Luminescence of boron difluoride ditoluoylmethanate. Formation of J-aggregatess
Mirochnik A. G.1, Fedorenko E.V. 1, Beloliptsev A. Yu.1
1Institute of Chemistry, Far East Branch, Russian Academy of Sciences, Vladivostok, Russia
Email: gev@ich.dvo.ru, beloliptsev@ich.dvo.ru

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The processes of the formation of J-aggregates during the dissolution 2,2-difluoro-4,6-di(4'-methylphenyl)-1,3,2-dioxaborine crystals ( 1) and their subsequent dissociation have been studied by absorption and luminescence spectroscopy and quantum-chemical modeling. It is shown that two luminescent centers are observed in the solution 1: monomeric luminescence and luminescence of J-aggregates (dual luminescence). Evolution of absorption, excitation and luminescence spectra is observed over time, indicating a slow dissociation of J-aggregates. Keywords: luminescence, absorption spectra, boron difluoride complexes, J-aggregates.
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