Synthesis and photoluminescence properties of BF2 complexes with 1,3-diketone ligands

Ono, Katsuhiko; Yoshikawa, Kyohei; Tsuji, Yujiro; Yamaguchi, Hiroyuki; Uozumi, Rie; Tomura, Masaaki; Taga, Keijiro; Saito, Katsuhiro

doi:10.1016/j.tet.2007.07.004

Cited by 118 publications

(63 citation statements)

References 27 publications

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“…Various types of asymmetric complexes and tunable emissions have been reported. [24][25][26][27][28][29][30][31][32][33][34] Emission colors can be modulated both in the solution and in solid states. In addition, a photo-responsive ketoiminate was obtained using a dithienylethene unit.…”

Section: Building Blocks For Constructing Nanostructures and Supramolmentioning

confidence: 99%

Recent progress of optical functional nanomaterials based on organoboron complexes with β-diketonate, ketoiminate and diiminate

2015

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The synthesis and application of organoboron complexes are a highly relevant topic owng to their unique characteristics. Based on their emissive properties, these complexes have been used to make novel optical materials and devices; boron β-diketonate is a simple and robust organoboron complex. From a series of recent studies, unique and versatile optical properties have been reported. In this review, we introduce the results of primarily recent studies on boron diketonate and related compounds containing polymers and particularly explain their optical properties. Initially, the multi-emission of boron diketonate derivatives and its application to biotechnology are explained. Next, the formation of nanostructures and its emission properties are demonstrated. The modulation of optical properties by mechanical stress is also presented. Finally, recent progress in the development of solid-emissive materials are shown with boron diketonates and their derivatives, which have aggregation-induced emission properties. The versatility of boron diketonates as a building block for the preparation of functional optical materials is the focus of this review.

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Section: Building Blocks For Constructing Nanostructures and Supramolmentioning

confidence: 99%

Recent progress of optical functional nanomaterials based on organoboron complexes with β-diketonate, ketoiminate and diiminate

2015

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“…Difluoroboron complexes [1][2][3][4] are attractive targets in research and development of materials for opto-electronic devices [5][6][7] and in biomedicinal applications [3,[8][9][10][11][12][13][14] as they possess electron-accepting properties and strong fluorescence with high quantum yields. However most of the reported difluoroboron complexes show very small stokes shifts and hardly show any solid state fluorescence.…”

Section: Introductionmentioning

confidence: 99%

Fluorescent difluoroboron-curcumin analogs: An investigation of the electronic structures and photophysical properties

Margar

Rhyman

Ramasami

et al. 2016

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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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].…”

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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Synthesis and photoluminescence properties of BF2 complexes with 1,3-diketone ligands

Cited by 118 publications

References 27 publications

Recent progress of optical functional nanomaterials based on organoboron complexes with β-diketonate, ketoiminate and diiminate

Recent progress of optical functional nanomaterials based on organoboron complexes with β-diketonate, ketoiminate and diiminate

Fluorescent difluoroboron-curcumin analogs: An investigation of the electronic structures and photophysical properties

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

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