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CAS Number 1134-35-6

Chemistry Building Blocks, Heterocyclic Building Blocks, Materials, Monomers

Product Code B1491-10g
Price $90 ex. VAT

A well-known bipyridyl ligand with two methyl groups

Readily available for the synthesis of organometallic photosensitizer dyes in development of dye-sensitized solar cells (DSSCs)

Specifications | MSDS | Literature and Reviews

4,4'-Dimethyl-2,2'-bipyridyl (CAS number 1134-35-6), derived from bipyridine and also bearing electron rich methyl functional groups at 4,4'-positions, is typically used as a starting material for the sensitizers synthesis in dye sensitized solar cells (DSSCs).

Bipyridine ligand is a strong chelating ligand for metal centres in coordinative compounds. The organometallic compound of 4,4'-dimethyl-2,2'-bipyridyl increases the bridging ligand lengths resulting a greater electron-hole separation effect in DSSCs, hence reduce charge recombination to improve the overall device efficiency. High device efficiencies engaging 4,4'-dimethyl-2,2'-bipyridyl coordinative dyes are attributed to efficient light harvesting of these novel dyes and the improved charge transfer dynamics at TiO2–dye and dye–hole transport interfaces.

4,4'-Dimethyl-2,2'-bipyridyl is also used for fabricating electrochemiluminescence (ECL) materials. It enhances the ECL intensity owing to the donor ability as a α-diimine ligands.

General Information

CAS Number 1134-35-6
Chemical Formula C12H12N2
Full Name 4,4'-Dimethyl-2,2'-bipyridyl
Molecular Weight 184.24 g/mol
Synonyms 2,2′-Bi(γ-picoline), 4,4′-Dimethyl-2,2′-bipyridine
Classification / Family Bipyridyl derivatives, Semiconductor synthesis intermediates, Heterocyclic building blocks, Dye-sensitized solar cells (DSSCs)

Chemical Structure

4,4'-Dimethyl-2,2'-bipyridyl, CAS 1134-35-6
4,4'-Dimethyl-2,2'-bipyridyl chemical structure, CAS 1134-35-6

Product Details

Purity >98% (1H NMR)
Melting Point Tm = 169 - 174 °C
Appearance Pale pink powder

MSDS Documentation

4,4'-Dimethyl-2,2'-bipyridyl4,4'-Dimethyl-2,2'-bipyridyl MSDS Sheet

Literature and Reviews

  1. Accessing the charge separation effects in dye-sensitized solar cells based on a vectorial planning of supramolecular ruthenium dye, A. Parussulo et al., Inorganica Chim. Acta, 453, 764-770 (2016); DOI: 10.1016/j.ica.2016.09.039.
  2. Artificial photosynthesis based on dye-sensitized nanocrystalline TiO2 solar cells, J.-J. Lagref et al., Inorganica Chim. Acta, 361(3), 735-745(2008); DOI: 10.1016/j.ica.2007.05.061.
  3. Molecular engineering on semiconductor surfaces: design, synthesis and application of new efficient amphiphilic ruthenium photosensitizers for nanocrystalline TiO2 solar cells, J.-J Lagref et al., Synth. Met., 138(1-2), 333-339(2003); DOI: 10.1016/S0379-6779(03)00034-1.
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