{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T00:57:50Z","timestamp":1790816270556,"version":"4.1.0"},"reference-count":42,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:00:00Z","timestamp":1790726400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:00:00Z","timestamp":1790726400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["W2411008"],"award-info":[{"award-number":["W2411008"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Angew Chem Int Ed"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Purely organic luminescent materials are pivotal for optoelectronics, with chalcogen\u2010fused phenazines serving as basic building blocks owing to their strong electron donating ability and enhanced spin\u2013orbit coupling effect. However, a systematic understanding of how the chalcogen identity governs intrinsic conformational preference between quasi\u2010axial (QA) and quasi\u2010equatorial (QE) forms remains elusive. To address this, we designed a series of derivatives featuring phenoxazine, phenothiazine, and phenoselenazine donors coupled with a terpyridine acceptor. We demonstrate that the chalcogen atom dictates molecular conformation: phenoxazine derivative exclusively adopts the QE conformation, phenothiazine derivative predominantly favors QE, while phenoselenazine derivative stabilizes in the QA form. Notably, heating induces a phase transition in polymorphs toward their thermodynamically favored conformations. Furthermore, Zn\n                    <jats:sup>2+<\/jats:sup>\n                    coordination enhances intramolecular charge transfer (ICT) strength, shifting the thermodynamically preferred conformation and triggering a switch from room\u2010temperature phosphorescence (RTP) to dual RTP\u2013delayed fluorescence (DF) emission. This work validates the chalcogen\u2010determined conformation and ICT strength can effectively modulates DF\/RTP performance, deepening the fundamental understanding of the chalcogen\u2010mediated conformation and properties for the rational design of organic luminescent materials.\n                  <\/jats:p>","DOI":"10.1002\/anie.6013056","type":"journal-article","created":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T00:00:17Z","timestamp":1790812817000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Chalcogen\u2010Driven Conformational Control for Room\u2010Temperature Phosphorescence and Zn\n                    <sup>2+<\/sup>\n                    Coordination\u2010Induced Delayed Fluorescence in Phenazine Derivatives"],"prefix":"10.1002","author":[{"given":"Tingwei","family":"Ren","sequence":"first","affiliation":[{"name":"Institute of Molecular Aggregation Science Tianjin University  Tianjin 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China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,30]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/advs.201600484"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.accounts.0c00060"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/agt2.103"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.matt.2020.12.005"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1021\/accountsmr.1c00084"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202205758"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1039\/D2CS00976E"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.202404278"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202206681"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201602604"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201915433"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/flm2.23"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/asia.202100784"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature11687"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41566\u2010022\u201001083\u2010y"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41566\u2010024\u201001508\u2010w"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jlumin.2018.09.047"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202402865"},{"key":"e_1_2_8_20_1","first-page":"816","article-title":"How 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