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The results illustrated that <jats:bold>TM\u20101<\/jats:bold>\u2013<jats:bold>4<\/jats:bold> exhibited clear AIE characteristics. Meanwhile, <jats:bold>TM\u20102<\/jats:bold> and <jats:bold>TM\u20103<\/jats:bold> show excellent solid emission properties (\u03a6<jats:sub><jats:bold>TM\u20102<\/jats:bold><\/jats:sub>=13.73\u2009% and \u03a6<jats:sub><jats:bold>TM\u20103<\/jats:bold><\/jats:sub>=36.21\u2009%), whereas <jats:bold>TM\u20101<\/jats:bold> and <jats:bold>TM\u20104<\/jats:bold> exhibit the opposite properties (\u03a6<jats:sub><jats:bold>TM\u20101<\/jats:bold><\/jats:sub>=1.48\u2009% and \u03a6<jats:sub><jats:bold>TM\u20104<\/jats:bold><\/jats:sub>=4.83\u2009%). The multiple rotors (pyridine and benzene ring) causes twisted conformations of the molecule that prevents \u03c0\u2010\u03c0 stacking and enhances solid emission(\u03a6<jats:bold>TM\u20102<\/jats:bold>&lt;\u03a6<jats:bold>TM\u20103<\/jats:bold>, \u03a6<jats:bold>TM\u20101<\/jats:bold>&lt;\u03a6<jats:bold>TM\u20104<\/jats:bold>). Significantly, <jats:bold>TM\u20102<\/jats:bold> and <jats:bold>TM\u20103<\/jats:bold> also exhibited reversible mechanochromic behavior (Emission red shifts: \u0394\u03bb<jats:sub><jats:bold>TM\u20102<\/jats:bold><\/jats:sub>=43\u2005nm and \u0394\u03bb<jats:sub><jats:bold>TM\u20103<\/jats:bold><\/jats:sub>=41\u2005nm) with color changes between blue and green emissions. The powder X\u2010ray diffraction (PXRD) suggested the disordered state of ground sample could be readily returned to an ordered crystalline. Therefore, the mechanochromisms of <jats:bold>TM\u20102<\/jats:bold> and <jats:bold>TM\u20103<\/jats:bold> are ascribable to the phase transformation between crystal and amorphous structure. The single crystal X\u2010ray analysis of <jats:bold>TM\u20102<\/jats:bold> reveals a twisted conformation for <jats:bold>TPE<\/jats:bold> moiety and the absence of \u03c0\u2010\u03c0 intermolecular stacking. These excellent optical properties of <jats:bold>TM\u20102<\/jats:bold> and <jats:bold>TM\u20103<\/jats:bold> make them potentially applications in mechanochromic materials and imaging agents.<\/jats:p>","DOI":"10.1002\/chem.202102578","type":"journal-article","created":{"date-parts":[[2021,8,24]],"date-time":"2021-08-24T10:23:35Z","timestamp":1629800615000},"page":"14964-14970","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["A Novel Strategy to Design and Construct AIE\u2010active Mechanofluorochromic Materials via Regulation of Molecular Structure"],"prefix":"10.1002","volume":"27","author":[{"given":"Kaibo","family":"Zheng","sequence":"first","affiliation":[{"name":"College of Materials and Chemical Engineering Key laboratory of inorganic nonmetallic crystalline and energy conversion materials China Three Gorges University  Yichang 443002 P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hui","family":"Chen","sequence":"additional","affiliation":[{"name":"College of Materials and Chemical Engineering Key laboratory of inorganic nonmetallic crystalline and energy conversion materials China Three Gorges University  Yichang 443002 P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yufeng","family":"Xiao","sequence":"additional","affiliation":[{"name":"College of Materials and Chemical Engineering Key laboratory of inorganic nonmetallic crystalline and energy conversion materials China Three Gorges University  Yichang 443002 P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiang","family":"Liu","sequence":"additional","affiliation":[{"name":"College of Materials and Chemical Engineering Key laboratory of inorganic nonmetallic crystalline and energy conversion materials China Three Gorges University  Yichang 443002 P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiaying","family":"Yan","sequence":"additional","affiliation":[{"name":"College of Materials and Chemical Engineering Key laboratory of inorganic nonmetallic crystalline and energy conversion materials China Three Gorges University  Yichang 443002 P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nuonuo","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Materials and Chemical Engineering Key laboratory of inorganic nonmetallic crystalline and energy conversion materials China Three Gorges University  Yichang 443002 P. R. 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