BT-C14-2Br
BT-C14-2Br, namely 5,5′-Dibromo-4,4′-ditetradecyl-2,2′-bithiophene, is a bithiophene derivate with unbranched tetradecyl alkyl (C14) chains. C14 side chains have tendency to self-aggregate in the mixture of solvent/non-solvent, i.e. chloroform and toluene.
BT-C14-2Br is normally used as a building block for the synthesis of PBTTT-C14.
General Information
CAS number | 888491-16-5 |
Chemical formula | C36H60Br2S2 |
Full name | 5,5′-Dibromo-4,4′-ditetradecyl-2,2′-bithiophene |
Molecular weight | 716.80 g/mol |
Synonyms | 2,2'-dibromo-3,3'-bis(n-tetradecyl)-5,5'-bithiophene |
Classification / Family | Bithiophene, Semiconductor synthesis intermediates, Low band gap polymers, OFETs, Organic photovoltaics, polymer solar cells |
Chemical Structure

Product Details
Purity | > 98% (1H NMR in CDCl3) |
Melting point | 64 - 68 °C |
Appearance | Off-white crystalline powder |
MSDS Documentation
Literature and Reviews
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High performance light emitting transistors, E. Namdas et al., Appl. Phys. Lett. 92, 183304 (2008); DOI: 10.1063/1.2920436.
- High Carrier Mobility Polythiophene Thin Films: Structure Determination by Experiment and Theory, D. DeLongchamp et al., Adv. Mater., 19, 833–837 (2007); DOI: 10.1002/adma.200602651.
- Semiconducting Thienothiophene Copolymers: Design, Synthesis, Morphology, and Performance in Thin-Film Organic Transistors, I. McCulloch et al., Adv. Mater., 21, 1–19(2009); DOI: 10.1002/adma.200801650.
- New Angular-Shaped and Isomerically Pure Anthradithiophene with Lateral Aliphatic Side Chains for Conjugated Polymers: Synthesis, Characterization, and Implications for Solution-Prossessed Organic Field-Effect Transistors and Photovoltaics, J. Wu et al., Chem. Mater., 24, 12, 2391–2399 (2012); DOI: 10.1021/cm301176s.
- Morphology controls the thermoelectric power factor of a doped semiconducting polymer, S. Patel et al., Sci. Adv., 3, e1700434 (2017); DOI: 10.1126/sciadv.1700434.
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