{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T22:12:58Z","timestamp":1791583978080,"version":"4.3.4"},"reference-count":70,"publisher":"Wiley","issue":"64","license":[{"start":{"date-parts":[[2021,10,12]],"date-time":"2021-10-12T00:00:00Z","timestamp":1633996800000},"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":[[2021,11,17]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Elastic organic single crystals with light\u2010emitting and multi\u2010faceted bending properties are extremely rare. They have potential application in optical materials and have attracted the extensive attention of researchers. In this paper, we reported a structurally simple barbituric derivative <jats:bold>DBDT<\/jats:bold>, which was easily crystallized and gained long needle\u2010like crystals (centimeter\u2010scale) in DCM\/CH<jats:sub>3<\/jats:sub>OH (v\/v=2\/8). Upon applying or removing the mechanical force, both the (100) and (040) faces of the needle\u2010like crystal showed reversible bending behaviour, showing the nature of multi\u2010faceted bending. The average hardness (<jats:italic>H<\/jats:italic>) and elastic modulus (<jats:italic>E<\/jats:italic>) were 0.28\u00b10.01\u2005GPa and 4.56\u00b10.03\u2005GPa for the (040) plane, respectively. Through the analysis of the single crystal data, it could be seen that the van der waals (C\u2212H\u22c5\u22c5\u22c5\u03c0 and C\u2212H\u22c5\u22c5\u22c5C), H\u2010bond (C\u2212H\u22c5\u22c5\u22c5O) and \u03c0\u22c5\u22c5\u22c5\u03c0 interactions between molecules were responsible for the generation of the crystal elasticity. Interestingly, elastic crystals exhibited optical waveguide characteristics in straight or bent state. The optical loss coefficients measured at 627\u2005nm were 0.7\u2005dBmm<jats:sup>\u22121<\/jats:sup> (straight state) and 0.9\u2005dBmm<jats:sup>\u22121<\/jats:sup> (bent state), while the optical loss coefficient (\u03b1) were 1.5\u2005dBmm<jats:sup>\u22121<\/jats:sup> (straight state) and 1.8\u2005dBmm<jats:sup>\u22121<\/jats:sup> (bent state) at 567\u2005nm. Notably, the elastic organic molecular crystal based on barbituric derivative could be used as the candidate for flexible optical devices.<\/jats:p>","DOI":"10.1002\/chem.202103286","type":"journal-article","created":{"date-parts":[[2021,9,24]],"date-time":"2021-09-24T08:41:25Z","timestamp":1632472885000},"page":"16036-16042","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":34,"title":["Elastic Organic Crystals Based on Barbituric Derivative: Multi\u2010faceted Bending and Flexible Optical Waveguide"],"prefix":"10.1002","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7062-6493","authenticated-orcid":false,"given":"Jiang","family":"Peng","sequence":"first","affiliation":[{"name":"Key Laboratory of Magnetic Molecules and Magnetic Information Material Ministry of Education College of Chemistry and Material science Shanxi Normal University  Linfen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiakun","family":"Bai","sequence":"additional","affiliation":[{"name":"Key Laboratory of Magnetic Molecules and Magnetic Information Material Ministry of Education College of Chemistry and Material science Shanxi Normal University  Linfen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiumian","family":"Cao","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University  Changchun China"},{"name":"College of Physics Jilin University  Changchun China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jieting","family":"He","sequence":"additional","affiliation":[{"name":"Key Laboratory of Magnetic Molecules and Magnetic Information Material Ministry of Education College of Chemistry and Material science Shanxi Normal University  Linfen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weiqing","family":"Xu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University  Changchun China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junhui","family":"Jia","sequence":"additional","affiliation":[{"name":"Key Laboratory of Magnetic Molecules and Magnetic Information Material Ministry of Education College of Chemistry and Material science Shanxi Normal University  Linfen China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,10,12]]},"reference":[{"key":"e_1_2_7_1_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201806149"},{"key":"e_1_2_7_1_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201806149"},{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201300201"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/asia.201800380"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.langmuir.7b02466"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201502684"},{"key":"e_1_2_7_5_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201502684"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.201604659"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.accounts.8b00425"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201204604"},{"key":"e_1_2_7_8_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201204604"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201410730"},{"key":"e_1_2_7_9_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201410730"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.6b11835"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1039\/C8CC04132F"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.cgd.9b00846"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemmater.9b00040"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.cgd.0c01119"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.cgd.8b01684"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.cgd.9b01051"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.cgd.0c00521"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.cgd.0c00250"},{"key":"e_1_2_7_19_1","first-page":"65","volume":"10","author":"Worthy A.","year":"2018","journal-title":"Nat. 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