title: Luminescence of solvate of boron difluoride dibenzoylmethanate with benzene: aggregates formation.
abstract: The concentration dependence of spectral-luminescence properties of solutions boron difluoride dibenzoylmethanate (DBMBF2) in benzene and chloroform has been studied through stationary and time-resolved emission spectroscopy methods. The formation of J-aggregates in the solution of DBMBF2 in chloroform has been revealed and a crystalline adduct of DBMBF2 with benzene has been obtained. A bright blue adduct luminescence is due only to the luminescence of J-aggregates, unlike the crystals of DBMBF2, for which the luminescence of excimers and J-aggregates has been observed. The quantum chemistry simulation of geometric and electronic structure of the DBMBF2 С6Н6 solvate has been performed, and the absorption spectra of DBMBF2 and it is adduct have been calculated.
authors.affiliation: Institute of Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100-letiya Vladivostoka, Vladivostok 690022, Russian Federation. Electronic address: gev@ich.dvo.ru.
authors.forename: E V
authors.initials: EV
authors.lastname: Fedorenko
authors.affiliation: Institute of Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100-letiya Vladivostoka, Vladivostok 690022, Russian Federation.
authors.forename: A G
authors.initials: AG
authors.lastname: Mirochnik
authors.affiliation: Far Eastern Federal University, 8, Sukhanova Street, Vladivostok 690950, Russian Federation.
authors.forename: I B
authors.initials: IB
authors.lastname: Lvov
authors.affiliation: Far Eastern Federal University, 8, Sukhanova Street, Vladivostok 690950, Russian Federation.
authors.forename: V I
authors.initials: VI
authors.lastname: Vovna
mesh_terms: D001554:Benzene / Q000737:chemistry*; D001896:Boron Compounds / Q000737:chemistry*; D019281:Dimerization; D049449:Luminescence; D049408:Luminescent Agents / Q000737:chemistry*; D008697:Methane / Q000737:chemistry*; D008958:Models, Molecular
chemical_list: D001896:Boron Compounds; D049408:Luminescent Agents; C579460:boron difluoride; D001554:Benzene; D008697:Methane
keywords: Adduct; Boron difluoride β-diketonates; Dibenzoylmethanate of boron difluoride; J-aggregates; Luminescence; Quantum chemical modeling