{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T15:38:46Z","timestamp":1787067526702,"version":"build-2736575974"},"reference-count":34,"publisher":"Wiley","issue":"45","license":[{"start":{"date-parts":[[2025,7,2]],"date-time":"2025-07-02T00:00:00Z","timestamp":1751414400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003052","name":"Ministry of Trade, Industry and Energy","doi-asserted-by":"publisher","award":["RS\u20102023\u201300267510"],"award-info":[{"award-number":["RS\u20102023\u201300267510"]}],"id":[{"id":"10.13039\/501100003052","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003704","name":"Korea Research Institute of Chemical Technology","doi-asserted-by":"publisher","award":["BSK25\u2010132"],"award-info":[{"award-number":["BSK25\u2010132"]}],"id":[{"id":"10.13039\/501100003704","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Chemistry A European J"],"published-print":{"date-parts":[[2025,8,13]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The development of highly stable organic small molecules for optical applications is of growing interest. Multimerization of monomeric small molecules can enhance stability via increased \u03c0\u2013\u03c0 stacking, but it often reduces solubility and induces undesirable spectral shifts due to \u03c0\u2010extension. To overcome this trade\u2010off, we report a trimeric small molecule (F\u2010TPBT) derived from a model monomer (Tinuvin 327) using a 1,3,5\u2010fluorinated phenyl linker. This design markedly improves thermal stability and solubility while minimizing changes in the optical absorption spectrum. F\u2010TPBT shows superior thermal properties (5 wt% decomposition temperature\u00a0=\u00a0427\u00a0\u00b0C; weight loss after 1\u00a0hour at 300\u00a0\u00b0C\u00a0=\u00a00.32\u00a0wt%) and excellent solubility (5.3 wt% in dichloromethane; 6.4 wt% in N\u2010methylpyrrolidone (NMP)), with an absorption spectrum nearly identical to that of Tinuvin 327. These properties make F\u2010TPBT a promising UV light absorber for transparent polyimide (TPI) films, which require processing above 300\u00a0\u00b0C and are widely used in flexible displays. Notably, F\u2010TPBT\u2010containing films retain their absorption properties even after 80\u00a0hours of accelerated UV irradiation, demonstrating excellent photostability. This study presents a broadly applicable molecular design strategy for enhancing the stability and solubility of organic small molecules while avoiding significant spectral shifts.<\/jats:p>","DOI":"10.1002\/chem.202501742","type":"journal-article","created":{"date-parts":[[2025,6,24]],"date-time":"2025-06-24T06:45:39Z","timestamp":1750747539000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Fluorinated Trimers for Enhancing the Stability and Solubility of Organic Small Molecules Without Spectral Shifts: Ultrastable Ultraviolet Absorbers for Transparent Polyimide Films"],"prefix":"10.1002","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9962-0220","authenticated-orcid":false,"given":"Tae Gyu","family":"Hwang","sequence":"first","affiliation":[{"name":"Interface Materials and Chemical Engineering Research Center Korea Research Institute of Chemical Technology (KRICT)  Daejeon 34\u00a0114 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suhyeon","family":"Kim","sequence":"additional","affiliation":[{"name":"Semiconductor Process Architecture Team Foundry Samsung Electronics  Giheung\u2010gu, Yongin\u2010si, Gyeonggi\u2010do 17113 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hong Mo","family":"Kim","sequence":"additional","affiliation":[{"name":"Semiconductor Process Architecture Team Foundry Samsung Electronics  Giheung\u2010gu, Yongin\u2010si, Gyeonggi\u2010do 17113 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Woo Jin","family":"Choi","sequence":"additional","affiliation":[{"name":"Laboratory of Organic Photo\u2010functional Materials Department of Materials Science and Engineering Seoul National University  Seoul 08826 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyun Kyu","family":"Lee","sequence":"additional","affiliation":[{"name":"Material &amp; Component Convergence R&amp;D Department Korea Institute of Industrial Technology (KITECH)  Ansan 15588 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wan Soo","family":"Kim","sequence":"additional","affiliation":[{"name":"Laboratory of Organic Photo\u2010functional Materials Department of Materials Science and Engineering Seoul National University  Seoul 08826 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun Ho","family":"Yoon","sequence":"additional","affiliation":[{"name":"Laboratory of Organic Photo\u2010functional Materials Department of Materials Science and Engineering Seoul National University  Seoul 08826 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoo Sang","family":"Kim","sequence":"additional","affiliation":[{"name":"Laboratory of Organic Photo\u2010functional Materials Department of Materials Science and Engineering Seoul National University  Seoul 08826 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dong Jun","family":"Lee","sequence":"additional","affiliation":[{"name":"Laboratory of Organic Photo\u2010functional Materials Department of Materials Science and Engineering Seoul National University  Seoul 08826 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seung Yul","family":"Kim","sequence":"additional","affiliation":[{"name":"Interface Materials and Chemical Engineering Research Center Korea Research Institute of Chemical Technology (KRICT)  Daejeon 34\u00a0114 Republic of Korea"},{"name":"Division of Materials of Science and Engineering Hanyang University  222 Wangsimni\u2010ro, Seongdong\u2010gu Seoul 04763 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sang Goo","family":"Lee","sequence":"additional","affiliation":[{"name":"Interface Materials and Chemical Engineering Research Center Korea Research Institute of Chemical Technology (KRICT)  Daejeon 34\u00a0114 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jae Pil","family":"Kim","sequence":"additional","affiliation":[{"name":"Semiconductor Process Architecture Team Foundry Samsung Electronics  Giheung\u2010gu, Yongin\u2010si, Gyeonggi\u2010do 17113 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,7,2]]},"reference":[{"key":"e_1_2_8_1_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-023-38673-5"},{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.joule.2023.01.009"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/agt2.567"},{"key":"e_1_2_8_4_1","volume":"35","author":"Dai Y.","year":"2024","journal-title":"Adv. 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