trifluoromethylisocyanide
{{chembox
| Verifiedfields = changed
| verifiedrevid = 470614562
| ImageFile = Trifluoromethyl isocyanide.svg
| ImageSize = 160
| ImageAlt = Skeletal formula
| ImageFile1 = Trifluoromethyl-isocyanide-3D-spacefill.png
| ImageSize1 = 150
| ImageAlt1 = Space-filling model
| IUPACName = trifluoro(isocyano)methane
| OtherNames = trifluoro-methyl-azaniumylidyne methane
|Section1={{Chembox Identifiers
| InChI = 1/C2F3N/c1-6-2(3,4)5
| InChIKey = LKHQVUSYAMWNQZ-UHFFFAOYAU
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C2F3N/c1-6-2(3,4)5
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = LKHQVUSYAMWNQZ-UHFFFAOYSA-N
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = 19480-01-4
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = R3NG676YU8
| PubChem = 145434
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 128288
| SMILES = [C-]#[N+]C(F)(F)F
}}
|Section2={{Chembox Properties
| Formula = CF3NC
| MolarMass = 95.023
| Appearance =
| Density =
| MeltingPt =
| BoilingPt =
| Solubility =
}}
|Section3={{Chembox Hazards
| MainHazards =
| FlashPt =
| AutoignitionPt =
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Trifluoromethylisocyanide is the chemical compound with the formula CF3NC. It is an isocyanide and a fluorocarbon. Polymerisation occurs even at temperatures below its boiling point of −80 °C. As a ligand in coordination chemistry, this species behaves similarly to carbon monoxide.{{cite journal| author=D. Lentz|title= Fluorinated Isocyanides - More than Ligands with Unusual Properties |journal= Angewandte Chemie International Edition in English|year= 1994|volume= 33| issue=13|pages= 1315–1331| doi=10.1002/anie.199413151}}
The compound trifluoracetonitrile (CF3CN) is an isomer to trifluoromethylisocyanide. The nitrile is more stable, as is the usual case.