Difluorodiiodomethane is a tetrahalomethane with the chemical formula . This is a halomethane containing two fluorine atoms and two iodine atoms attached to the methane backbone.
Synthesis It can be prepared by reacting potassium difluorobromoacetate or methyl difluorobromoacetate with cuprous iodide, potassium iodide, and iodine in the DMF solution, or by reacting tetraiodomethane, 1,2-dichlorobenzene, and mercury fluoride.
Chemical properties In the presence of lead tetraacetate, it reacts with vinyltrimethylsilane to form (3,3-difluoro-1,3-diiodopropyl)trimethylsilane.
Physical properties The compound forms pale yellow liquid that decomposes slowly at room temperature and upon exposure to light, turning burgundy due to the liberation of iodine.
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