400607-56-9

Usage

Uses

Used in Organic Chemistry Research:
9,9-Di-n-butylfluorene-2-boronic acid, 97% is used as a reagent in organic chemistry research for its capacity to participate in chemical reactions, facilitating the synthesis of complex organic molecules.
Used in Material Science:
In the field of material science, 9,9-Di-n-butylfluorene-2-boronic acid, 97% is utilized as a precursor in the development of new materials, potentially contributing to the creation of advanced polymers and composites.
Used in Pharmaceutical Industry:
9,9-Di-n-butylfluorene-2-boronic acid, 97% is employed as an intermediate in the synthesis of pharmaceutical compounds, playing a crucial role in the development of new drugs and medicinal agents.
Used in Chemical Synthesis:
This boronic acid compound is used as a building block in chemical synthesis, enabling the formation of a wide range of organic compounds through stable covalent bonding.
Used in Nanotechnology:
9,9-Di-n-butylfluorene-2-boronic acid, 97% is utilized in nanotechnology applications, where its chemical properties can be leveraged to create nanoscale structures and devices with specific functions and properties.

Upstream product

• 88223-35-2 2-bromo-9,9-di-n-butyl-9H-fluorene 
• 5419-55-6 Triisopropyl borate 
• 1133-80-8 2-bromo-9H-fluorene 
• 121-43-7 Trimethyl borate 
• 15069-42-8 9,9-bis(n-butyl)fluorene 
• 86-73-7 9H-fluorene 

Relevant academic research and scientific papers

Tacticity effects in side-chain photoluminescent polymers

Stereoregular side-chain photoluminescent (PL) polymers were synthesized via the stereospecific polymerization of 9,9-dibutyl-2-(4-vinylphenyl)-9H-fluorene. The resulting isotactic, syndiotactic and atactic poly(9,9-dibutyl-2-(4-vinylphenyl)-9H-fluorene)

New bithiazole-functionalized organic photosensitizers for dye-sensitized solar cells

Five bithiazole-based organic dyes D1-D5 containing different electron donor moieties (thiophene, uorene, carbazole, and triarylamine) in the molecular frameworks were synthesized, characterized and applied in dye-sensitized solar cells (DSSCs). The effects of electron-donating moieties of the organic dyes on their photophysical, electrochemical, and photovoltaic properties have been investigated in detail. These dyes exhibit strong charge transfer absorption bands in the visible region. Their redox potential levels were estimated by cyclic voltammetry and found to match well with the charge flow in DSSCs. The combination of broad absorption bands with fairly high extinction coefficients and appropriate redox properties makes these bithiazole-based molecules promising dyes for DSSCs. For solar cell device based on D4, the maximal monochromatic incident photon-to-current conversion efficiency (IPCE) can reach up to 68.5%, with a short-circuit photocurrent density (Jsc) of 9.61 mA cm-2, an open-circuit photovoltage (Voc) of 0.70 V and a fill factor (FF) of 0.70, which results in a power conversion efficiency (PCE) of 4.65% under illumination of an AM 1.5 solar cell simulator.

Novel multifunctional organic semiconductor materials based on 4,8-substituted 1,5-naphthyridine: Synthesis, single crystal structures, opto-electrical properties and quantum chemistry calculation

A series of 4,8-substituted 1,5-naphthyridines (1a-1h) have been successfully synthesised by a Suzuki cross-coupling between 4,8-dibromo-1,5- naphthyridine (4) and the corresponding boronic acids (2a-2h) in the presence of catalytic palladium acetate in yields of 41.4-75.8% and have ben well characterized. They are thermally robust with high phase transition temperatures (above 186 °C). Compounds 1b, 1e and 1f crystallized in the monoclinic crystal system with the space groups P21/c, P21/c and P21/n, respectively. All of them show the lowest energy absorption bands (λmaxAbs: 294-320 nm), revealing low optical band gaps (2.77-3.79 eV). These materials emit blue fluorescence with λmaxEm ranging from 434-521 nm in dilute solution in dichloromethane and 400-501 nm in the solid state. 4,8-Substituted 1,5-naphthyridines 1a-1h have estimated electron affinities (EA) of (2.38-2.72 eV) suitable for electron-transport materials and ionization potentials (IP) of 4.85-5.04 eV facilitate excellent hole-injecting/hole-transport materials properties. Quantum chemical calculations using DFT B3LYP/6-31G* showed nearly identical the lowest unoccupied molecular orbitals (LUMO) of -2.39 to -2.19 eV and the highest occupied molecular orbitals (HOMO) of -5.33 to -6.84 eV. These results demonstrate the 4,8-substituted 1,5-naphthyridines 1a-1h with a simple architecture might be promising blue-emitting (or blue-green-emitting) materials, electron-transport materials and hole-injecting/hole-transport materials for applications for developing high-efficiency OLEDs.

The synthesis, photophysical and electrochemical properties of a series of novel 3,8,13-substituted triindole derivatives

The synthesis and properties of a series of new 3,8,13-substituted triindole derivatives 1a-1e are reported. The 3,8,13-substituted triindoles were thermally robust with high decomposition temperatures (≥405°C) and high melt transitions (219°C-373°C). Compound 5e was crystallized in the monoclinic system with the space group P21/n. These compounds showed UV-Vis absorption (λmaxAbs) in the range of 311-345 nm in DCM solution and 371-391 nm in solid state, and fluorescence maxima (λmaxEm) in the range of 394-412 nm in DCM solution and 416-461 nm in solid state. The fluorescence quantum yields ranged from 0.27 to 0.58. The estimated electron affinities (LUMO levels) and estimated ionization potential (HOMO levels) of compounds 1a-1e are 3.54-3.71 eV and 5.12-5.48 eV, respectively. Quantum chemical calculations using DFT B3LYP/6-31G showed nearly identical LUMO (-0.72 to -1.10 eV) and HOMO (-4.65 to -4.84 eV) values. These results demonstrated that the new 3,8,13-substituted triindoles are promising thermally stable host materials for organic light-emitting diodes with reasonable hole mobility.

Diphenylamino end-capped oligofluorenes with enhanced functional properties for blue light emission: Synthesis and structure-property relationships

A novel series of monodisperse asymmetrically and symmetrically substituted diphenylamino end-capped oligofluorenes, OF(2)-NPhR, R = H or An (An = 9-anthryl) and OF(n)-NPh, n = 2-4, has been synthesized by a convergent approach using palladium-catalyzed S