![4H-Cyclopenta[2,1-b:3,4-b']dithiophene](https://img.chemicalbook.com/CAS/GIF/389-58-2.gif)
PRODUCT Properties
| Melting point: | 71.0 to 75.0 °C |
| Boiling point: | 307.8±22.0 °C(Predicted) |
| Density | 1.400 |
| storage temp. | Keep in dark place,Inert atmosphere,2-8°C |
| solubility | Toluene[soluble in] |
| solubility | soluble in Toluene |
| form | powder to crystal |
| color | White to Light yellow to Dark green |
| λmax | 305nm(EtOH)(lit.) |
| InChIKey | UITASDKJJNYORO-UHFFFAOYSA-N |
Description and Uses
4H-cyclopenta[2,1-b:3,4-b′]dithiophene, also known as CPDT, a rigid coplanar structure favouring π?π intermolecular interactions with good electron-donating properties, has been one of the most attractive building blocks for organic field effect transistors and organic electronics. The five-member ring in the middle also offer the function to have side-chain manipulation to enhance solubility in solutions for device fabrications, morphology and polymer processing. One of the intensively studied polymer for organic electrons, PCPDTBT, with the alternating CPDT and 2,1,3- benzothiadiazole (BT) units, has demonstrated device performance of PCE over 6% [5]
4H-Cyclopenta[2,1-b:3,4-b'']dithiophene is useful in the synthesis of donor-acceptor copolymers.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H335-H319-H315 |
| Precautionary statements | P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P |
| HS Code | 2934.99.4400 |
![3,5-Dibromodithieno[3,2-b:2',3'-d]thiophene](https://img.chemicalbook.com/CAS/GIF/502764-54-7.gif)
