What is "trifluoromethylisocyanide"

Trifluoromethylisocyanide is the chemical compound with the formula CFNC. 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.

The compound trifluoracetonitrile (CFCN) is an isomer to trifluoromethylisocyanide. The nitrile is more stable, as is the usual case.