Luminescence of solvate of boron difluoride dibenzoylmethanate with benzene: Aggregates formation

Федоренко, Е. В.; Мирочник, А. Г.; L’vov, I. B.; Vovna, V. I.

doi:10.1016/j.saa.2013.10.016

Cited by 27 publications

(11 citation statements)

References 38 publications

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“…Crystal data for C 23 Crystal data for C 19 (19), c = 7.9430 (7) , V = 1726.6(3) 3 , Z = 4, 1 calcd = 1.262 gcm À3 , m = 0.094 mm À1 ,M o Ka radiation, l = 0.71070 , T = 298 K, 2q max = 55.08,1 5820 reflections measured, 2014 unique reflections, R int = 0.083, 118p arameters, R 1 = 0.086 (I > 2sI), wR 2 = 0.297 (all data), CCDC-1412047.…”

Section: Preparation Of Organic Substancesmentioning

confidence: 99%

“…Organoboron complexes [11][12][13][14][15][16][17][18][19][20][21][22] have attracted growing attention as organic fluorescent materials owing to several advantages that include ease of preparation, large molar extinction coefficients, and high FL quantum yields (F FL ). Among the substancesi nt his family,d ibenzoylmethanatoborond ifluoride (P1 BF 2 ,S cheme 1) is an especially interesting compound from the viewpoint of probing relationshipsb etween aggregation mode and FL properties.…”

Section: Introductionmentioning

confidence: 99%

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New Fluorescence Domain “Excited Multimer” Formed upon Photoexcitation of Continuously Stacked Diaroylmethanatoboron Difluoride Molecules with Fused π‐Orbitals in Crystals

Sakai

Ohta

Yoshimoto

et al. 2015

Chemistry A European J

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The crystal-packing structures of seven derivatives of diaroylmethanatoboron difluoride (1 a-gBF2 ) are characterized by no overlap of the π-conjugated main units of two adjacent molecules (type I), overlap of the benzene ring π-orbitals of two adjacent molecules (type II), and overlap of the benzene and dihydrodioxaborinine rings π-orbitals of adjacent molecules (type III). The crystal-packing structures govern the fluorescence (FL) properties in the crystalline states. The FL domain that is present in type I crystals, in which intermolecular orbital interactions are absent, leads to excited monomer-like FL properties. In the case of the type II crystals, the presence of intermolecular overlap of the benzene rings π-orbitals generates new FL domains, referred to as "excited multimers", which possess allowed S0 -S1 electronic transitions and, as a result, similar FL lifetimes at longer wavelengths than the FL of the type I crystals. Finally, intermolecular overlap of the benzene and dihydrodioxaborinine ring π-orbitals in the type III crystals leads to "excited multimer" domains with forbidden S0 -S1 electronic transitions and longer FL lifetimes at similar wavelengths as that in type I crystals.

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Section: Preparation Of Organic Substancesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

New Fluorescence Domain “Excited Multimer” Formed upon Photoexcitation of Continuously Stacked Diaroylmethanatoboron Difluoride Molecules with Fused π‐Orbitals in Crystals

Sakai

Ohta

Yoshimoto

et al. 2015

Chemistry A European J

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“…Как показано в [3], изменяя концентрацию раствора β-дикетонатов дифторида бора можно управ-лять цветом люминесценции. β-Дикетонаты дифторида бора способны образовывать ярко люминесцирующие агрегаты, возбуждение которых происходит на длинно-волновом краю спектра поглощения [7].…”

Section: Introductionunclassified

Люминесенция Полимерной Композиции, Допированной Хелатами Бора. Механизм Сенсибилизации Люминесценции

Хребтов¹,

Федоренко²,

Лим³

et al. 2018

Журнал Технической Физики

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“…Currently, difluoroboron bdiketonate complexes possess impressive photophysical and photochemical properties due to their large molar extinction coefficients, two-photon absorption activity, high emission quantum yields, and sensitivity to the surrounding medium [2][3][4]. Also, many applications have been found in photochemical reagents, nonlinear optics, two-photon materials, light-emitters, and chemical and biochemical sensors [5][6][7][8][9][10][11]. Hence, the design, synthesis, and photoluminescence properties of many novel difluoroboron complexes with b-diketone ligands have been studied in recent years [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and photoluminescence properties of difluoroboron complexes with bis-β-diketone ligands

et al. 2015

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Some novel difluoroboron bis-b-diketonates containing a pyridyl moiety were synthesized from diethyl 2,6-pyridinedicarboxylate via Claisen condensation with the corresponding aryl methyl ketones and followed by complexation with boron trifluoride etherate. Their spectroscopic behaviors were studied by FTIR, 1 H NMR, UV-Vis, and fluorescence spectroscopic techniques. The results indicated that difluoroboron bis-b-diketonates exhibited violet or blue fluorescence emission at 428-454 nm under UV illumination in DMSO and possessed high extinction coefficients. It was found that the nature of the substituents at benzene ring in bis-bdiketone ligands had a significant impact on the photoluminescence behaviors of difluoroboron complexes. The complex 5b exhibited the strongest photoluminescence intensity and highest quantum yield (U u = 0.93), due to two strong electrondonating methoxyl moieties in molecule and the compound 4b displayed the lowest photoluminescence intensity and quantum yield, assigned to the heavy atom effect of the chlorine atom in its molecule. The photoluminescence intensity and quantum yield of these difluoroboron complexes decreased in the sequence, 5b [ 2b [ 1b [ 3b [ 4b.

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Luminescence of solvate of boron difluoride dibenzoylmethanate with benzene: Aggregates formation

Cited by 27 publications

References 38 publications

New Fluorescence Domain “Excited Multimer” Formed upon Photoexcitation of Continuously Stacked Diaroylmethanatoboron Difluoride Molecules with Fused π‐Orbitals in Crystals

New Fluorescence Domain “Excited Multimer” Formed upon Photoexcitation of Continuously Stacked Diaroylmethanatoboron Difluoride Molecules with Fused π‐Orbitals in Crystals

Люминесенция Полимерной Композиции, Допированной Хелатами Бора. Механизм Сенсибилизации Люминесценции

Synthesis, characterization, and photoluminescence properties of difluoroboron complexes with bis-β-diketone ligands

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