126152
1,2-Difluorobenzene
98%
Synonym(s):
o-Difluorobenzene
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About This Item
Empirical Formula (Hill Notation):
C6H4F2
CAS Number:
Molecular Weight:
114.09
Beilstein/REAXYS Number:
1905113
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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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.
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Inorganic Chemistry, 28, 3923-3923 (1989)
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
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Yang H, et al.
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I M Rietjens et al.
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