MilliporeSigma
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126152

Sigma-Aldrich

1,2-Difluorobenzene

98%

Empirical Formula (Hill Notation):
C6H4F2
CAS Number:
Molecular Weight:
114.09
Beilstein:
1905113
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

98%

form

liquid

refractive index

n20/D 1.443 (lit.)

bp

92 °C (lit.)

mp

−34 °C (lit.)

density

1.158 g/mL at 25 °C (lit.)

SMILES string

Fc1ccccc1F

InChI

1S/C6H4F2/c7-5-3-1-2-4-6(5)8/h1-4H

InChI key

GOYDNIKZWGIXJT-UHFFFAOYSA-N

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General description

1,2-Difluorobenzene undergoes defluorination under very mild conditions by H2 in the presence of NaOAc over rhodium pyridylphosphine and bipyridyl complexes tethered on a silica-supported palladium catalyst.

Application

Solvent useful for electrochemical studies on transition metal complexes.
1,2-Difluorobenzene(1,2-DFB) has been used to study the mechanism of dissociation of o-, m- and p-difluorobenzene ions by threshold photoelectron photoion coincidence spectroscopy. It has been used to study the room temperature adsorption of 1,2-DFB, 1,2-dichlorobenzene and 1,2-dibromobenzene on Si(100)2x1 by X-ray photoelectron spectroscopy and temperature programmed desorption. It was used as solvent in electrochemical studies on transition metal complexes.

Packaging

10, 50 g in glass bottle

Pictograms

Flame

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

33.8 °F - closed cup

Flash Point(C)

1 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Hydrodefluorination of fluorobenzene and 1, 2-difluorobenzene under mild conditions over rhodium pyridylphosphine and bipyridyl complexes tethered on a silica-supported palladium catalyst.
Yang H, et al.
Organometallics, 18(12), 2285-2287 (1999)
Anne-Marie Boulanger et al.
Journal of the American Society for Mass Spectrometry, 20(1), 20-24 (2008-10-18)
Threshold photoelectron photoion coincidence (TPEPICO) experiments have shown that o-, m-, and p-difluorobenzene ions dissociate via a common, ring-opened intermediate and not via ionized p-difluorobenzene. Rice-Ramsperger-Kassel-Marcus (RRKM) modeling of the experimental breakdown curves yields activation energies for the initial isomerization
Inorganic Chemistry, 28, 3923-3923 (1989)
Adrian Romero-Flores et al.
Chemosphere, 186, 151-159 (2017-08-05)
Electronic noses have been widely used in the food industry to monitor process performance and quality control, but use in wastewater and biosolids treatment has not been fully explored. Therefore, we examined the feasibility of an electronic nose to discriminate
Competition between associative and dissociative adsorption of 1, 2-dihalogenated benzenes on Si (100) 2? 1: Formation of dihalocyclohexadiene, halophenyl and phenylene adstructures.
Zhou XJ and Leung KT.
Surface Science, 600(16), 3285-3296 (2006)

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