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Nevertheless, simultaneously enhancing polarized charge separation, improving N\n                    <jats:sub>2<\/jats:sub>\n                    capture, and optimizing catalytic efficiency remains a critical challenge in advancing the performance of such nanoreactors. Herein, we successfully constructed a spatially confined Fe\u2010doped BiOBr chiral mesostructure by designing acid\u2013base Lewis coordination to enable multidentate coordination between Bi\n                    <jats:sup>3+<\/jats:sup>\n                    and sorbitol. This precisely engineered helical surface\u2010confined architecture not only elucidates the influence of confined surface geometry on N\n                    <jats:sub>2<\/jats:sub>\n                    adsorption behavior but also demonstrates that the asymmetric dipole field enhances anisotropic charge separation during photocatalysis, leading to a significantly improved photocatalytic NH\n                    <jats:sub>3<\/jats:sub>\n                    production performance. Notably, the optimized chiral Fe\u2010BiOBr confined reactor exhibits an approximately 8\u2010fold enhancement in photoactivity compared to pristine BiOBr under simulated solar irradiation. This work establishes a paradigm for the design of chiral mesostructured photocatalysts, wherein the helical surface architecture serves as an intrinsic component of the confined reactor, enabling effective decoupling of the asymmetric dipole field effect from confinement catalysis. This strategy provides a scalable pathway toward the development of efficient solar\u2010to\u2010chemical conversion systems.\n                  <\/jats:p>","DOI":"10.1002\/anie.9685756","type":"journal-article","created":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T04:24:46Z","timestamp":1787804686000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Asymmetric Dipole\u2010Field Engineering in Chiral Mesostructures for Efficient Photocatalytic N\n                    <sub>2<\/sub>\n                    Reduction"],"prefix":"10.1002","volume":"65","author":[{"given":"Xin","family":"Huang","sequence":"first","affiliation":[{"name":"Key Laboratory of Colloid and Interface Chemistry Ministry of Education School of Chemistry and Chemical Shandong University  Jinan P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2197-8062","authenticated-orcid":false,"given":"Jingjing","family":"Wei","sequence":"additional","affiliation":[{"name":"Key Laboratory of Colloid and Interface Chemistry Ministry of Education School of Chemistry and Chemical Shandong University  Jinan P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5012-9852","authenticated-orcid":false,"given":"Zhijie","family":"Yang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Colloid and Interface Chemistry Ministry of Education School of Chemistry and Chemical Shandong University  Jinan P.R. 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