{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,12]],"date-time":"2026-07-12T06:07:47Z","timestamp":1783836467250,"version":"3.55.0"},"reference-count":44,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2026,5,14]],"date-time":"2026-05-14T00:00:00Z","timestamp":1778716800000},"content-version":"vor","delay-in-days":13,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T00:00:00Z","timestamp":1777593600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["aces.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Chemistry \u0097 An Asian Journal"],"published-print":{"date-parts":[[2026,5]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    2\u2010Arylbenzo\u2010[f]\u2010coumarins represent an underexplored class of extended conjugated systems with remarkable potential in optoelectronics and biomedical research. In this study, we unveil how subtle substituent variations (\u2013H, \u2013OMe, \u2013CH\n                    <jats:sub>3<\/jats:sub>\n                    , \u2013NHAc, \u2013Ph, and extended N\u2010aryl groups) at the 2\u2010position dramatically reshape the structural, vibrational, and photophysical landscapes of benzo[f]coumarins. Single\u2010crystal X\u2010ray diffraction reveals substituent\u2010controlled torsional twists that dictate molecular packing and supramolecular interactions. Vibrational fingerprints, probed by FTIR, Raman spectroscopy, and validated by DFT, show distinct shifts in key marker bands, offering a sensitive handle to track electronic perturbations. Striking photophysical modulations emerge, with unusual emission shifts and biexponential lifetimes pointing to multiple emissive states. Beyond fundamental insights, these molecular nuances translate into function\u2014BC\u2010H and BC\u2010OMe display promising antimicrobial activity against S. aureus and C. albicans, opening avenues toward bioimaging and theranostic applications. By bridging structure\u2013vibration\u2013photophysics\u2013function correlations, this work provides a compelling blueprint for the rational design of next\u2010generation coumarin\u2010based materials with tunable performance.\n                  <\/jats:p>","DOI":"10.1002\/asia.70770","type":"journal-article","created":{"date-parts":[[2026,5,15]],"date-time":"2026-05-15T05:58:51Z","timestamp":1778824731000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Substituent\u2010Driven Modulation of Structural, Photophysical, and Antimicrobial Properties in 2\u2010Arylbenzo\u2010\n                    <i>[f]\u2010<\/i>\n                    coumarins"],"prefix":"10.1002","volume":"21","author":[{"given":"Deblina","family":"Roy","sequence":"first","affiliation":[{"name":"Department of Chemistry, Institute of Science Banaras Hindu University  Varanasi 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