1,2-Difluorobenzene

1,2-Difluorobenzene^[1]
Names
	Preferred IUPAC name 1,2-Difluorobenzene
	Other names o-Difluorobenzene; ortho-Difluorobenzene
Identifiers
CAS Number	367-11-3 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:38583 ;
ChemSpider	9325 ;
ECHA InfoCard	100.006.074
PubChem CID	9706;
UNII	AW7QGMW29C ;
CompTox Dashboard (EPA)	DTXSID2075390 ;
	InChI InChI=1S/C6H4F2/c7-5-3-1-2-4-6(5)8/h1-4H Key: GOYDNIKZWGIXJT-UHFFFAOYSA-N ; InChI=1/C6H4F2/c7-5-3-1-2-4-6(5)8/h1-4H Key: GOYDNIKZWGIXJT-UHFFFAOYAN;
	SMILES Fc1ccccc1F;
Properties
Chemical formula	C6H4F2
Molar mass	114.093 g/mol
Appearance	colorless liquid
Density	1.1599 g/cm3
Melting point	−34 °C (−29 °F; 239 K)
Boiling point	92 °C (198 °F; 365 K)
Solubility in water	(insoluble) 1.14 g/L
Related compounds
Related compounds	1,2-Dichlorobenzene
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

1,2-Difluorobenzene, also known as DFB, is an aromatic compound with formula C₆H₄F₂. This colorless flammable liquid is a solvent used in the electrochemical studies of transition metal complexes. Compared to most conventional halogenated aliphatic and aromatic solvents, it possesses an exceptionally high dielectric constant (ε₀ = 13.8 at 300 K). Thus, it can be a suitable solvent for cationic, and/or highly electrophilic organometallic complexes.^[2]

^ David R. Lide, ed., CRC Handbook of Chemistry and Physics, 89th Edition (Internet Version 2009), CRC Press/Taylor and Francis, Boca Raton, FL.
^ Pike, Sebastian D.; Crimmin, Mark R.; Chaplin, Adrian B. (2017). "Organometallic chemistry using partially fluorinated benzenes" (PDF). Chemical Communications. 53 (26): 3615–3633. doi:10.1039/C6CC09575E. PMID 28304406.

[1] David R. Lide, ed., CRC Handbook of Chemistry and Physics, 89th Edition (Internet Version 2009), CRC Press/Taylor and Francis, Boca Raton, FL.

[2] Pike, Sebastian D.; Crimmin, Mark R.; Chaplin, Adrian B. (2017). "Organometallic chemistry using partially fluorinated benzenes" (PDF). Chemical Communications. 53 (26): 3615–3633. doi:10.1039/C6CC09575E. PMID 28304406.

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