enhancement in the aggregation state. This study demonstrates that it is feasible to strengthen TPA induced emission of enol phototautomers of some ESIPT compounds by the molecular aggregation under the irradiation of near-IR femotosecond laser. |
| 资助项目 | Chongqing Science and Technology Commission[cstc2018jcyjAX0668] ; Chongqing University of Arts and Sciences[2017RCH03] ; Yongchuan Science and Technology Commission[2021yc-jckx20022] ; Chongqing Municipal Education Commission[KJQN202001339] ; Department of Science and Technology of Henan province[192102210201] ; China Postdoctoral Science Foundation[22012T50762] ; China Postdoctoral Science Foundation[2011M501388] ; Natural Science Foundation of Chongqing, China[cstc2019jcyj-msxmX0663] ; Science and Technology Research Program of Chongqing Municipal Education Commission[KJQN201904102] ; Science and Technology Research Program of Chongqing Municipal Education Commission[KJQN202004104] ; Beibei Scientific and Technological Program Project of China[2019-2] ; scientific research program of Chongqing Youth Vocational & Technical College[CQY2019KYY04] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000704131200001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/14161]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Li, Hongru; Liu, Xiaohong; Gao, Fang |
| 作者单位 | 1.Chongqing Univ Arts & Sci, Coll Chem & Environm Engn, Chongqing Key Lab Environm Mat & Remediat Technol, Yongchuan 402160, Peoples R China 2.Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China 3.Chongqing Youth Vocat & Tech Coll, Chongqing 400712, Peoples R China 4.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Ge,Lu, Yao,Qin, Xiaozhuan,et al. Strengthened near-IR two-photon absorption induced emission of ESIPT chromophores by molecular aggregation[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2021,629:13. |
| APA | Ding, Ge.,Lu, Yao.,Qin, Xiaozhuan.,Su, Jihong.,Li, Hongru.,...&Gao, Fang.(2021).Strengthened near-IR two-photon absorption induced emission of ESIPT chromophores by molecular aggregation.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,629,13. |
| MLA | Ding, Ge,et al."Strengthened near-IR two-photon absorption induced emission of ESIPT chromophores by molecular aggregation".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 629(2021):13. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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