Compounds having the structure RC≡N; thus C-substituted derivatives of hydrocyanic acid, HC≡N. In systematic nomenclature, the suffix nitrile denotes the triply bound ≡N atom, not the carbon atom attached to it.
See also: cyanides, isocyanides, carbonitriles
PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1350 (