{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T19:22:31Z","timestamp":1792092151656,"version":"4.4.0"},"reference-count":54,"publisher":"Wiley","issue":"35","license":[{"start":{"date-parts":[[2026,6,22]],"date-time":"2026-06-22T00:00:00Z","timestamp":1782086400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,6,22]],"date-time":"2026-06-22T00:00:00Z","timestamp":1782086400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["RS\u20102024\u201000442105"],"award-info":[{"award-number":["RS\u20102024\u201000442105"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Angew Chem Int Ed"],"published-print":{"date-parts":[[2026,8,24]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Developing birefringent materials that simultaneously exhibit short ultraviolet (UV) cutoff edges and large birefringence is highly desirable but remains challenging. Here, we report a peroxide\u2010containing solvate crystal,\n                    <jats:bold>4HP<\/jats:bold>\n                    \u00b7H\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>2<\/jats:sub>\n                    (\n                    <jats:bold>4HPO2<\/jats:bold>\n                    ,\n                    <jats:bold>4HP =<\/jats:bold>\n                    4\u2010hydroxypyridine), obtained by incorporating H\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>2<\/jats:sub>\n                    into the\n                    <jats:bold>4HP<\/jats:bold>\n                    lattice through a mild aqueous\u2010solution method.\n                    <jats:bold>4HPO2<\/jats:bold>\n                    exhibits a solar\u2010blind UV cutoff edge at 278\u00a0nm together with a giant experimental birefringence of 0.609@546\u00a0nm, representing an approximately 14\u2010fold enhancement compared with pristine\n                    <jats:bold>4HP<\/jats:bold>\n                    . Structural analysis reveals that H\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>2<\/jats:sub>\n                    induces a pronounced reorganization of the\n                    <jats:bold>4HP<\/jats:bold>\n                    packing, converting a nearly orthogonal arrangement into an ordered, nearly parallel alignment through strengthened hydrogen\u2010bonding interactions. Combined experimental and theoretical analyses indicate that the aligned\n                    <jats:bold>4HP<\/jats:bold>\n                    sublattice serves as the dominant source of optical anisotropy, whereas H\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>2<\/jats:sub>\n                    mainly acts as a hydrogen\u2010bond\u2010directed structural modulator with a secondary direct optical contribution. The reordered packing also creates an anisotropic local\u2010field environment that further amplifies the molecular polarizability anisotropy (\n                    <jats:italic>\u0394\u03b1<\/jats:italic>\n                    ). These findings highlight peroxide\u2010assisted solvate engineering as an effective strategy for tuning packing and optical anisotropy and provide a promising design principle for developing ultraviolet birefringent materials.\n                  <\/jats:p>","DOI":"10.1002\/anie.2031892","type":"journal-article","created":{"date-parts":[[2026,6,22]],"date-time":"2026-06-22T13:49:58Z","timestamp":1782136198000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Peroxide\u2010Assisted Solvate Engineering Enables Record\u2010High Birefringence in a Solar\u2010Blind Transparent Crystal"],"prefix":"10.1002","volume":"65","author":[{"given":"Yang","family":"Li","sequence":"first","affiliation":[{"name":"Department of Chemistry Sogang University  Seoul South Korea"},{"name":"Anhui Province Key Laboratory of Conservation and Utilization for Dabie Mountain Special Bio\u2010Resources West Anhui University  Luan 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