4,7-Dibromo-5-fluoro-2,1,3-benzothiadiazole
4,7-Dibromo-5-fluoro-2,1,3-benzothiadiazole (CAS: 1347736-74-6; C6HBr2FN2S; MW: 311.96) is a specialised organic compound utilised as a building block in materials science. Its structure lends itself to the synthesis of advanced polymers, particularly for applications in organic solar cells and field-effect transistors. The fluorination of this molecule is known to effectively lower the polymer's HOMO level, contributing to higher open-circuit voltages in electronic devices.
- IUPAC
- Dibromo-FBT
- Synonyms
- 3-benzothiadiazole,1347736-74-6, C6HBr2FN2S, Dibromo-FBT
Organic Solar Cells (OPVs)
Serves as a monomer for synthesising polymers that achieve high power conversion efficiencies (PCE) in bulk heterojunction organic solar cells. Fluorination aids in achieving high open-circuit voltages, exceeding 0.7 V, contributing to improved device performance.
Organic Field-Effect Transistors (OFETs)
A key building block for creating polymers with high charge carrier mobility, essential for advanced organic electronic applications. The unique electronic properties derived from its structure are crucial for high-performance transistor fabrication.
Polymer Synthesis
Utilised as a synthetic tool for creating novel conjugated polymers. Its dibromo substitution allows for controlled polymerisation reactions, enabling the development of tailored materials with specific electronic and optical properties.
| Molecular weight | 311.96 |
|---|---|
| Empirical formula | C6HBr2FN2S |
| Assay | ≥99% (HPLC) |
| Application | Monomer for synthesis of polymers for high power conversion efficiency (PCE) organic solar cells and high mobility OFETs.Fluorination lowers the polymer HOMO level; resulting in high open-circuit voltages well exceeding 0.7 V.High-Efficiency Polymer F-PCPDTBT:PC70BM Bulk Heterojuction Organic Solar Cells (OPVs):• JSC = 14.1 mA/cm2• VOC = 0.74 V• FF = 0.58• PCE = 6.2% |
| Melting point | 158-163 °C |
Hazard statements
- H302Harmful if swallowed
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4,7-Dibromo-5-fluoro-2,1,3-benzothiadiazole used for?
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This compound is primarily used as a monomer in the synthesis of polymers for high-efficiency organic solar cells (OPVs) and organic field-effect transistors (OFETs), contributing to enhanced device performance through controlled electronic properties.
What are the CAS number and molecular formula for 4,7-Dibromo-5-fluoro-2,1,3-benzothiadiazole?
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The CAS number is 1347736-74-6 and the empirical formula (Hill notation) is C6HBr2FN2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4,7-Dibromo-5-fluoro-2,1,3-benzothiadiazole with an assay of ≥99% as determined by HPLC. TSS does not represent this product as USP, BP, EP, or any pharmacopoeia grade.
What are the safety and handling considerations for this chemical?
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This compound is classified as harmful if swallowed (H302). It requires handling with appropriate personal protective equipment to avoid ingestion and contact. Refer to the Safety Data Sheet for comprehensive handling and safety information.
How is 4,7-Dibromo-5-fluoro-2,1,3-benzothiadiazole packed and shipped?
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Products are carefully packed according to international shipping regulations for chemicals and exported globally by Tech Serve Solutions. Specific packaging details can be provided upon request.
How can I request a sample or quote for 4,7-Dibromo-5-fluoro-2,1,3-benzothiadiazole?
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To request a sample or a quotation, please contact the Tech Serve Solutions sales team via our website or by direct email, providing your contact details and the product information.
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