Ossila 2,7-Dibromo-9,9-bis[3,3'-(N,N-dimethylamino)-propyl]fluorene B191

2,7-Dibromo-9,9-bis[3,3'-(N,N-dimethylamino)-propyl]fluorene (CAS 673474-73-2) is a dibrominated fluorene monomer carrying two dimethylaminopropyl side chains. It serves as a building block for conjugated polyelectrolytes such as PFN (Poly[9,9-bis(3'-(N,N-dimethylamino)-propyl-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene)]) and PBN, materials used as interlayers in organic electronic devices.

PFN can be prepared by Suzuki polymerization of this monomer with 9,9-dioctylfluorene-2,7-diboronic acid bis(pinacol) ester. The compound belongs to the fluorene and organic semiconducting materials families, with relevance to low band gap polymers, OFETs, OLEDs, organic photovoltaics and polymer solar cells.

Ossila supplies it as a pale orange powder with purity above 98% and a melting point of 74 °C - 78 °C, in 1 g and 5 g packs.

• Synthesis of the conjugated polyelectrolyte PFN via Suzuki polymerization.
• Preparation of the benzodithiophene-based polyelectrolyte PBN.
• Development of cathode interlayers and electron transport layers for polymer solar cells.
• Research on organic semiconducting materials for OFETs and OLEDs.

• Product code: B191
• M​olecular Weight: 494.31 g/mol
• Melting Point: 74 °C - 78 °C
• Synonym: 2,7-Dibromo-N,N,N',N'-tetramethyl-9H-fluorene-9,9-dipropanamine

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