18419-48-2

Usage

Uses

Used in Specialty Polymers and Silicone Compounds Production:
Bis(4-bromophenyl)dimethylsilane is used as a reagent in the synthesis of specialty polymers and silicone compounds. Its unique properties allow for the creation of materials with specific characteristics, such as thermal stability and strong covalent bonding.
Used in Electronic Devices Manufacturing:
Bis(4-bromophenyl)dimethylsilane is used in the development of advanced materials for electronic devices. Its ability to form strong covalent bonds and provide thermal stability makes it a valuable component in the production of these devices.
Used in Pharmaceutical and Agrochemical Industries:
Bis(4-bromophenyl)dimethylsilane has been used in the manufacturing of pharmaceuticals and agrochemicals. Its unique properties contribute to the development of new and improved products in these industries.
Safety Precautions:
It is important to handle bis(4-bromophenyl)dimethylsilane with care, as it is hazardous if ingested, inhaled, or absorbed through the skin, and can cause irritation to the eyes and respiratory system. Proper safety measures should be taken to minimize exposure and ensure the safe use of this chemical compound.

Upstream product

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Downstream Products

• 17003-01-9 4,4′-(dimethylsilanediyl)bis-benzoic acid 
• 17961-74-9 di(4-cyanophenyl)dimethylsilane 
• 412914-62-6 4-[(4-bromophenyl)dimethylsilyl]phenylacetylene 
• 410539-59-2 dimethylbis(4-((trimethylsilyl)ethynyl)phenyl)silane 
• 172874-38-3 bis(p-phenylethynylphenyl)dimethylsilane 
• 18537-52-5 me2Si(ph-4-COOme)2 
• 1355359-15-7 bis(4-(pyrazol-1-yl)phenyl)dimethylsilane 

Relevant academic research and scientific papers

Diphenylsilane-containing linear and rigid whole aromatic poly(azomethine)s. Structural and physical characterization

Six new whole aromatic poly(azomethine)s with different rigidity were prepared from three diamines and two dialdehydes, all of them containing a diphenylsilane moiety as a central structural element. Two amines containing biphenyl moieties were obtained for the first time. Thus, the synthesized polymers contain two silicon atoms in the repeat unit, where methyl and/or phenyl groups bonded to them, complete the tetra-valence of the heteroatom. The new materials were structurally characterized by means of FT-IR, solid NMR and elemental analysis. Solubility was tested in several organic solvents at room temperature and 40 °C and the inherent viscosity was determined. GPC analysis showed oligomeric chains of five repetitive units for the tested samples. Additionally, thermal behavior was studied by TGA and DSC analysis, by evidencing materials highly stable and rigid. Band gaps values ranging between 2.71 and 3.14 eV were obtained from UV/Vis and DRS analysis. The spin-coating technique was used to prepare films from soluble samples in NMP and their thicknesses were determined by the ellipsometric method. From these samples, and using AFM and four-point techniques, the effect of the annealing time on the roughness and conductivity of the films was studied. In accordance with the appropriate thermal and conductivity properties of the new silylated materials (which has a whole aromatic structure), could be proposed as an alternative for applications in the optoelectronics field.

Silylated oligomeric poly(ether-azomethine)s from monomers containing biphenyl moieties: Synthesis and characterization

In this study, four new silicon-containing poly(ether-azomethine)s with linear structures were prepared using original silicon and biphenyl moiety-containing monomers: two diamines and two dialdehydes. The oligomeric natures of the samples were established by GPC analysis, which showed chains containing 3 to 5 repetitive units. The monomers and the oligomeric samples were structurally characterized by NMR and FT-IR spectroscopy. The solubilities of the samples in common organic solvents and their thermal behavior enable improvement of their industrial and technological processability. The optical band gaps of the oligomeric samples were estimated from optical measurements (UV-vis), and their electrical behavior in films was determined using the four-point method. The surface arrangements and morphological characteristics of the films were determined via atomic force microscopy measurements. The roughness, area increase percentage and layer stiffness of the films were also measured using this technique.

A Highly Stable Triazole-Functionalized Metal–Organic Framework Integrated with Exposed Metal Sites for Selective CO2 Capture and Conversion

A new triazole-functionalized tetracarboxylic acid ligand (H4L) has been synthesized and utilized for the fabrication of a 3D ZnII organic framework with a Zn4(?COO)6 cluster as the secondary building unit. The

COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF

Provided is a compound which is represented by chemical formula 1, wherein the compound exhibits high luminous efficiency and low driving voltage and increases lifespan of a device. Also, provided are an organic electric element using the same and an electronic device thereof.

