302554-80-9

Usage

Uses

Used in Organic Light-Emitting Diodes (OLEDs) Industry:
2-Bromo-9,9-dioctyl fluorene is used as a hole transporting material in OLEDs for its ability to facilitate the movement of positive charge carriers, which is essential for the efficient operation of these devices. Its high thermal stability ensures the longevity and reliability of OLEDs in various applications, such as displays and lighting.
Used in Organic Semiconductors Production:
In the field of organic semiconductors, 2-Bromo-9,9-dioctyl fluorene serves as a key component due to its electronic properties. It contributes to the development of materials with improved performance in electronic devices, including transistors and solar cells, by enhancing charge transport and stability.
Used in Advanced Electronic Materials Research:
2-Bromo-9,9-dioctyl fluorene is utilized in research aimed at creating innovative electronic materials with enhanced properties. Its unique characteristics make it a promising candidate for the development of next-generation technologies, such as flexible electronics and high-performance sensors.
It is crucial to handle and dispose of 2-Bromo-9,9-dioctyl fluorene with proper safety precautions and in compliance with all relevant regulations, given its brominated nature.

InChI:InChI=1S/C29H41Br/c1-3-5-7-9-11-15-21-29(22-16-12-10-8-6-4-2)27-18-14-13-17-25(27)26-20-19-24(30)23-28(26)29/h13-14,17-20,23H,3-12,15-16,21-22H2,1-2H3

Upstream product

• 111-83-1 1-bromo-octane 
• 1133-80-8 2-bromo-9H-fluorene 
• 109-72-8 n-butyllithium 
• 198964-46-4 2,7-dibromo-9,9-dioctylfluorene 
• 86-73-7 9H-fluorene 
• 111-87-5 octanol 

Downstream Products

• 428865-62-7 9,9-dioctylfluorene-2-carboxylic acid 
• 428865-56-9 9,9-dioctyl-9H-fluorene-2-carbonitrile 
• 682345-43-3 9,9-dioctyl-9H-fluorenyl-2-formaldehyde 
• 302554-81-0 9,9-dioctylfluorene-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) 
• 1263093-69-1 C₈₇H₁₂₂ 
• 302554-79-6 9,9,9',9'-tetraoctyl-9H,9'H-2,2'-bifluorene 
• 428865-53-6 7,7'-dibromo-9,9,9',9'-tetraoctyl-9H,9'H-2,2'-bifluorene 

Relevant academic research and scientific papers

Bipolar π-conjugation interrupted host polymers by metal-free superacid-catalyzed polymerization for single-layer electrophosphorescent diodes

Novel aromatic bipolar host polymers (P1 and P2) containing pyridine as an electron transporting unit and carbazole and fluorene as hole transporting units in the π-conjugation interrupted polymer backbone have been synthesized by a metal-free superacid-catalyzed polyhydroxyalkylation. The present polymers show good thermal stability, with high glass transition temperatures and decomposition temperatures. The conjugation lengths of the polymers are effectively confined into the repeating units due to the δ-C bond interrupted polymer backbone, giving rise to quite high triplet energy (2.79 eV for P1) and a wide band gap of around 3.33 eV, which make them promising hosts for phosphorescent OLEDs. The results suggest that the strategy of incorporating bipolar blocks into the π-conjugation interrupted polymer backbone can be a promising approach to obtain host polymers with high triplet level for green and even blue phosphorescent polymer light-emitting diodes on a simple device structure and using a solution-processed technique.

Dual functional and multiple substituted fluorescent star-shaped POSS for a 1 + 1 > 2 explosive vapour detection

A dual functional and multiple substituted fluorescent star-shaped POSS has been designed and synthesized. There is effective FRET between the different functional arms. Compared with a single functional probe, the dual functional POSS showed a much better sensing performance to explosive NG and a comparable performance to TNT vapor.

