Difluoroacetylene

Difluoroacetylene

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Names
IUPAC name Difluoroacetylene
Other names Difluoroethyne
Identifiers
CAS Number	689-99-6 Y
ChemSpider	120260
Jmol 3D model	Interactive image
PubChem	136491
InChI InChI=1S/C2F2/c3-1-2-4 Key: BWTZYYGAOGUPFQ-UHFFFAOYSA-N InChI=1/C2F2/c3-1-2-4 Key: BWTZYYGAOGUPFQ-UHFFFAOYAS
SMILES FC#CF
Properties
Chemical formula	C2F2
Molar mass	62.02 g·mol−1
Vapor pressure	{{{value}}}
Related compounds
Related compounds	Dichloroacetylene
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Difluoroacetylene, C₂F₂, is a compound of carbon and fluorine. A linear molecule, its two carbons are joined by a triple bond and have terminal fluorines: F-C≡C-F. The molecule is the perfluorocarbon analog of acetylene, C₂H₂. Preparation of difluoracetylene is difficult, with danger of explosions and with low yields. Nevertheless, the compound has been made, isolated, and characterized by NMR and IR spectroscopy. The compound is of interest as a precursor to fluoropolymers containing double bonds, analogous to polyacetylene.