Order Code: B191
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General Information

CAS number 673474-73-2
Chemical formula C23H30Br2N2
Molecular weight 494.31 g/mol
  • 3,3’-(2,7-Dibromo-9H-fluorene-9,9-diyl)bis(N,N-dimethylpropan-1-amine)
  • 3,3'-(2,7-Dibromo-9H-fluorene-9,9-diyl)bis(N,N-dimethyl-1-propanamine)
  • 2,7-Dibromo-N,N,N',N'-tetramethyl-9H-fluorene-9,9-dipropanamine
Classification / Family Fluorene, Triamine, Organic semiconducting materials, Semiconductor synthesis, Low band gap polymers, OFETs, OLED, Organic Photovoltaics, Polymer solar cells


Product Details

Purity >98%
Melting point 74-78°C
Appearance Off-white solid


chemical structure of dibromo-fluorene-diyl-bisdimethylpropan-amine cas number 673474-73-2
Chemical structure of 3,3’-(2,7-Dibromo-9H-fluorene-9,9-diyl)bis(N,N-dimethylpropan-1-amine). CAS number: 673474-73-2. Chemical formula: C23H30Br2N2.


3,3’-(2,7-Dibromo-9H-fluorene-9,9-diyl)bis(N,N-dimethylpropan-1-amine) is a building block for the synthesis of polyeletrolytes i.e., Poly[9,9-bis(3'-(N,N-dimethylamino)-propyl-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene)] (PFN) or Poly{3-[2-[4,8-bis(2-ethylhexyloxy)-6-methyl-1,5-dithia-s-indacen-2-yl]-9-(3-dimethylamino-propyl)-7-methyl-9H-fluoren-9-yl]-propyl}-dimethylamine (PBN).

PFN synthesis with 3,3’-(2,7-Dibromo-9H-fluorene-9,9-diyl)bis(N,N-dimethylpropan-1-amine) and 9,9-Dioctylfluorene-2,7-diboronic acid bis(pinacol) ester
Synthesis of PFN with 3,3’-(2,7-Dibromo-9H-fluorene-9,9-diyl)bis(N,N-dimethylpropan-1-amine) and 9,9-Dioctylfluorene-2,7-diboronic acid bis(pinacol) ester employing Suzuki polymerisation.


Literature and Reviews

  1. Effect of conjugated polyelectrolyte interlayer at cathode in bulk heterojunction photocells based on neat C70 and low-energy-gap polymer prepared with halogen-free solvent, K. Tada, Appl. Phys. Express, 7, 051601 (2014)
  2. A Benzodithiophene-Based Novel Electron Transport Layer for a Highly Efficient Polymer Solar Cell, H. Kim et al., Appl. Mater. Interfaces, 6, 15875-15880 (2014)


To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.