3,4-Dithia-7H-cyclopenta[a]pentalene
- CAS NO.：389-58-2
- Empirical Formula: C9H6S2
- Molecular Weight: 178.27
- MDL number: MFCD20133900
- EINECS: 1592732-453-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-07-24 18:13:49
![3,4-Dithia-7H-cyclopenta[a]pentalene Structural](https://img.chemicalbook.in/CAS/GIF/389-58-2.gif)
What is 3,4-Dithia-7H-cyclopenta[a]pentalene?
Description
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]
The Uses of 3,4-Dithia-7H-cyclopenta[a]pentalene
4H-Cyclopenta[2,1-b:3,4-b'']dithiophene is useful in the synthesis of donor-acceptor copolymers.
Properties of 3,4-Dithia-7H-cyclopenta[a]pentalene
| 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 | soluble in Toluene |
| form | powder to crystal |
| color | White to Light yellow to Dark green |
| λmax | 305nm(EtOH)(lit.) |
| CAS DataBase Reference | 389-58-2 |
Safety information for 3,4-Dithia-7H-cyclopenta[a]pentalene
Computed Descriptors for 3,4-Dithia-7H-cyclopenta[a]pentalene
| InChIKey | UITASDKJJNYORO-UHFFFAOYSA-N |
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![3,5-Dibromodithieno[3,2-b:2',3'-d]thiophene](https://img.chemicalbook.in/CAS/GIF/502764-54-7.gif)
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