Designed Synthesis and Crystallization of Isomorphic Molecular Gyroscopes with Cell-like Bilayer Self-Assemblies

Two molecular rotors featuring pyridine and fluorobenzene rings as polar rotators and 9-octylfluorenyl stators were synthesized. Their crystal structures were established through SXRD techniques, crystallizing in the monoclinic chiral P21 space group. The supramolecular assemblies of both isomorphs showed an orientation of static dipoles through the crystal lattice and the formation of intriguing 2D layers that resemble cell membranes, a typical example of an amphidynamic system. Small activation energies and the modulation of the first-order hyperpolarizabilities of these compounds as a function of rotational dynamics were revealed through DFT computations at the CAM-B3LYP/M06-2X/cc-pVDZ level of theory and correlated with a potential use of these materials as photonic switches.

Conjugated diene monomer 9-9 - dialkyl fluorene as structural unit and synthesis method thereof

The invention relates to a conjugated diene monomer 9-9 - dialkyl fluorene as a structural unit and a synthesis method thereof, and belongs to the technical field of organic synthesis. 9, 9 - Dialkyl fluorene is the structural unit of the conjugated diene monomer. Herein R is a linear or branched alkyl group having a different number (6 - 30) of carbon atoms, n Shows functional groups of each intermediate, and a functional ethylenic monomer with Suzuki and 9 dialkyl fluorene as a core with different conjugation lengths can be obtained by repeating the bromination and acetylation reduction of the fluorene or 9 - fluorene oligomer. The problem of flexible expansion of chemical reaction of organic small molecules of fluorene units can be solved.

Branched blue-fluorescence molecule, as well as preparation method and application thereof

The invention discloses a branched blue-fluorescence molecule, as well as a preparation method and application thereof. According to the branching blue-fluorescence molecule, a core unit contains heteroatom-nitrogen, so that the fluorescence quantum yield and the carrier transmittability of a light-emitting material can be improved, and a light-emitting device favorably obtains high-efficient andstable light-emitting device performance; meanwhile, a fluorene unit is contained, so that the branched blue-fluorescence molecule has higher fluorescence quantum yield. The branched blue-fluorescencemolecule provided by the invention has a certain space structure, can effectively inhibit fluorescence quenching, has better solubility, can be dissolved by a common organic solvent, and forms a filmthrough spin coating and ink-jet printing or printing so as to be prepared into a light-emitting layer of a light-emitting diode.

Design and synthesis of solution processable green fluorescent D-π-A dyads for OLED applications

New solution processable organic donor-π-acceptor dyads 1 and 2 having electron donating phenoxazine and electron accepting oxadiazole groups have been synthesized. Intramolecular electron communication between the donor and acceptor moieties of these dyads was tuned through changing the substitution pattern at the phenylene linker. The photophysical properties of these dyads have been studied in the solution and film states. These dyads showed green fluorescence and exhibited a positive solvatochromism in the emission spectra, which indicates more polar excited states owing to an efficient charge migration from the donor phenoxazine to the acceptor oxadiazole moiety. The electrochemical, morphological and thermal properties were investigated through cyclic voltammetry, thermogravimetric and atomic force microscopy (AFM) analyses. To understand the electronic structure and band gap of these dyads, density functional theory (DFT) calculations have been performed. Furthermore, we have fabricated the solution processed un-doped electroluminescence devices based on these dyads, which exhibited efficient green emission with Commission Internationale de l'Eclairage (CIE) coordinates of (0.26, 0.49) and (0.27, 0.47) for 1 and 2, respectively, with a luminance maximum of ca. 1751 cd m-2 for the dyad 1, thereby demonstrating its use in organic light emitting diodes (OLEDS).

Design and synthesis of N-substituted perylene diimide based low band gap polymers for organic solar cell applications

