91371-12-9

Basic information

• Product Name: 4,4'-dibroMo-2,2'-dinitrobiphenyl
• Synonyms: 4,4'-dibroMo-2,2'-dinitrobiphenyl;4,4'-DibroMo-2,2'-dinitro-1,1'-biphenyl;1,1'-Biphenyl, 4,4'-dibroMo-2,2'-dinitro-;4-bromo-1-(4-bromo-2-nitrophenyl)-2-nitrobenzene
• CAS NO: 91371-12-9
• Molecular Formula: C₁₂H₆Br₂N₂O₄
• Molecular Weight: 401.99504
• Mol File: 91371-12-9.mol
• Article Data: 46

Chemical Properties

• Melting Point: 145-150°C
• Boiling Point: 452.9±40.0 °C(Predicted)
• Appearance: /
• Density: 1.907±0.06 g/cm3(Predicted)
• Storage Temp.: Sealed in dry,Room Temperature
• CAS DataBase Reference: 4,4'-dibroMo-2,2'-dinitrobiphenyl(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-dibroMo-2,2'-dinitrobiphenyl(91371-12-9)
• EPA Substance Registry System: 4,4'-dibroMo-2,2'-dinitrobiphenyl(91371-12-9)

Safety Data

• Hazard Codes: Xi,N
• Statements: 37/38-41-50
• Safety Statements: 26-39-61
• RIDADR: UN 3077 9 / PGIII
• WGK Germany: 3
• Hazardous Substances Data: 91371-12-9(Hazardous Substances Data)

Usage

General Description

4,4'-dibromo-2,2'-dinitrobiphenyl is a chemical compound with the molecular formula C12H6Br2N2O4. It is a derivative of biphenyl, a common organic compound, and is characterized by the presence of two bromine atoms and two nitro groups. 4,4'-dibroMo-2,2'-dinitrobiphenyl is used as a precursor in the synthesis of various organic molecules and as a building block in organic chemistry. It has potential applications in the production of pharmaceuticals, agrochemicals, and dyes. Additionally, 4,4'-dibromo-2,2'-dinitrobiphenyl is also used in research and development as a reference standard for analytical testing and as a reagent in chemical reactions. However, it is important to handle this compound with care, as it is a potential irritant and may be harmful if ingested or inhaled.

Upstream product

• 5855-71-0 2,2'-dinitrobenzidine 
• 83834-10-0 3,7-dibromodibromodibenzo[b,d]thiophene 
• 92-86-4 4-(4-bromophenyl)bromobenzene 
• 3460-18-2 1,4-dibromo-2-nitrobenzene 
• 33948-36-6 2-iodocyclohex-2-en-1-one 
• 7664-93-9 sulfuric acid 
• 2436-96-6 1-nitro-2-(2-nitrophenyl)benzene 

Downstream Products

• 136630-36-9 4,4′-dibromo-[1,1′-biphenyl]-2,2′-diamine 
• 1356238-89-5 3,7-dibromo-5-phenyl-5H-benzo[b]phosphindole-5-oxide 
• 1262528-41-5 C₂₀H₁₇NO₂Si 
• 1228595-79-6 3,7-dibromo-5,5-dimethyl-5H-dibenzo[b,d]silole 
• 958293-23-7 5,5-dioctyl-3,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5H-dibenzo[b,d]silole 
• 200878-47-3 2,7-dicyano-9-methylcarbazole 
• 186192-99-4 2,7-dicyanocarbazole 
• 33763-36-9 3,7-dicyano-dibenzofuran 

Relevant articles and documents

Synthesis and properties of air-stable n-channel semiconductors based on MEH-PPV derivatives containing benzo[c]cinnoline moieties

In this study we synthesized three novel poly[2-methoxy-5-(2-ethylhexyloxy) -1,4-phenylenevinylene] (MEH-PPV) derivatives that differ in terms of their ratios of heterocyclic benzo[c]cinnoline moieties: P50 containing only MEH-PPV/benzo[c]cinnolinevinylene (BZCV) alternating segments and P25 and P10 containing both MEH-PPV/BZCV alternating segments and MEH-PPV block segments. UV-Vis and PL spectra of these polymers revealed values of λUVmax and λPLmax that ranged from 440 to 489 and from 492 to 551 nm, respectively; these wavelengths blue-shifted upon incorporating additional benzo[c]cinnoline moieties. We also observed energy transfer from the MEH-PPV/BZCV alternating segments to the MEH-PPV block segments. P50, which featured an alternating structure in its main chain, displayed a solvatochromic effect, emitting green light in non-polar solvents and yellow light in polar solvents. The HOMO and LUMO energy levels of these polymers, measured using cyclic voltammetry, ranged from -5.11 to -5.62 and from -3.08 to -3.31 eV, respectively. The incorporation of electron-withdrawing benzo[c]cinnoline moieties enhanced the electron affinity and improved the oxidative stability of the polymers. A bottom-gate, top-contact organic field-effect transistor (OFET) based on P50 exhibited n-channel behavior under ambient conditions, with an electron mobility of 7.8 × 10-3 cm2 V-1 s-1 and an on/off ratio greater than 104. No significant variation in electron mobility can be observed after this OEFT was stored under ambient conditions up to 30 days. To the best of our knowledge, this is the first time that air-stable n-channel MEH-PPV derivatives have ever been reported. It indicated that p-type MEH-PPV can be transformed into n-type materials upon incorporation of benzo[c]cinnoline moieties. This journal is the Partner Organisations 2014.

Organic light-emitting device

An organic light-emitting device includes a first electrode and a second electrode facing the first electrode. An organic layer is disposed between the first electrode and the second electrode. The organic layer includes an emission layer, a first compound and a second compound.

PYRENE DERIVATIVES AND ORGANIC ELECTRO LUMINESCENT DEVICE COMPRISING SAME

The present invention relates to a pyrene based derivative compound of an asymmetric structure and an organic electroluminescent device comprising the same. The pyrene derivative according to the present invention is characterized by being represented by chemical formula A through chemical formula B. The pyrene derivative compound according to the present invention exhibits remarkably improved blue color purity as compared to an organic electroluminescent device using an existing pyrene based aryl amine derivative compound while being able to realize full color since life characteristic and luminance characteristic are excellent, thereby being able to be used in various display devices.

Asymmetric pyrene derivatives comprising heteroaryl amine group and organic light-emitting diode including the same

The present invention relates to a pyrene derivative represented by [chemical formula A] or [chemical formula B], and an organic light emitting diode comprising the same, wherein substituents Py, Het_1 to Het_3, Z, and m are defined in the detailed description of the invention.