5,5'-Dibromo-4,4'-dihexyl-2,2'-bithiophene (CAS 214493-03-5) from Ossila is a bithiophene monomer used to build semiconducting oligomers and polymers for organic field-effect transistors (OFETs), organic solar cells (OSCs) and OLED materials. Hexyl chains at the 4,4'-positions give the compound excellent solubility, while bromine atoms at the 5,5'-positions provide reactive handles for coupling reactions and further functionalization.
Because the two thiophene rings are already linked at the 2,2'-positions with the hexyl groups pointing away from each other, the molecule offers a well-defined structure. This helps chemists target a specific conformation or address film morphology, something random coupling of single thiophene units cannot guarantee.
The compound is suitable for preparing thiophene oligomers and polymers, as well as block copolymers and small molecules combined with other building blocks such as perylene, triphenylamine and carbazoles. It is supplied as a yellow liquid with >98% purity determined by 1H NMR.
- Synthesis of thiophene-based semiconducting oligomers and polymers for OFETs.
- Preparation of donor materials for organic photovoltaics and organic solar cells.
- Building block for OLED material synthesis.
- Construction of block copolymers and small molecules with perylene, triphenylamine or carbazole units.
- Studies of conformation control and film morphology in conjugated materials.
| Brand | Ossila |
|---|---|
| CAS number | 214493-03-5 |
| Molecular formula | C20H28Br2S2 |
| Purity | >98% (1H NMR) |
| Category | — |
| Pack sizes | 1 g, 2 g |
| Physical form | Yellow liquid |
| Storage | — |
- Product code: B1551
- Molecular Weight: 492.37 g/mol
- Synonym: 2-bromo-5-(5-bromo-4-hexylthiophen-2-yl)-3-hexylthiophene
- Boiling Point: > 468.8±40.0 °C at 760 mmHg
- Relative Density: 1.4±0.1 g/cm3
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