{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T03:54:46Z","timestamp":1785729286825,"version":"3.56.0"},"reference-count":44,"publisher":"Wiley","issue":"24","license":[{"start":{"date-parts":[[2019,4,4]],"date-time":"2019-04-04T00:00:00Z","timestamp":1554336000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Chemistry A European J"],"published-print":{"date-parts":[[2019,4,26]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The mechanoresponsive behavior and photochemical response of a new bis(cyanostyryl)benzene fluorophore (CSB\u20105) were investigated. Green fluorescence with <jats:italic>\u03bb<\/jats:italic><jats:sub>em,max<\/jats:sub> of 507\u2005nm was found for CSB\u20105 in chloroform solution, mirroring the behavior of a previously reported similar dye (CSB\u20106). Alternatively, crystalline samples of CSB\u20105 exhibited orange fluorescence with <jats:italic>\u03bb<\/jats:italic><jats:sub>em,max<\/jats:sub> of 620\u2005nm, attributable to excimer emission. Although the emission color change was not clearly noticeable by naked eye, CSB\u20105 exhibited mechanochromic luminescence, due to transformation into the amorphous state upon grinding the crystalline powder. Interestingly, rubbed films of CSB\u20105 prepared on glass substrates exhibited a pronounced emission color change from orange to green when exposed to UV light. This response is the result of a photochemical reaction that occurs in the amorphous state and which causes a decrease of the excimer emission sites so that the emission color changes from excimer to monomer. The crystalline material did not display such a photoinduced emission color change and the difference in photochemical reactivity between crystalline and amorphous states was exploited to pattern the emission color of rubbed films.<\/jats:p>","DOI":"10.1002\/chem.201900120","type":"journal-article","created":{"date-parts":[[2019,3,12]],"date-time":"2019-03-12T11:33:12Z","timestamp":1552390392000},"page":"6162-6169","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Mechano\u2010 and Photoresponsive Behavior of a Bis(cyanostyryl)benzene Fluorophore"],"prefix":"10.1002","volume":"25","author":[{"given":"Ryohei","family":"Kaneko","sequence":"first","affiliation":[{"name":"Department of Applied Chemistry Muroran Institute of Technology  27-1, Mizumoto-cho Muroran Hokkaido 050-8585 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