In this study, we report on the synthesis and device studies of a series of new copolymers containing N-substituted perylene dimide and dioctylfluorene units as part of the main backbone. A facile synthetic approach avoiding non-selective bromination was used to synthesize the monomer M1 by the reaction of perylene-3,4,9,10-tetracarboxylic dianhydride with 2-amino-7-bromo-9,9-dioctylfluorene. The copolymers P1 and P2 were synthesized by Suzuki polycondensation of M1 with 2,2′-(9,9-dioctyl-9H-fluoren-2,7-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) M2 and 9-(heptadecan-9-yl)-2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole M3, respectively. The copolymer P3 was synthesized by direct arylation polymerization of M1 with 4,7-bis(4-octylthiophen-2-yl)benzo[c]-1,2,5-thiadiazole M4. All the copolymers showed thermal stability greater than 380 °C as evidenced from thermogravimetric analysis. The copolymers exhibited a narrow optical band gap (1.80-2.08 eV) with their UV-visible absorption spectra extending up to the NIR region and they are found to be suitable for use in OSC applications. The molecular weights of the polymers P1-P3 were found to be in the range of 10.68 to 16.02 kg mol-1 as measured from GPC analysis. The surface morphology of the active layers based on P1/P2/P3:P3HT blend films was investigated by AFM and the rms values from height images range from 0.65 to 2.90 nm. The polymers were blended with P3HT to fabricate BHJ solar cells in three different weight ratios i.e. 1 : 1, 1.5 : 1 and 2 : 1 and the best power conversion efficiency was observed for the binary film of P3:P3HT blend device in a 1 : 1 weight ratio which reached up to 1.96% with a Voc of 0.55 V, Jsc of 10.12 mA cm-2 and FF of 34.63% which is among the highest reported for BHJ solar cells with N-substituted PDI based acceptors.

Branched oligophenylenes containing octylphenotiazine and dioctylfluorene groups and phen-1,3,5-triyl branching center

A series of branched oligophenylenes containing the dioctylfluorene and octylphenothiazine moieties was synthesized using the Suzuki reaction applied within the framework of the A2 + B2 + B3 approach. 1,3,5-tris(7-Bromo-9,9-di-n-octylfluoren-2-yl)benzene and 1,3,5-tris- (4-bromophenyl)benzene were used as the branching co-monomers. It was shown that the fluorescence spectra of co-oligomers containing phenothiazine moieties are shifted to the longwavelength region as compared to the spectra of that without such moieties.

Blue oligomer based on dibenzothiophene-S,S-dioxide unit and preparation method and application of blue oligomer

The invention discloses a blue oligomer based on a dibenzothiophene-S,S-dioxide unit and a preparation method and application of the blue oligomer. The blue oligomer is mainly characterized by comprising a fluorene structure unit and the dibenzothiophene-S,S-dioxide structure unit. The preparation method mainly comprises the step of preparation of the blue oligomer based on the dibenzothiophene-S,S-dioxide unit. Due to the fact that the electroluminescence efficiency and the spectral stability are improved by introducing the dibenzothiophene-S,S-dioxide structure unit into the oligomer, the novel oligomer blue-light emitting material is obtained. According to the obtained blue oligomer based on the dibenzothiophene-S,S-dioxide unit, an electroluminescence device prepared through film formation of a solution processing method is high in efficiency, good in spectral stability and suitable for being adopted as a light-emitting layer of a light-emitting diode and a flat-panel displayer.

Bipolar small-molecule luminescent material adopting aromatic heterocyclicindenofluorene unit as core as well as preparation method and application of bipolar small-molecule luminescent material

The invention discloses a bipolar small-molecule luminescent materialadopting an aromatic heterocyclicindenofluorene unit as a core as well as a preparation method and an application of the bipolar small-molecule luminescent material. The bipolar small-molecule luminescent material adopting the aromatic heterocyclicindenofluorene unit as the core is prepared through a Suzuki polymerization reaction, the synthetic method is simple, purification is easy, and industrial application is facilitated. The bipolar small-molecule luminescent material adopting the aromatic heterocyclicindenofluorene unit as the core is better in aromatic heterocyclicindenofluorene planarity and has higher fluorescence quantum yield; meanwhile, the bipolar small-molecule luminescent material adopting the aromatic heterocyclicindenofluorene unit as the core has good solubility, film-forming property and film morphology stability, is suitable for solution processing and printing display and is used for preparation of a luminescent layer of an organic light emitting diode, and annealing treatment is not needed when the luminescent layer based on the bipolar small-molecule luminescent material is used for preparing a device, so that the preparation process is simple.