Synthesis, photophysical and electrochemical properties of novel and highly fluorescent difluoroboron flavanone β-diketonate complexes

Paez, Elida Betania Ariza; Curcio, Sergio F.; Neme, Natália Paz; Matos, Matheus J. S.; Corrêa, Rodrigo S.; Pereira, Fabio Junio; Hilário, Flaviane Francisco; Cazati, Thiago; Taylor, Jason G.

doi:10.1039/d0nj03525d

Cited by 4 publications

(3 citation statements)

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“…Luminescent boron difluoride β-diketonates and their synthetic procedures have been described for a long time . These materials generate a great interest in the scientific community because of their photophysical and photochemical behaviors, which have been used for relevant applications . Although the boron atom is a pseudometal and B(III) compounds cannot be considered as metallomesogens, boron difluoride β-diketonates behave as highly emitting materials and, additionally, they can adopt the required molecular shape to induce liquid crystal properties, which opens new opportunities to achieve bifunctional materials with capabilities for photonic devices. − Thus, the B(III) compounds can be considered as a boundary between organic liquid crystals and metallomesogens.…”

Section: Boron Difluoride Complexes: In the Frontier Between Liquid C...mentioning

confidence: 99%

Advanced Functional Luminescent Metallomesogens: The Key Role of the Metal Center

2021

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The use of liquid crystals for the fabrication of displays incorporated in technological devices (TVs, calculators, screens of eBook’s, tablets, watches) demonstrates the relevance that these materials have had in our way of living. However, society evolves, and improved devices are looked for as we create a more efficient and safe technology. In this context, metallomesogens can behave as multifunctional materials because they can combine the fluidic state of the mesophases with properties such as photo and electroluminescence, which offers new exciting possibilities in the field of optoelectronics, energy, environment, and even biomedicine. Herein, it has been established the role of the molecular geometry induced by the metal center in metallomesogens to achieve the self-assembly required in the liquid-crystalline mesophase. Likewise, the effect of the coordination environment in metallomesogens has been further analyzed because of its importance to induce mesomorphism. The structural analysis has been combined with an in-depth discussion of the properties of these materials, including their current and potential future applications. This review will provide a solid background to stimulate the development of novel and attractive metallomesogens that allow designing improved optoelectronic and microelectronic components. Additionally, nanoscience and nanotechnology could be used as a tool to approach the design of nanosystems based on luminescent metallomesogens for use in bioimaging or drug delivery.

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Section: Boron Difluoride Complexes: In the Frontier Between Liquid C...mentioning

confidence: 99%

Advanced Functional Luminescent Metallomesogens: The Key Role of the Metal Center

2021

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Section: Introductionmentioning

confidence: 99%

“…Difluoroboron β-diketonates represent a series of brightly fluorescent materials on account of their distinguished chemical and rich photophysical properties that may confer advantages for a number of potential technological applications. [66][67][68][69][70] In contrast, less is known about the systematic studies and further understanding of boron(III) diketonates with amphiphilic nature for the self-assembly study. It is believed that the pla-narization of the diketonate moiety after coordination to the -BF 2 moiety framework would facilitate extensive π-π interactions for self-assembly, resulting in the preparation of supramolecular assemblies with interesting properties.…”

Section: Introductionmentioning

confidence: 99%

Lamellar assembly and nanostructures of amphiphilic boron(iii) diketonates through suitable non-covalent interactions

et al. 2023

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Solvent-free Microwave-assisted Synthesis of 1-(1,3-diphenyl-1H-pyrazol- 4-yl)-3-(2-hydroxyphenyl) Propane-1,3-dione Using K2CO3 as Green Solid Support

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et al. 2023

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Abstract:: We herein present the synthesis of 1-(1,3-diphenyl-1H-pyrazol-4-yl)-3-(2-hydroxy-substituted phenyl) propane-1,3-dione using microwave irradiation. Reactions were carried out by employing a solvent-free path using K2CO3 as green solid support. The results were compared with those of the conventional method. This microwave-assisted synthesis avoids hazardous solvents and reduces the number of steps and time, providing increased yields. The synthesized products were characterized by IR, 1H NMR, and mass spectrometry.

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Synthesis, photophysical and electrochemical properties of novel and highly fluorescent difluoroboron flavanone β-diketonate complexes

Abstract: Difluoroboron β-diketonates complexes are highly luminescent with extensive properties such as their fluorescence both in solution and in solid state and their high molar extinction coefficients. Due to their rich...

Cited by 4 publications

References 65 publications

Advanced Functional Luminescent Metallomesogens: The Key Role of the Metal Center

Advanced Functional Luminescent Metallomesogens: The Key Role of the Metal Center

Lamellar assembly and nanostructures of amphiphilic boron(iii) diketonates through suitable non-covalent interactions

Solvent-free Microwave-assisted Synthesis of 1-(1,3-diphenyl-1H-pyrazol- 4-yl)-3-(2-hydroxyphenyl) Propane-1,3-dione Using K2CO3 as Green Solid Support

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