2,2'-bithiophene-5-carbonitrile (CAS 16278-99-2), also known as 5-cyano-2,2'-bithiophene, is a nitrile-functionalised bithiophene monomer supplied at >98% purity as a white powder or crystals. It serves as an intermediate in preparing semiconducting materials for organic electronic devices, including OLED and organic photovoltaic materials.
Its main role is as a precursor to 3,6-bis[5-(2,2'-bithiophene)]pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione, a pyrrolopyrrole derivative that can be further modified into oligomers or polymers. Because the 2,2'-bithiophene unit is electron-rich, it is a useful building block for semiconductor synthesis, and when incorporated into polymer backbones it has been shown to promote crystallinity and the formation of small domains in bulk heterojunction solar cells.
The compound has a molecular formula of C9H5NS2, a molecular weight of 191.27 g/mol and a melting point of 74 °C - 75 °C. It is characterised by 1H NMR in CDCl3.
- Synthesis of 3,6-bis[5-(2,2'-bithiophene)]pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione and other pyrrolopyrrole derivatives.
- Preparation of oligomers and polymers for organic electronic devices.
- Development of OLED materials.
- Synthesis of organic photovoltaic materials, including polymers for bulk heterojunction solar cells.
| Brand | Ossila |
|---|---|
| CAS number | 16278-99-2 |
| Molecular formula | C9H5NS2 |
| Purity | >98% |
| Category | — |
| Pack sizes | 5 g |
| Physical form | White powder/crystals |
| Storage | — |
- Product code: B311
- Molecular Weight: 191.27 g/mol
- Synonyms: 5-(2-thienyl)thiophene-2-carbonitrile; 5-cyano-2,2'-bithiophene
- Melting Point: 74 °C - 75 °C
- Classification / Family: Thiophene, Bithiophene, Heterocyclic five-membered ring, Organic materials, Semiconductor synthesis, Building blocks
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