Preparation of chemosensor materials based on silica nanoparticles with covalently anchored fluorophores by inkjet printing

Ionov, D. S.; Yurasik, G. A.; Molchanov, S. P.; Sazhnikov, V. A.; Aristarkhov, V. M.; Kononevich, Yuriy N.; Meshkov, I. B.; Voronina, Natalia; Muzafarov, А. М.; Алфимов, М. В.

doi:10.1134/s199507801604008x

Cited by 15 publications

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“…Functional cyclic stereoregular cis -tetracyclosiloxanes 1 a,b were prepared by the hydrolytic condensation reaction of trifunctional alkoxysilanes in the presence of alkali metal ions followed by the reaction of the obtained siloxanolate salt with dimethylchlorosilane by the method described earlier . The functional allyl-DBMBF 2 precursors 2 a,b were synthesized by the reaction of the corresponding β-diketones with boron trifluoride diethyl etherate earlier by us. , The organosilicon model compounds 3 a,b and dyads 4 a–d (Figure ), which were used for comparing optical properties, were prepared from allyl-DBMBF 2 2 a,b by the hydrosilylation reaction with mono- or difunctional hydridesiloxanes using the method described earlier by us …”

Section: Results and Discussionmentioning

confidence: 99%

“…89 The functional allyl-DBMBF 2 precursors 2 a,b were synthesized by the reaction of the corresponding β-diketones with boron trifluoride diethyl etherate earlier by us. 88,90 The organosilicon model compounds 3 a,b and dyads 4 a−d (Figure 1), which were used for comparing optical properties, were prepared from allyl-DBMBF 2 2 a,b by the hydrosilylation reaction with mono-or difunctional hydridesiloxanes using the method described earlier by us. 88 Tetrachromophoric dyes 5 a−d were obtained from the corresponding functional stereoregular cis-tetracyclosiloxanes 1 a,b and allyl-DBMBF 2 derivatives 2 a,b by the hydrosilylation reaction in the presence of Karstedt's catalyst in toluene at 25 °C according to Scheme 1.…”

Section: ■ Introductionmentioning

confidence: 99%

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Tetrachromophoric Derivatives of Dibenzoylmethanatoboron Difluoride Based on Stereoregular Cyclotetrasiloxanes: Synthesis and Properties

et al. 2023

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A series of new tetrachromophoric systems based on stereoregular tetracyclosiloxanes and dibenzoylmethanatoboron difluoride derivatives have been synthesized and characterized by a complex of physicochemical methods. The photophysical properties of the synthesized compounds are studied by electronic absorption, steady-state, and time-resolved fluorescence spectroscopy. In the synthesized compounds, four dibenzoylmethanatoboron difluoride (DBMBF2)-based fluorophores are in an all-cis arrangement with respect to a cyclotetrasiloxane scaffold. DFT calculations predict that they can form H-type dimers, trimers, or tetramers with an antiparallel orientation of their ground-state dipole moments. Under UV excitation, solutions of these compounds in polar and nonpolar solvents exhibit complex fluorescence consisting of monomer- and excimer-like emissions with different lifetimes. Global fitting analysis reveals the presence of at least four kinetically distinguishable species in the excited state. The studied compounds in solutions have CIE chromaticity coordinates very close to the white color point and are promising objects for the development of next-generation single-emission materials for white illumination.

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Section: Results and Discussionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Tetrachromophoric Derivatives of Dibenzoylmethanatoboron Difluoride Based on Stereoregular Cyclotetrasiloxanes: Synthesis and Properties

et al. 2023

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“…61 One of the most promising applications of DBMBF 2 derivatives is the detection of trace amounts of vapours of benzene, toluene, and xylenes (BTX). [61][62][63][64][65][66][67][68][69][70][71][72] Despite the fact that DBMBF 2 derivatives have been well studied to date, there is almost no data on the use of these chromophores in RET systems, with the exception of a few ref. 73.…”

Section: Introductionmentioning

confidence: 99%

“…61 One of the most promising applications of DBMBF 2 derivatives is the detection of trace amounts of vapours of benzene, toluene, and xylenes (BTX). 61–72…”

Section: Introductionmentioning

confidence: 99%

Novel DBMBF₂-BODIPY dyads connectedviaa flexible linker: synthesis and photophysical properties

et al. 2022

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Tetrahedral Silicon‐Centered Dibenzoylmethanatoboron Difluorides: Synthesis, Crystal Structure, and Photophysical Behavior in Solution and the Solid State

et al. 2020

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Four tetrahedral silicon‐centered derivatives of dibenzoylmethanatoboron difluoride (DBMBF2) were synthesized and characterized. Their structural and optical features both in solution and the solid state were investigated by using X‐ray crystallography, steady‐state and time‐dependent spectroscopy, and DFT‐based calculations. In dilute solutions, the molar absorption coefficient increases from 40500 to 175200 M−1 cm−1 as the number of DBMBF2 fragments in a molecule increases from one to four, while, in contrast, the nonradiative rate constant of fluorescence decay decreases from 0.49 to 0.34. In the solid state, absorption and emission spectra depend on the degree of crystallinity and microcrystal size. The tris‐DBMBF2 derivative forms fully overlapping dimeric structures that exhibit excimer‐like fluorescence, which is accurately predicted by the quantum‐chemical calculations. The mono‐DBMBF2 derivative exhibits fully reverse mechanofluorochromic behavior.

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Preparation of chemosensor materials based on silica nanoparticles with covalently anchored fluorophores by inkjet printing

Cited by 15 publications

References 16 publications

Tetrachromophoric Derivatives of Dibenzoylmethanatoboron Difluoride Based on Stereoregular Cyclotetrasiloxanes: Synthesis and Properties

Tetrachromophoric Derivatives of Dibenzoylmethanatoboron Difluoride Based on Stereoregular Cyclotetrasiloxanes: Synthesis and Properties

Novel DBMBF₂-BODIPY dyads connectedviaa flexible linker: synthesis and photophysical properties

Tetrahedral Silicon‐Centered Dibenzoylmethanatoboron Difluorides: Synthesis, Crystal Structure, and Photophysical Behavior in Solution and the Solid State

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Preparation of chemosensor materials based on silica nanoparticles with covalently anchored fluorophores by inkjet printing

Cited by 15 publications

References 16 publications

Tetrachromophoric Derivatives of Dibenzoylmethanatoboron Difluoride Based on Stereoregular Cyclotetrasiloxanes: Synthesis and Properties

Tetrachromophoric Derivatives of Dibenzoylmethanatoboron Difluoride Based on Stereoregular Cyclotetrasiloxanes: Synthesis and Properties

Novel DBMBF2-BODIPY dyads connectedviaa flexible linker: synthesis and photophysical properties

Tetrahedral Silicon‐Centered Dibenzoylmethanatoboron Difluorides: Synthesis, Crystal Structure, and Photophysical Behavior in Solution and the Solid State

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Novel DBMBF₂-BODIPY dyads connectedviaa flexible linker: synthesis and photophysical properties