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4,4′-Bis(trifluoromethyl)-2,2′-bipyridine

CAS Number 142946-79-0

Chemistry Building Blocks, Fluorinated Building Blocks, Heterocyclic Building Blocks, Materials, Monomers


Product Code B2231-500mg
Price £100 ex. VAT

A fluorinated bipyridine building block

as a ligand for metal complexes for OLEDs, DSSCs and photocatalytic reactions


Specifications | MSDS | Literature and Reviews


4,4′-Bis(trifluoromethyl)-2,2′-bipyridine (CAS number 142946-79-0), also known as 4,4'-(CF3)2bpy, is a 2,2'-bipyridine derivative that has two anchoring trifluoromethyl groups. 2,2'-bipyridine is a popular ligand, as the nitrogen atoms and the metal centre form a stable 5-membered ring. Homoleptic rare earth metal (terbium and dysprosium) complexes with 4,4′-bis(trifluoromethyl)-2,2′-bipyridine show quantum yield up to 0.9% and high relaxation rate of 99.5 Hz in 19F NMR (B = 5.87 T at 298 K). It exhibits a great potential to use in 19F MRI/optical imaging probes.

The trifluoromethyl anchoring groups in 4,4′-bis(trifluoromethyl)-2,2′-bipyridine improve the photoconversion efficiency (up to 34%) in dye-sensitive solar cells (DSSCs). The enhancement is owing to the stabilization of the highest occupied molecular orbital (HOMO) introduced by the fluorinated building blocks.

Multiple functional groups

Multiple functional groups

For facile synthesis

Fluorinated building block

Fluorinated bipyridine building block

For organometallic complexes, solar cells, and OLEDs research

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High purity 142946-79-0

High purity

>97% High purity

General Information


CAS Number 142946-79-0
Chemical Formula C12H6F6N2
Full Name 4,4′-Bis(trifluoromethyl)-2,2′-bipyridine
Molecular Weight 292.18 g/mol
Synonyms 4,4'-Bis(trifluoromethyl)-2,2'-bipyridyl, 4,4'-(CF3)2bpy
Classification / Family Fluorinated building block, Heterocyclic building block, Ligands, DSSCs, OLEDs, Photocatalytic reactions

Chemical Structure


4,4′-Bis(trifluoromethyl)-2,2′-bipyridine chemical structure, CAS 142946-79-0
4,4′-Bis(trifluoromethyl)-2,2′-bipyridine chemical structure, CAS 142946-79-0

Product Details


Purity 97%
Melting Point Tm = 78 80 °C
Appearance White powder

MSDS Documentation


4,4′-Bis(trifluoromethyl)-2,2′-bipyridine4,4′-Bis(trifluoromethyl)-2,2′-bipyridine MSDS Sheet

Literature and Reviews


  1. 4,4’-Bis(trifluoromethyl)-2,2’-bipyridine – a multipurpose ligand scaffold for lanthanoid-based luminescence/19F NMR probes, T. Güden-Silber et al., Dalton Trans., 42, 13882(2013); DOI: 10.1039/c3dt50842k.
  2. Photochemistry between a ruthenium(II) pyridylimidazole complex and benzoquinone: simple electron transfer versus proton-coupled electron transfer, R. Hönes, Photochem. Photobiol. Sci., 12, 254–261(2013); DOI: 10.1039/C2PP25270H.
  3. Syntheses and electronic and optical properties of complexes of the bis(2,2'-bipyrazyl)ruthenium unit, B. Coe et al., Polyhedron, 95, 57–65(2015); DOI: 10.1016/j.poly.2015.04.028.

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