3,5-Difluorobenzonitrile

CAS Number 64248-63-1

Chemistry Building Blocks, Fluorinated Building Blocks, Monomers

A difluorinated benzonitrile building block

Used as electron acceptors in OLEDs and catalysts in organometallic chemistry

Overview
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3,5-Difluorobenzonitrile (CAS number 64248-63-1) is a benzonitrile derivatives with two fluorine substituents at the meta-positions. 3,5-Difluorobenzonitrile is applied as an electron acceptor unit in axially chiral excimers/exciplexes showing cyan luminescence. The exciplexes also display thermally activated delayed fluorescence (TADF), which are promising for OLEDs. The chromophore size of 3,5-difluorobenzonitrole can be expended with carbazole derivatives through nucleophilic aromatic substitution. The synthesized 3,5-difluorobenzonitrole-carbazol emitters have photoluminescence quantum yield (PLQY) of 29% and external quantum efficiency (EQE) of 5.3%.

3,5-Difluorobenzonitrile has also found its use in organometallic chemistry. 3,5-Difluorobenzonitrile assists the conversion of catalytically inactive (phosphine)₂Ni to (phosphine)Ni(alkene), a desired catalyst intermediate in cross coupling-reactions.

Multiple functional groups

For facile synthesis

Fluorinated benzonitrile building block

For drug discovery, organic synthesis and OLEDs research

Worldwide shipping

Quick and reliable shipping

High purity

>98% High purity

General Information

CAS Number	64248-63-1
Chemical Formula	C₇H₃F₂N
Full Name	3,5-Difluorobenzonitrile
Molecular Weight	139.10 g/mol
Synonyms	5-Cyano-1,3-difluorobenzene
Classification / Family	Fluorinated building block, Benzonitrile derivatives, Dyes, OLEDs, Ligands, Catalysts

Chemical Structure

Product Details

Purity	98%
Melting Point	T_m = 84 °C – 86 °C
Appearance	White powder

MSDS Documentation

3,5-Difluorobenzonitrile MSDS Sheet

Literature and Reviews

Structural studies of perfluoroaryldiselenadiazolyl radicals: insights into dithiadiazolyl chemistry, R. Melen et al., Inorg. Chem., 55, 11747–1175(2016); DOI: 10.1021/acs.inorgchem.6b01771.
Comprehensive study of the reactions between chelating phosphines and Ni(cod)₂, A. Clevenger et al., Organometallics, 37, 19, 3259–3268(2018); DOI: 10.1021/acs.organomet.8b00438.
Luminescent chiral exciplexes with sky-blue and green circularly polarized-thermally activated delayed fluorescence, P. Sumsalee et al., Chem. Eur. J., 27, 16505(2021); DOI: 10.1002/chem.202102765.
An axially chiral thermally activated delayed fluorescent emitter with a dual emitting core for a highly efficient organic light-emitting diode, Y.-F. Wang et al., Chem. Commun., 56, 9380–9383(2020); DOI: 10.1039/D0CC03822A.

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