Synthesis and characterization of di-, tri- and tetraboronic acids based on phenyl- and thienylsilane cores

The synthesis of a series of di- tri- and tetraboronic acids based on respective phenyl- and thienylsilane cores is described. The optimal protocols involved lithiation of respective arylsilane precursors using either deprotonative lithiation or halogen/lithium exchange with n-BuLi followed by treatment of resultant intermediates with B(Oi-Pr)3 and subsequent hydrolysis, which afforded final products in good yields. X-ray crystal structures of selected diboronic derivatives were determined showing that hydrogen-bonding interactions of B(OH)2 groups are the main factor governing the supramolecular assembly.

New cyano functionalized silanes: Synthesis, characterization and diphenylamine detection

A series of novel tetrahedral silicon-centered cyano functionalized silanes, bis(4-cyanodiphenyl)dimethylsilane (1), bis(4-cyanodiphenyl) diphenylsilane (2), tri(4-cyandiphenyl)methylsilane (3), tri(4-cyandiphenyl) phenylsilane (4), and tetra(4-cyandiphenyl) silane (5), have been synthesized by Suzuki coupling reactions. They all display high thermal stability, and are fluorescent with strong emission in the region of violet to blue. Furthermore, 1-5 all exhibited the linear fluorescent quenching response to diphenylamine (DPA) with the high binding constants up to 1.0 × 106 M -1 in dichloromethane solution, demonstrating the potential application in DPA detection.

Synthesis and characterization of violet light emitting polymer based on fluorene and dimethylsilane

New fluorene based light emitting polymer, poly[(4-(9,9-didecyl-9H-fluoren- 2-yl) phenyl)dimethyl(phenyl)silane] (PFDPS), was synthesized by palladium-catalzed Suzuki coupling reaction. The obtained copolymer was characterized by 1H-NMR, and IR-spectrosco

Tetrahedral silicon-based luminescent molecules: Synthesis and comparison of thermal and photophysical properties by various effect factors

A series of luminescent molecules were presented employing the tetrahedral structural motif of the silicon atom, which further connected different N-containing heterocycle functional groups in their periphery using phenyl rings as the bridges. These compounds included three kinds of N-heterocycle functional silanes: imidazole derivatives (1a-h), pyrazole derivatives (2a-e) and benzimidazole derivatives (3a-b), and their structures were fully characterized by FT-IR, 1H NMR, 13C NMR and HRMS. The TGA results indicate that they all exhibit high thermal stabilities. The photophysical properties demonstrate that they are fluorescent in the violet-blue region and could be potentially applied as blue emitters for organic light-emitting diodes (OLEDs). The effect factors of sort, disposition and number of substituent groups and N-containing heterocycle functional groups on their thermal and photophysical properties were investigated. Molecular calculations were also performed to support the experimental results. Moreover, the computational results reveal that these compounds all exhibit relatively large HOMO-LUMO band gaps with the range from 4.82 eV (2d) to 5.19 eV (1a and 2c), making them become promising candidates as host materials for emitters and hole/electron blocking materials in OLEDs display.

Tetrahedral silicon-centered imidazolyl derivatives: Promising candidates for OLEDs and fluorescence response of Ag (I) ion

A series of novel tetrahedral silicon-centered imidazolyl derivatives, Bis(4-(imidazol-1-yl)phenyl)dimethylsilane (1), Tri(4-(imidazol-1-yl)phenyl) methyl silane (2), Bis(4-(imidazol-1-yl)phenyl)diphenylsilane (3), Tri(4-(imidazol-1-yl)phenyl)phenylsilane (4), [Bis(4-(imidazol-1-yl)phenyl)](4- bromophenyl)phenylsilane (5) and [Tri(4-(imidazol-1-yl)phenyl)](4-bromophenyl) silane (6) have been synthesized and characterized by FTIR, 1H NMR, 13C NMR and mass spectroscopy. They all display high thermal stability, are fluorescent with emission in the region of violet to blue, and possess large HOMO-LUMO energy gaps ranging from 4.9585 to 5.1879 eV, which could be potentially used as blue emitters or hole blocking materials in OLEDs. Moreover, the metal ion titrations based on Ag (I) and compounds 1-4 reveal that these ligands show distinguishable fluorescence response with increasing of Ag (I) ions.

Poly(silyleneethynylenephenylene) and poly(silylenephenyleneethynylenephenylene)s: Synthesis and photophysical properties related to charge transfer

Novel poly(dimethylsilyleneethynylenephenylene) and poly(dimethyl (or diphenyl) silylenephenyleneethynylenephenylene)s without diyne defects were synthesized by using the Pd/Cu-catalyzed AB-type coupling reaction. 6's showed small but clear π-to-σ charge-transfer absorption bands at longer wavelengths (>340 nm) than those of π-π* absorption bands (max ca. 370 nm) with a large Stokes shift. On the other hand, when excited at the charge-transfer absorption wavelengths, 6's exhibited only the intramolecular charge-transfer emission with a maximum above 390 nm. This suggests that the indigo blue light emission of 6's is due to the charge-transfer phenomenon and not to the locally excited π* state. The charge-transfer character of 6's was clearly verified by the shift of emission in polar solvents.