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Nevertheless, they still have challenges such as aggregation\u2010induced emission quenching and spectral broadening. Overcoming these obstacles requires an in\u2010depth understanding of the correlations among the alterations in their geometries, packing structures, and molecular vibrations and their corresponding changes in their photoluminescence (PL) properties. Herein, it is demonstrated that high\u2010pressure infrared, UV\u2212visible absorption, and fluorescence spectroscopies can be combined with computational results to elucidate the influence of the subtle structural variations on the exciton\u2012vibration couplings and their PL properties. An ortho\u2010carborane\u2010decorated MR emitter (BNC) is a piezochromic molecule and exhibits emission enhancement under high pressure. A thorough analysis of the in situ experimental measurements and calculated results reveals that the pressure\u2010induced changes in the exciton binding energy and exciton\u2012vibration couplings are responsible for the unusual piezochromism. This research provides insights into the structure\u2012fluorescence relationship and potential for high\u2010pressure techniques to optimize MR materials for advanced organic light\u2010emitting diodes (OLEDs) applications.<\/jats:p>","DOI":"10.1002\/advs.202411765","type":"journal-article","created":{"date-parts":[[2025,1,27]],"date-time":"2025-01-27T12:40:36Z","timestamp":1737981636000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Pressure\u2010Induced Emission Enhancement of Multi\u2010Resonance o\u2010Carborane Derivatives via Exciton\u2012Vibration Coupling Suppression"],"prefix":"10.1002","volume":"12","author":[{"given":"Zening","family":"Li","sequence":"first","affiliation":[{"name":"Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Department of Chemistry Zhejiang Normal University  Yingbin Road No.688 Jinhua 321004 P. R. 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