2,1,3-Benzothiadiazole-4,7-bis(boronic acid pinacol ester) (CAS 934365-16-9) is a Bpin-capped benzothiadiazole building block used to make small molecules, oligomers and polymers through Suzuki coupling. Ossila supplies it at >98% purity as a white to off-white powder.
Because the 2,1,3-benzothiadiazole unit is electron deficient, it is a common component of low band gap semiconducting materials, including F8BT and PCPDTBT. PCPDTBT, for example, can be prepared by coupling this boronic ester with 2,6-dibromo-4,4-bis(2-ethylhexyl)-4H-cyclopenta[1,2-b:5,4-b']dithiophene.
The resulting materials can be deposited by printing, spray coating or spin coating to build organic light-emitting diodes (OLED/PLED), organic field-effect transistors and organic photovoltaic devices. The compound has a melting point of 213 °C - 215 °C and is characterised by 1H NMR in CDCl3.
- Synthesis of small molecules, oligomers and polymers by Suzuki coupling reactions.
- Preparation of low band gap polymers such as F8BT and PCPDTBT.
- Development of semiconducting materials for OLED and PLED devices.
- Fabrication of active materials for organic field-effect transistors (OFETs).
- Research on organic photovoltaics and polymer solar cells.
| Brand | Ossila |
|---|---|
| CAS number | 934365-16-9 |
| Molecular formula | C18H26B2N2O4S |
| Purity | >98% |
| Category | — |
| Pack sizes | 1 g, 5 g |
| Physical form | White/Off-white powder |
| Storage | — |
- Product code: B181
- Molecular Weight: 388.10 g/mol
- Melting Point: 213 °C - 215 °C
- Synonym: 4,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,1,3-benzothiadiazole
- Classification: Benzothiadiazole, Organic semiconducting materials, Low band gap polymers
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