K0094 - Names and Identifiers
Name | 4,7-Bis(2-bromo-5-thienyl)-2,1,3-benzothiadiazole
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Synonyms | K0094 2,1,3-Benzothiadiazole, 4,7-bis(5-broMo-2-thie 4,7-Bis(5-broMo-2-thienyl)-2,1,3-benzothiadiazole 4,7-Bis(2-bromo-5-thienyl)-2,1,3-benzothiadiazole 2,1,3-Benzothiadiazole,4,7-bis(5-broMo-2-thienyl)- 4,7-di-2′-(5′-broMo)-thienyl-2,1,3-benzothiadiazole 4,7-bis(5-bromothiophen-2-yl)-2,1,3-benzothiadiazole 2,1,3-Benzothiadiazole, 4,7-bis(5-broMo-2-thienyl)-4,7-Bis(2-broMo-5-thienyl)-2,1,3-benzothiadiazole
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CAS | 288071-87-4
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InChI | InChI=1S/C14H6Br2N2S3/c15-11-5-3-9(19-11)7-1-2-8(10-4-6-12(16)20-10)14-13(7)17-21-18-14/h1-6H |
K0094 - Physico-chemical Properties
Molecular Formula | C14H6Br2N2S3
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Molar Mass | 458.21 |
Density | 1.898 |
Melting Point | 245.0 to 249.0 °C |
Boling Point | 527.3±45.0 °C(Predicted) |
Flash Point | 272.704 °C |
Appearance | solid |
Color | Orange to Brown to Dark purple |
Odor | Red needles / powder |
pKa | -1.63±0.50(Predicted) |
Storage Condition | under inert gas (nitrogen or Argon) at 2–8 °C |
MDL | MFCD16619295 |
K0094 - Risk and Safety
Hazard Symbols | T - Toxic
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Risk Codes | R25 - Toxic if swallowed
R41 - Risk of serious damage to eyes
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Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S39 - Wear eye / face protection.
S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
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UN IDs | UN 2811 6.1 / PGIII |
WGK Germany | 3 |
HS Code | 29349990 |
K0094 - Introduction
4,7-bis (2-bromo-5-thienyl)-2,1,3-benzothiadiazole is an organic compound with the chemical formula C14H6Br2N2S2. The following is an introduction to some of its properties, uses, methods and safety information:
Nature:
-Appearance: 4,7-bis (2-bromo-5-thienyl)-2,1,3-benzothiadiazole is a solid, usually yellow crystalline powder.
-Melting point: Its melting point is about 220-225°C.
-Solubility: It is soluble in common organic solvents such as dimethyl sulfoxide (DMSO), chloroform and dichloromethane.
Use:
-Optoelectronic devices: Because 4,7-bis (2-bromo-5-thienyl)-2,1,3-benzothiadiazole has good fluorescence properties in solution, it is often used in organic optoelectronic devices Among the materials, such as organic electroluminescent devices (OLED), organic solar cells (OPV) and organic field effect transistors (OFET).
-Semiconductor material: 4,7-bis (2-bromo-5-thienyl)-2,1,3-benzothiadiazole is also applied to semiconductor materials, used as energy band materials or as organic field effect transistors Carrier transport layer.
Method:
The preparation of 4,7-bis (2-bromo-5-thienyl)-2,1,3-benzothiadiazole is usually carried out by the following steps:
1. Synthesis of 5-Bromothiophene. First, thiophene and bromine are reacted in the presence of an oxidizing agent to obtain 5-bromothiophene.
2. SuZuki cross-coupling reaction occurred with 2, 1-dichloro-1, 3-benzothiadiazole (2, Ti). Reaction of 5-bromothiophene with 2,1-dichloro -1,3-benzothiadiazole in the presence of Pd(0) catalyst and base gives 4,7-bis (2-bromo-5-thienyl)-2,1,3-benzothiadiazole.
Safety Information:
When using and operating 4,7-bis (2-bromo-5-thienyl)-2,1,3-benzothiadiazole, pay attention to the following safety precautions:
-This compound may be irritating to the eyes, skin and respiratory system and should be avoided.
-Pay attention to the use of personal protective equipment such as protective gloves, goggles and protective masks during operation.
-It should be operated in a well-ventilated place and avoid inhaling its dust or vapor.
-During storage and handling, please observe the relevant safety regulations and handling methods of chemicals.
Last Update:2024-04-10 22:29:15