The mechanodonor-acceptor coupling (MDAC) approach for unidirectional multi-state fluorochromism  

作　　者：Luyan Gu Lujia Zhang Xiao Luo Ying Zheng Zhiwei Ye Meng Lv Jinquan Chen Chunlai Chen Yi Xiao Weihong Zhu Xuhong Qian Youjun Yang 

机构地区：[1]State Key Laboratory of Bioreactor Engineering,Shanghai Key Laboratory of Chemical Biology,School of Pharmacy,East China University of Science and Technology,Shanghai 200237,China [2]School of Life Sciences,Beijing Advanced Innovation Center for Structural Biology,Beijing Frontier Research Center for Biological Structure,Tsinghua University,Beijing 100084,China [3]State Key Laboratory of Precision Spectroscopy,East China Normal University,Shanghai 200062,China [4]School of Chemistry and Molecular Engineering,East China Normal University,Shanghai 200241,China [5]School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China [6]State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian 116024,China

出　　处：《Science China Chemistry》2021年第2期253-262,共10页中国科学（化学英文版）

基　　金：the National Natural Science Foundation of China(21822805,21922704,21877069,21908065,22078098);China Postdoctoral Science Foundation(2019M651427,2020T130197);the Commission of Science and Technology of Shanghai Municipality(18430711000)。

摘　　要：Uni-directional multi-state fluorochromic scaffolds are valuable photofunctional molecules and yet scarce. We report a general approach for their design, i.e., mechanodonor-acceptor coupling(MDAC). A photochromic molecule is a mechanodonor, due to its capability to convert photonic energy into mechanical force. Upon proper coupling, it can be used to drive a mechanochromic molecule for uni-directional multi-state fluorochromism. The embodiment of this approach is a rhodamine-dithienylethylene hydride(RDH), which has been successfully employed in super-resolution localization microscopy.

关 键 词：mechanodonor-acceptor coupling fluorochromism diarylethene-rhodamine hybrid single-molecule imaging 

分 类 号：TB34[一般工业技术—材料科学与工程]