Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 121, Issue 10, Pages 5747-5752Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.7b00488
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Funding
- GENCI-IDRIS (Orsay, France) [100339]
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Aggregation-induced emission can often be explained via the restriction of intramolecular rotation paradigm and/or excimer formation. The enhanced luminescence recently observed for aggregates of fluorenone derivatives are no exception. In this work, however, we use a recently developed excited-state electrostatic embedding technique to demonstrate that enhanced emission in diphenylfluorenone can be rationalized by considering a single-molecule process, in which the field induced by the crystalline environment at the excited state enhances the relative brightness of otherwise poorly emissive states, resulting in both enhanced fluorescence and a substantial bathochromic shift in comparison with emission in dilute solution.
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