The crystal structure of pentafluorobenzonitrile, C7F5N, has been determine
d by in-situ crystal growth from the liquid at 268 K. The structure is iden
tical to that of the isocyanide, crystallizing in Cmca with the molecule ly
ing on a mirror plane bisecting the C6F5 ring and the cyano group. CN . . .
F interactions are not observed in the structure.