Order Code: B221


(excluding Taxes)


Note: This product has been used in our own lab by Ossila chemist for the synthesis of PDPP4T and DPPDPyBT (n-type).

General Information

CAS number 143367-56-0
Chemical formula C14H22S2Sn2
Molecular weight 491.87 g/mol



Classification / Family

Bithiophene, Thiophene, Heterocyclic five-membered ring, Organic semiconducting materials

Semiconductor Synthesis, Low band gap polymers, OFETs

OLED, Organic Photovoltaics, Polymer Solar Cells


Product Details



Melting point


Color White flakes


Chemical Structure

Chemical structure of 5,5'-bis(trimethylstannyl)-2,2'-bithiophene
CAS number 143367-56-0; Chemical formula C14H22S2Sn2


5,5'-bis(trimethylstannyl)-2,2'-bithiophene can be used for the synthesis of small molecules and polymer semiconductors for OFETs, OLED, PLED, OPV applications.5,5'-bis(trimethylstannyl)-2,2'-bithiophene can be prepared from 2,2'-bithiophene which is an electron rich and donating unit if it is embedded into low band-gap polymer semiconductors.

Reacting with 4,​9-​dibromo-​2,​7-​bis(2-​octyldodecyl)​-Benzo[3,​8]​phenanthroline-​1,​3,​6,​8-(2H,​7H)​-​tetrone, 5,5'-bis(trimethylstannyl)-2,2'-bithiophene yields a heavily n-dopable π-conjugated redox polymer, poly{[N,N′-bis(2-octyldodecyl)-1,4,5,8-naphthalenedicarboximide-2,6-diyl]-alt-5,5′-(2,2′-bithiophene)} (PNDI2OD-T2).

Synthesis of PNDI2OD-T2 by reacting 4,9-dibromo-2,7-bis(2-octyldodecyl)-Benzo[3,8]phenanthroline-1,3,6,8(2H,7H)-tetrone with 5,5'-bis(trimethylstannyl)-2,2'-bithiophene via Stille Coupling polymerisation

 NMR Characterisation

1H NMR bistrimethylstannylbithiophene in CDCl3
1H NMR spectrum of 5,5'-bis(trimethylstannyl)-2,2'-bithiophene in CDCl3: Instrument AVIIIHD400 (see full version)

Literature and Reviews

  1. A Polythiophene Derivative with Superior Properties for Application in Polymer Solar Cells, M. Zhang, Adv. Mater., 26 (33), 5880-5885 (2014)
  2. Low Band-Gap Conjugated Polymers with Strong Interchain Aggregation and Very High Hole Mobility Towards Highly Efficient Thick-Film Polymer Solar Cells, Z. Chen, Adv. Mater., 26 (16), 2586-2591 (2014)
  3. A high-mobility electron-transporting polymer for printed transistors, H. Yan, Nat. Mater., 457, 679 (2009)
  4. Bithiophene-Imide-Based Polymeric Semiconductors for Field-Effect Transistors: Synthesis, Structure-Property Correlations, Charge Carrier Polarity, and Device Stability, X. Guo et al., J. Am. Chem. Soc., 133, 1405-1418 (2011)