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CAS Number 1619967-09-7

Chemistry Building Blocks, Fluorinated Building Blocks, Materials, Monomers, Organotin Compounds

Product Code B391-250mg
Price £280 ex. VAT

High purity monomer for the synthesis of small molecules and semiconducting polymers

Free worldwide shipping on qualifying orders

Specifications | MSDS | Literature and Reviews

3,3'-Difluoro-5,5'-bis(trimethylstannyl)-2,2'-bithiophene (CAS number 1619967-09-7) is used for the synthesis of small molecules or polymer semiconductors in organic electronic applications, such as P(NDI2OD-T2F).

It is believed that, by introducing heteroatoms such as fluorine on the backbone of polymer structures, the crystalline properties of the conjugated polymers can be enhanced, resulting in a higher degree of orientation of such polymer structures with optimised domain size in blended thin films with either fullerene or non-fullerene acceptors.

This product has been used in our own lab by Ossila chemists for the synthesis of PBDD4T-2F.

Capped with trimethyltin

Capped with trimethyltin

for facil coupling reactions

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Fluorinated building block

Bithiophene building block

For semiconductors, OFETs, and solar cells

High purity 1619967-09-7

High purity

>98% High purity

General Information

CAS Number 1619967-09-7
Chemical Formula C14H20F2S2Sn2
Molecular Weight 527.86 g/mol
Synonyms (3,3'-Difluoro-[2,2'-bithiophene]-5,5'-diyl)bis(trimethylstannane), DFBT-bisSn
Classification / Family Bithiophene, Thiophene, Heterocyclic five-membered ring, Organic semiconducting materials, Semiconductor synthesis, Low band-gap polymers, OFETs, OLED, Organic photovoltaics, Polymer solar cells

Chemical Structure

(3,3'-Difluoro-[2,2'-bithiophene]-5,5'-diyl)bis(trimethylstannane), CAS 1619967-09-7
Chemical structure of DFBT-bisSn, CAS 1619967-09-7

Product Details

Purity >98%
Melting Point N/A
Appearance White flakes/crystal/powder

MSDS Documentation


Literature and Reviews

  1. Effect of Alkyl Side Chains of Conjugated Polymer Donors on the DevicePerformance of Non-Fullerene Solar Cells, D. Xia et al., Macromolecules, 49 (17), 6445–6454 (2016); DOI: 10.1021/acs.macromol.6b01326.
  2. High-Performance Non-Fullerene Polymer Solar Cells Based on a Pair of Donor–Acceptor Materials with Complementary Absorption Properties, H. Lin et al., Adv. Mater., 27, 7299–7304 (2015); DOI: 10.1002/adma.201502775.
  3. Controlling Energy Levels and Blend Morphology for All-Polymer Solar Cells via Fluorination of a Naphthalene Diimide-Based Copolymer Acceptor, M. A. Uddin et al., Macromolecules, 49 (17), 6374–6383 (2016); DOI: 10.1021/acs.macromol.6b01414.
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