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Merck

126152

Sigma-Aldrich

1,2-Difluorobenzene

98%

Sinónimos:

o-Difluorobenzene

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About This Item

Fórmula empírica (notación de Hill):
C6H4F2
Número de CAS:
Peso molecular:
114.09
Beilstein/REAXYS Number:
1905113
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

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

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.
Solvent useful for electrochemical studies on transition metal complexes.

pictograms

Flame

signalword

Danger

hcodes

pcodes

Hazard Classifications

Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

33.8 °F - closed cup

flash_point_c

1 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


Certificados de análisis (COA)

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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
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)
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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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