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| 1 | Synthesis and luminescent properties of some novel naphthalimide dimmers显示文摘 | Ren Jun Qu Dahui | 2003 | Dyes and Pigments2003，59，2： | 1 |
| 2 | Triggering a [2]rotaxane molecular shuttle through hydrogen sulfide显示文摘A novel chemically-controlled [2]rotaxane molecular shuttle was successfully designed and synthesized. A H_2 S-responsive bulk barrier was introduced between the two identical recognition stations of the [2]rotaxane to prevent dynamic shuttling of the macrocycle. Upon addition of H_2 S, the complete intramolecular cascade reaction occurs in a controllable manner, resulting in removal of the bulk barrier and the shuttling motion of the macrocycle between the two stations recovers. | Shun Yang Zhoulin Luan Chuan Gao Jingjing Yu Dahui Qu | 2018 | Science China Chemistry2018，61，3： | 0 |
| 3 | In Situ Monitoring of Transmetallation in Electric Potential-Promoted Oxidative Coupling in a Single-Molecule Junction显示文摘To monitor and investigate chemical reactions in real time and in situ is a long-standing,challenging goal in chemistry.Herein,an electric potential-promoted oxidative coupling reaction of organoboron compounds without the addition of base is reported,and the transmetallation process involved is monitored in real time and in situ with the scanning tunneling microscopy break single-molecule junctions(STMBJ)technique.We found that the electric potential applied determined the transmetallation.At low-bias voltage,the first-step transmetallation process occurred and afforded Au─C-bonded aryl gold intermediates.The electronic properties of organoboron compounds have a strong influence on the transmetallation process,and electron-rich compounds facilitate this transformation.At high-bias voltage,the second-step transmetallation process took place,and the corresponding intermediate(highly reactive diaryl metal complex)was detected with the assistance of Pd(OAc)_(2).Our work demonstrates the applications of STMBJ on in situ monitoring and catalyzing of chemical reactions and provides a new methodology to fabricate singlemolecule devices. | Yunpeng Li Chengxi Zhao Rui Wang Ajun Tang Wenjing Hong Dahui Qu He Tian Hongxiang Li | 2023 | CCS Chemistry2023，5，1： | 0 |
| 4 | An acid-base responsive linear-cyclic polymer rotaxane molecular shuttle with fluorescence signal output显示文摘The preparation of intelligent-responsive materials with controllable topology structure has long been a significant objective for chemists in the field of materials science. In this paper, we designed and prepared a linear-cyclic reversible topological structure polymer based on the bistable [1]rotaxane molecular shuttle. A ferrocene-functionalized [1]rotaxane and naphthalimide fluorophore group are introduced into the both ends of the polymer, which exhibit distance-induced photo-electron transfer effect. The structural transformation between linear and cyclic state of polymer is demonstrated by simple acid-base stimuli, accompanying visual fluorescence changes. The transformation process was characterized by 1H NMR spectra and fluorescence spectra. This work provides a novel strategy to construct functionalized polymers with topological structure. | Zhanqi Cao Dongpu Wu Mengzhen Li Fan Yang Zhikai Li Wankai An Song Jiang Xin Zheng Caoyuan Niu Dahui Qu | 2022 | Chinese Chemical Letters2022，33，3： | 0 |
| 5 | Supramolecular gelator based on a [c2]daisy chain rotaxane:efficient gel-solution transition by ring-sliding motion显示文摘A supramolecular gelator based on the bistable [c2]daisy chain rotaxane is designed and synthesized. The reversible actuation of the [c2]daisy chain renders the formed supramolecular gel with acid/base-responsive switching between gel and monomer solution. The efficient switching process is attributed to the ring-sliding effect of the rotaxane in response to acid/base stimuli.The ring-inhibited hydrogen bonding stacking results in a nearly quantitatively disassembly of the gel network after addition of base which is hard to be realized by traditional heating strategy in hydrogen-bonding-supported gel. | Rongrong Tao Qi Zhang Sijia Rao Xiuli Zheng Mingming Li Dahui Qu | 2019 | Science China Chemistry2019，62，2： | 0 |
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