2,5-Bis(5-broMo-2-thienyl)thiophene - Names and Identifiers
2,5-Bis(5-broMo-2-thienyl)thiophene - Physico-chemical Properties
Molecular Formula | C12H6Br2S3
|
Molar Mass | 406.18 |
Density | 1.839 |
Melting Point | 150-155°C |
Boling Point | 417.2±40.0 °C(Predicted) |
Flash Point | 206.1°C |
Vapor Presure | 8.71E-07mmHg at 25°C |
Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
Refractive Index | 1.706 |
2,5-Bis(5-broMo-2-thienyl)thiophene - Risk and Safety
Hazard Symbols | T - Toxic
|
Risk Codes | R25 - Toxic if swallowed
R37/38 - Irritating to respiratory system and skin.
R41 - Risk of serious damage to eyes
|
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
|
UN IDs | UN 2811 6.1/PG 3 |
WGK Germany | 3 |
HS Code | 29349990 |
2,5-Bis(5-broMo-2-thienyl)thiophene - Introduction
5,5 "-dibromo-2,2 ':5',2"-terthiophene is an organic compound with the chemical formula C12H6Br2S3. It is a compound with three thiophene rings on the benzene ring, in which two hydrogen atoms are replaced by bromine.
The compound has the following properties:
1. Appearance: 5,5 ''-dibromo-2,2 ':5',2''-terthiophene are white to pale yellow crystals.
2. Melting point: Its melting point is about 145-147°C.
3. density: its density is about 1.92g/cm³.
4. Solubility: It has good solubility in some solvents, such as chloroform, dimethyl sulfoxide and dimethylformamide.
5,5 ''-dibromo-2,2 ':5',2''-terthiophene has a wide range of uses:
1. As an organic semiconductor material, it can be used in organic optoelectronic devices, such as organic thin film solar cells and organic field effect transistors.
2. as a starting material for the synthesis of new compounds in the laboratory, for the synthesis of other compounds with special properties.
Preparation of 5,5 "-dibromo-2,2 ': The method of 5',2"-terthiophene usually involves the following steps:
1. reacting 2,2 '-dibromo -5,5'-dimethyldithiophene with sulfur to generate 2,2 ':5',2 ''-trithiophene;
2. In the presence of elemental bromine, 2,2 ':5',2 "-trithiophene reacts with bromine to generate 5,5"-dibromo-2,2 ':5',2 "-terthiophene.
Safety precautions when using and handling 5,5 ''-dibromo-2,2 ':5',2''-terthiophene:
1. Avoid inhaling the dust or vapor of the compound.
2. Avoid contact with skin and eyes. In case of accidental contact, rinse immediately with plenty of water.
3. use should provide good ventilation or wear appropriate protective equipment, such as breathing masks and protective glasses.
4. Store the compound in a dry, cool place and separate from flammable substances, oxidants, etc.
This information is for reference only. Please follow the safety procedures required for chemical experiments in actual operation.
Last Update:2024-04-10 22:29:15